16
1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT [email protected] www.StevePRehab.com @StevePRehab StevePRehab Learning Objectives 1. Identity the three basic types of neglect. 2. Identify and describe 2 neglect treatments. 3. Identify and describe the two types of apraxia. 4. Describe two apraxia treatments What is unilateral spatial neglect (USN)? Neglect is: “failure to report, respond, or orient to sensory stimuli presented to the side contralateral to the stroke lesion site” (Heilman et al., 1985) “inability to integrate and use perceptual information from one side of the body or one side of the environment.” (Guttman, 2009; p.73) …also called “unilateral neglect,” “hemi-inattention,” “visual neglect,” and “hemi-spatial neglect” …under-detected, under-evaluated, and under-treated, which is why #’s vary. The tendency is to look for a “common sign” (e.g., right; previous “clock” slide) or to assume its not present 1 2 3

Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT [email protected]

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Page 1: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

1

Perceptual Processes and AssessmentsAn Introduction

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

Learning Objectives

1 Identity the three basic types of neglect

2 Identify and describe 2 neglect treatments

3 Identify and describe the two types of apraxia

4 Describe two apraxia treatments

What is unilateral spatial neglect (USN)

Neglect is

bull ldquofailure to report respond or orient to sensory stimuli presented to the side contralateral to the stroke lesion siterdquo (Heilman et al 1985)

bull ldquoinability to integrate and use perceptual information from one side of the body or one side of the environmentrdquo (Guttman 2009 p73)

bull hellipalso called ldquounilateral neglectrdquo ldquohemi-inattentionrdquo ldquovisual neglectrdquo and ldquohemi-spatial neglectrdquo

bull hellipunder-detected under-evaluated and under-treated which is why rsquos vary

bull The tendency is to look for a ldquocommon signrdquo (eg right previous ldquoclockrdquo slide) or to assume its not present

1

2

3

142021

2

Why Does Neglect Usually Occur on the L Side

(A) Both parietal lobes work together ndash R controls BOTH sides

(B) R sided lesion rarr No bi-directional control L only ldquoseesrdquo R side

(C) L sided lesion rarr No Problem

Types of Neglect

Three Common Neglect Types

bull Extrapersonal neglect behaviors occurring in ldquolargerrdquo or ldquofarrdquo space

bull Large table Hallway shopping area

bullPt collides into surroundings or is reported to do so by care partner

bullBruising discoloring andor rippedfrayed clothing on the contralateral UE or LE

bullPt may think it is ldquonot a big dealrdquo or ldquojust part of the strokerdquo

4

5

6

142021

3

Three Common Types of Neglect (contrsquod)

Peripersonal neglectbehaviors occur in ldquonear personrdquo space

bull Ignores food on one side of the plate one side of the page one side of the clock

bullTHIS is the one that we tend to measure

Three Common Types of NeglectPersonal neglect

Attends to only one side of hisher body during ADLs (eg observe ptduring bathing ndash one side or both)

Shaving one side (above) but not the other

ldquoHanging glassesrdquo ndash you take them off pt puts back on hisher glasses

Misjudges body midline in severe cases

Other clues that neglect is present

Neglecting half of objects even when they are in full view of pt

bull ldquoAllocentric neglectrdquo or ldquoObject centered neglectrdquo eg pt ignores left side of a cup even when it is

placed on the right side of hisher body omits text that is on the contralesional side

Extinction

bull Pt can attend to a stimulus coming into visual field from either side

bull However when stimuli come from both sides simultaneously pt will only attend to ipsilesionalstimulus (thus ldquoextinguishingrdquo the contralesionalstimulus)

7

8

9

142021

4

Differential Diagnosis

Homonymous Hemianopsia vs USN

bull Homonymous (having the same name or designation) or standing in the same relation

bull hemi half

bull anopsia blindness

bull Homonymous Hemianopsia visual field loss on the same side of both eyes

Differential Diagnosis

Homonymous Hemianopsia

bull Have client turn head contralesionally they can see a stimulus on the wall or in front of them

bull Client demonstrates insight into visual loss

bull Can scan and perform clinical tests

bull Attempts to actively compensate

USN

bull Have client turn head contralesionally they cannot see stimulus

bull Client may not demonstrate insight into visual loss

bull Will not scan during clinical tests

10

11

12

142021

5

Assessment of NeglectThings to ConsiderSeveral neglect subtypes

Think about the domains you are testing and those that you are missing

Use multimodal assessment methods (at least 3-4 tests when possible

If other impairments exist supplement with real world activities in your assessment strategy

General Behavioral Assessments

Observe the ptrsquos behavior as a ldquofirst lookrdquo

GeneralbullPoor eye contact w people placed on contralesional

sidebull Fails to care for affected side leaves arm in

wheelchairhanging downbullDrops items from affected side and doesnrsquot appear to

notice (eg soap or eating utensil)bullDoes not noticerespond to people andor

conversations on contralesional side

Catherine Bergago Scale (CBS)

10-item checklist

Assesses performance of different daily activities rather than using test situations

Activities that can be associated to all range of spaces (eg shaving the face (personal) eating food from a plate (peripersonal) or colliding

13

14

15

142021

6

Personal Neglect Tests

Comb and Razor TestbullComb right and left side for 30s compact or

razor for 30s bull left = (left strokes) (left + ambiguous +

right strokes) bull (razorcompact case left) + (comb left))

2bullA score lt 035 indicates the presence of left

personal neglect A score gt 035 indicates the absence of left personal neglect

Face washing ndash left versus right side

Peri personal Tests Indented Paragraph Test (Caplan B 1987)

bullPt reads therapist circles omitted phrases as test continues

bullMild neglect-1-9 omissions

bullMod-severe 10+ omissions

bullRandom indentation makes looking left less predictable

Line bisection testbullPlace a mark with a pencil through the center of a

series of horizontal lines Usually a displacement of the bisection mark towards the side of the brain lesion is interpreted as a symptom of neglect

bull The test is scored by measuring the deviation of the bisection from the true center of the line A deviation of more than 6 mm from the midpoint indicates USN

16

17

18

142021

7

Line crossing subtest (Albertrsquos test)bullMax score is 36 lines crossed (18 left 18 right ndash the

four central lines are not scored)

bullPt scored 16 ndash the acceptable range is 34-36

Star cancellationbull Pt scored 18 and crossed 2 letters (K and N)

bull Acceptable range ndash 52-54

bull Recommended in post-stroke guidelines reliable valid

bull Best predictor of USN is point of origin when pt starts task

bull bestrdquo is upper left corner

Extrapersonal tests of neglect

Point to Objects Test (Stone amp Greenwood 1991)

Describe everything in the room

Name or point to objects in room

- Identify number of pictures on wall chairs tables closets shelves within the room

- From patientrsquos reference point determine degree of visual scanning of room

- Score based on number identifiedtotal number of objects

19

20

21

142021

8

Interventions for USN

bull Modifying the Environment or Task

bull Feedback

bull Mental Imagery

bull Providing Therapy (behavioral therapy computer therapy)

bull Providing Meds

bull Providing Something ldquoSpecialrdquo (eg glasses brain stimulation)

Sim

ple

Str

aigh

tfo

rwar

d

Resou

rces Co

st

Aw

aren

ess

of

or

atte

nti

on

to b

od

y sp

ace

Rem

ediatio

n o

f deficits in

po

sition

space o

r orien

tation

Modifying the Environment

bull Bright red duct tape on walls table edges corners on left

bull Left sided cueing devices (eg LED motion sensor lights right)

Behavioral Modification

bull Behavioral cues that remind the pt to remember the left side (right-wwwhabitchangercom)

22

23

24

142021

9

Awareness Training (Tham et al 2002)

Shaping of increased awareness through progressively increased challenges

Begin in activities that are familiar and comfortable

Can be used to look for items in a room while seated pre-ambulation etc

Can be used to remember aspects of a familiar environment

Can be used to ldquostretchrdquo into new unfamiliar environments

1 Agree on a scanning strategy (eg lighthouse)

2 Show pt where item is

3 Have pt perform the scanning task as normal to try and find _________ (eg clock on wall red line on piece of paper)

4 Stop and check flash cards

1 What did I see What did I not see2 Am I remaining focused

3 Did I use the ldquolighthouse beamrdquo or other strategy

5 Try again Cue as needed

6 When pt finds it have pt create a map or write down where it is in ptrsquos environment

7 Use mental imagery to imagine where it is before next attempt

8 Use laptop cameras to tape and play back environment

9 Repeat

Strategies to augment scanning approaches

bull Place an anchor or marker near the targeted item make it smaller or less colorful as training progresses

bull How would pt like to self monitor Cards Journal Self evaluation checklist

bull Scan the entire space

bull Have pt mentally imagine scene

25

26

27

142021

10

TENSParameters

bull Frequency 100 Hz

bull Pulse Duration 100 micros

bull Intensity sensory threshold (pleasant tingling)

bull Applied via two 2x2 in electrodes on posterolateral aspect of neck (lateral to spine) and upper trapezius on neglected side

bull Administered for 15 minutes

bull Evidence Ebrsrcom ldquoThere is moderate evidence that TENS treatments used in conjunction with explorationscanning training results in improvements on tests of neglect reading and writing post strokerdquo

What is apraxia

ldquoDifficulties in executing learned movement sequences beyond limitations that could be explained be weakness lack of coordination sensory deficits sensory loss comprehension of deficits memory or motivationrdquo

(Sabari 2008)

bull Itrsquos not because theyrsquore hemiparetic or weak (ldquohelliponce you get stronger your apraxia will resolvehelliprdquo) Thatrsquos a motor deficit

bull Itrsquos not because they donrsquot know what or where the object is (although it looks like that sometimes)

bull Itrsquos not because they donrsquot remember what the object is (although it looks like that sometimes)

bull Itrsquos not because they canrsquot sense the object (ldquooh he canrsquot feel ithelliprdquo)

It is because there is damage to the praxis system

28

29

30

142021

11

Clinical Associations

31

32

33

142021

12

Using familiar objects incorrectly

bull Dressing apraxia ndash no such thing

bull Tool apraxia ndash one in the same

34

35

36

142021

13

How Do I Measure It ndash p 10

37

38

39

142021

14

40

41

42

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 2: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

2

Why Does Neglect Usually Occur on the L Side

(A) Both parietal lobes work together ndash R controls BOTH sides

(B) R sided lesion rarr No bi-directional control L only ldquoseesrdquo R side

(C) L sided lesion rarr No Problem

Types of Neglect

Three Common Neglect Types

bull Extrapersonal neglect behaviors occurring in ldquolargerrdquo or ldquofarrdquo space

bull Large table Hallway shopping area

bullPt collides into surroundings or is reported to do so by care partner

bullBruising discoloring andor rippedfrayed clothing on the contralateral UE or LE

bullPt may think it is ldquonot a big dealrdquo or ldquojust part of the strokerdquo

4

5

6

142021

3

Three Common Types of Neglect (contrsquod)

Peripersonal neglectbehaviors occur in ldquonear personrdquo space

bull Ignores food on one side of the plate one side of the page one side of the clock

bullTHIS is the one that we tend to measure

Three Common Types of NeglectPersonal neglect

Attends to only one side of hisher body during ADLs (eg observe ptduring bathing ndash one side or both)

Shaving one side (above) but not the other

ldquoHanging glassesrdquo ndash you take them off pt puts back on hisher glasses

Misjudges body midline in severe cases

Other clues that neglect is present

Neglecting half of objects even when they are in full view of pt

bull ldquoAllocentric neglectrdquo or ldquoObject centered neglectrdquo eg pt ignores left side of a cup even when it is

placed on the right side of hisher body omits text that is on the contralesional side

Extinction

bull Pt can attend to a stimulus coming into visual field from either side

bull However when stimuli come from both sides simultaneously pt will only attend to ipsilesionalstimulus (thus ldquoextinguishingrdquo the contralesionalstimulus)

7

8

9

142021

4

Differential Diagnosis

Homonymous Hemianopsia vs USN

bull Homonymous (having the same name or designation) or standing in the same relation

bull hemi half

bull anopsia blindness

bull Homonymous Hemianopsia visual field loss on the same side of both eyes

Differential Diagnosis

Homonymous Hemianopsia

bull Have client turn head contralesionally they can see a stimulus on the wall or in front of them

bull Client demonstrates insight into visual loss

bull Can scan and perform clinical tests

bull Attempts to actively compensate

USN

bull Have client turn head contralesionally they cannot see stimulus

bull Client may not demonstrate insight into visual loss

bull Will not scan during clinical tests

10

11

12

142021

5

Assessment of NeglectThings to ConsiderSeveral neglect subtypes

Think about the domains you are testing and those that you are missing

Use multimodal assessment methods (at least 3-4 tests when possible

If other impairments exist supplement with real world activities in your assessment strategy

General Behavioral Assessments

Observe the ptrsquos behavior as a ldquofirst lookrdquo

GeneralbullPoor eye contact w people placed on contralesional

sidebull Fails to care for affected side leaves arm in

wheelchairhanging downbullDrops items from affected side and doesnrsquot appear to

notice (eg soap or eating utensil)bullDoes not noticerespond to people andor

conversations on contralesional side

Catherine Bergago Scale (CBS)

10-item checklist

Assesses performance of different daily activities rather than using test situations

Activities that can be associated to all range of spaces (eg shaving the face (personal) eating food from a plate (peripersonal) or colliding

13

14

15

142021

6

Personal Neglect Tests

Comb and Razor TestbullComb right and left side for 30s compact or

razor for 30s bull left = (left strokes) (left + ambiguous +

right strokes) bull (razorcompact case left) + (comb left))

2bullA score lt 035 indicates the presence of left

personal neglect A score gt 035 indicates the absence of left personal neglect

Face washing ndash left versus right side

Peri personal Tests Indented Paragraph Test (Caplan B 1987)

bullPt reads therapist circles omitted phrases as test continues

bullMild neglect-1-9 omissions

bullMod-severe 10+ omissions

bullRandom indentation makes looking left less predictable

Line bisection testbullPlace a mark with a pencil through the center of a

series of horizontal lines Usually a displacement of the bisection mark towards the side of the brain lesion is interpreted as a symptom of neglect

bull The test is scored by measuring the deviation of the bisection from the true center of the line A deviation of more than 6 mm from the midpoint indicates USN

16

17

18

142021

7

Line crossing subtest (Albertrsquos test)bullMax score is 36 lines crossed (18 left 18 right ndash the

four central lines are not scored)

bullPt scored 16 ndash the acceptable range is 34-36

Star cancellationbull Pt scored 18 and crossed 2 letters (K and N)

bull Acceptable range ndash 52-54

bull Recommended in post-stroke guidelines reliable valid

bull Best predictor of USN is point of origin when pt starts task

bull bestrdquo is upper left corner

Extrapersonal tests of neglect

Point to Objects Test (Stone amp Greenwood 1991)

Describe everything in the room

Name or point to objects in room

- Identify number of pictures on wall chairs tables closets shelves within the room

- From patientrsquos reference point determine degree of visual scanning of room

- Score based on number identifiedtotal number of objects

19

20

21

142021

8

Interventions for USN

bull Modifying the Environment or Task

bull Feedback

bull Mental Imagery

bull Providing Therapy (behavioral therapy computer therapy)

bull Providing Meds

bull Providing Something ldquoSpecialrdquo (eg glasses brain stimulation)

Sim

ple

Str

aigh

tfo

rwar

d

Resou

rces Co

st

Aw

aren

ess

of

or

atte

nti

on

to b

od

y sp

ace

Rem

ediatio

n o

f deficits in

po

sition

space o

r orien

tation

Modifying the Environment

bull Bright red duct tape on walls table edges corners on left

bull Left sided cueing devices (eg LED motion sensor lights right)

Behavioral Modification

bull Behavioral cues that remind the pt to remember the left side (right-wwwhabitchangercom)

22

23

24

142021

9

Awareness Training (Tham et al 2002)

Shaping of increased awareness through progressively increased challenges

Begin in activities that are familiar and comfortable

Can be used to look for items in a room while seated pre-ambulation etc

Can be used to remember aspects of a familiar environment

Can be used to ldquostretchrdquo into new unfamiliar environments

1 Agree on a scanning strategy (eg lighthouse)

2 Show pt where item is

3 Have pt perform the scanning task as normal to try and find _________ (eg clock on wall red line on piece of paper)

4 Stop and check flash cards

1 What did I see What did I not see2 Am I remaining focused

3 Did I use the ldquolighthouse beamrdquo or other strategy

5 Try again Cue as needed

6 When pt finds it have pt create a map or write down where it is in ptrsquos environment

7 Use mental imagery to imagine where it is before next attempt

8 Use laptop cameras to tape and play back environment

9 Repeat

Strategies to augment scanning approaches

bull Place an anchor or marker near the targeted item make it smaller or less colorful as training progresses

bull How would pt like to self monitor Cards Journal Self evaluation checklist

bull Scan the entire space

bull Have pt mentally imagine scene

25

26

27

142021

10

TENSParameters

bull Frequency 100 Hz

bull Pulse Duration 100 micros

bull Intensity sensory threshold (pleasant tingling)

bull Applied via two 2x2 in electrodes on posterolateral aspect of neck (lateral to spine) and upper trapezius on neglected side

bull Administered for 15 minutes

bull Evidence Ebrsrcom ldquoThere is moderate evidence that TENS treatments used in conjunction with explorationscanning training results in improvements on tests of neglect reading and writing post strokerdquo

What is apraxia

ldquoDifficulties in executing learned movement sequences beyond limitations that could be explained be weakness lack of coordination sensory deficits sensory loss comprehension of deficits memory or motivationrdquo

(Sabari 2008)

bull Itrsquos not because theyrsquore hemiparetic or weak (ldquohelliponce you get stronger your apraxia will resolvehelliprdquo) Thatrsquos a motor deficit

bull Itrsquos not because they donrsquot know what or where the object is (although it looks like that sometimes)

bull Itrsquos not because they donrsquot remember what the object is (although it looks like that sometimes)

bull Itrsquos not because they canrsquot sense the object (ldquooh he canrsquot feel ithelliprdquo)

It is because there is damage to the praxis system

28

29

30

142021

11

Clinical Associations

31

32

33

142021

12

Using familiar objects incorrectly

bull Dressing apraxia ndash no such thing

bull Tool apraxia ndash one in the same

34

35

36

142021

13

How Do I Measure It ndash p 10

37

38

39

142021

14

40

41

42

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 3: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

3

Three Common Types of Neglect (contrsquod)

Peripersonal neglectbehaviors occur in ldquonear personrdquo space

bull Ignores food on one side of the plate one side of the page one side of the clock

bullTHIS is the one that we tend to measure

Three Common Types of NeglectPersonal neglect

Attends to only one side of hisher body during ADLs (eg observe ptduring bathing ndash one side or both)

Shaving one side (above) but not the other

ldquoHanging glassesrdquo ndash you take them off pt puts back on hisher glasses

Misjudges body midline in severe cases

Other clues that neglect is present

Neglecting half of objects even when they are in full view of pt

bull ldquoAllocentric neglectrdquo or ldquoObject centered neglectrdquo eg pt ignores left side of a cup even when it is

placed on the right side of hisher body omits text that is on the contralesional side

Extinction

bull Pt can attend to a stimulus coming into visual field from either side

bull However when stimuli come from both sides simultaneously pt will only attend to ipsilesionalstimulus (thus ldquoextinguishingrdquo the contralesionalstimulus)

7

8

9

142021

4

Differential Diagnosis

Homonymous Hemianopsia vs USN

bull Homonymous (having the same name or designation) or standing in the same relation

bull hemi half

bull anopsia blindness

bull Homonymous Hemianopsia visual field loss on the same side of both eyes

Differential Diagnosis

Homonymous Hemianopsia

bull Have client turn head contralesionally they can see a stimulus on the wall or in front of them

bull Client demonstrates insight into visual loss

bull Can scan and perform clinical tests

bull Attempts to actively compensate

USN

bull Have client turn head contralesionally they cannot see stimulus

bull Client may not demonstrate insight into visual loss

bull Will not scan during clinical tests

10

11

12

142021

5

Assessment of NeglectThings to ConsiderSeveral neglect subtypes

Think about the domains you are testing and those that you are missing

Use multimodal assessment methods (at least 3-4 tests when possible

If other impairments exist supplement with real world activities in your assessment strategy

General Behavioral Assessments

Observe the ptrsquos behavior as a ldquofirst lookrdquo

GeneralbullPoor eye contact w people placed on contralesional

sidebull Fails to care for affected side leaves arm in

wheelchairhanging downbullDrops items from affected side and doesnrsquot appear to

notice (eg soap or eating utensil)bullDoes not noticerespond to people andor

conversations on contralesional side

Catherine Bergago Scale (CBS)

10-item checklist

Assesses performance of different daily activities rather than using test situations

Activities that can be associated to all range of spaces (eg shaving the face (personal) eating food from a plate (peripersonal) or colliding

13

14

15

142021

6

Personal Neglect Tests

Comb and Razor TestbullComb right and left side for 30s compact or

razor for 30s bull left = (left strokes) (left + ambiguous +

right strokes) bull (razorcompact case left) + (comb left))

2bullA score lt 035 indicates the presence of left

personal neglect A score gt 035 indicates the absence of left personal neglect

Face washing ndash left versus right side

Peri personal Tests Indented Paragraph Test (Caplan B 1987)

bullPt reads therapist circles omitted phrases as test continues

bullMild neglect-1-9 omissions

bullMod-severe 10+ omissions

bullRandom indentation makes looking left less predictable

Line bisection testbullPlace a mark with a pencil through the center of a

series of horizontal lines Usually a displacement of the bisection mark towards the side of the brain lesion is interpreted as a symptom of neglect

bull The test is scored by measuring the deviation of the bisection from the true center of the line A deviation of more than 6 mm from the midpoint indicates USN

16

17

18

142021

7

Line crossing subtest (Albertrsquos test)bullMax score is 36 lines crossed (18 left 18 right ndash the

four central lines are not scored)

bullPt scored 16 ndash the acceptable range is 34-36

Star cancellationbull Pt scored 18 and crossed 2 letters (K and N)

bull Acceptable range ndash 52-54

bull Recommended in post-stroke guidelines reliable valid

bull Best predictor of USN is point of origin when pt starts task

bull bestrdquo is upper left corner

Extrapersonal tests of neglect

Point to Objects Test (Stone amp Greenwood 1991)

Describe everything in the room

Name or point to objects in room

- Identify number of pictures on wall chairs tables closets shelves within the room

- From patientrsquos reference point determine degree of visual scanning of room

- Score based on number identifiedtotal number of objects

19

20

21

142021

8

Interventions for USN

bull Modifying the Environment or Task

bull Feedback

bull Mental Imagery

bull Providing Therapy (behavioral therapy computer therapy)

bull Providing Meds

bull Providing Something ldquoSpecialrdquo (eg glasses brain stimulation)

Sim

ple

Str

aigh

tfo

rwar

d

Resou

rces Co

st

Aw

aren

ess

of

or

atte

nti

on

to b

od

y sp

ace

Rem

ediatio

n o

f deficits in

po

sition

space o

r orien

tation

Modifying the Environment

bull Bright red duct tape on walls table edges corners on left

bull Left sided cueing devices (eg LED motion sensor lights right)

Behavioral Modification

bull Behavioral cues that remind the pt to remember the left side (right-wwwhabitchangercom)

22

23

24

142021

9

Awareness Training (Tham et al 2002)

Shaping of increased awareness through progressively increased challenges

Begin in activities that are familiar and comfortable

Can be used to look for items in a room while seated pre-ambulation etc

Can be used to remember aspects of a familiar environment

Can be used to ldquostretchrdquo into new unfamiliar environments

1 Agree on a scanning strategy (eg lighthouse)

2 Show pt where item is

3 Have pt perform the scanning task as normal to try and find _________ (eg clock on wall red line on piece of paper)

4 Stop and check flash cards

1 What did I see What did I not see2 Am I remaining focused

3 Did I use the ldquolighthouse beamrdquo or other strategy

5 Try again Cue as needed

6 When pt finds it have pt create a map or write down where it is in ptrsquos environment

7 Use mental imagery to imagine where it is before next attempt

8 Use laptop cameras to tape and play back environment

9 Repeat

Strategies to augment scanning approaches

bull Place an anchor or marker near the targeted item make it smaller or less colorful as training progresses

bull How would pt like to self monitor Cards Journal Self evaluation checklist

bull Scan the entire space

bull Have pt mentally imagine scene

25

26

27

142021

10

TENSParameters

bull Frequency 100 Hz

bull Pulse Duration 100 micros

bull Intensity sensory threshold (pleasant tingling)

bull Applied via two 2x2 in electrodes on posterolateral aspect of neck (lateral to spine) and upper trapezius on neglected side

bull Administered for 15 minutes

bull Evidence Ebrsrcom ldquoThere is moderate evidence that TENS treatments used in conjunction with explorationscanning training results in improvements on tests of neglect reading and writing post strokerdquo

What is apraxia

ldquoDifficulties in executing learned movement sequences beyond limitations that could be explained be weakness lack of coordination sensory deficits sensory loss comprehension of deficits memory or motivationrdquo

(Sabari 2008)

bull Itrsquos not because theyrsquore hemiparetic or weak (ldquohelliponce you get stronger your apraxia will resolvehelliprdquo) Thatrsquos a motor deficit

bull Itrsquos not because they donrsquot know what or where the object is (although it looks like that sometimes)

bull Itrsquos not because they donrsquot remember what the object is (although it looks like that sometimes)

bull Itrsquos not because they canrsquot sense the object (ldquooh he canrsquot feel ithelliprdquo)

It is because there is damage to the praxis system

28

29

30

142021

11

Clinical Associations

31

32

33

142021

12

Using familiar objects incorrectly

bull Dressing apraxia ndash no such thing

bull Tool apraxia ndash one in the same

34

35

36

142021

13

How Do I Measure It ndash p 10

37

38

39

142021

14

40

41

42

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 4: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

4

Differential Diagnosis

Homonymous Hemianopsia vs USN

bull Homonymous (having the same name or designation) or standing in the same relation

bull hemi half

bull anopsia blindness

bull Homonymous Hemianopsia visual field loss on the same side of both eyes

Differential Diagnosis

Homonymous Hemianopsia

bull Have client turn head contralesionally they can see a stimulus on the wall or in front of them

bull Client demonstrates insight into visual loss

bull Can scan and perform clinical tests

bull Attempts to actively compensate

USN

bull Have client turn head contralesionally they cannot see stimulus

bull Client may not demonstrate insight into visual loss

bull Will not scan during clinical tests

10

11

12

142021

5

Assessment of NeglectThings to ConsiderSeveral neglect subtypes

Think about the domains you are testing and those that you are missing

Use multimodal assessment methods (at least 3-4 tests when possible

If other impairments exist supplement with real world activities in your assessment strategy

General Behavioral Assessments

Observe the ptrsquos behavior as a ldquofirst lookrdquo

GeneralbullPoor eye contact w people placed on contralesional

sidebull Fails to care for affected side leaves arm in

wheelchairhanging downbullDrops items from affected side and doesnrsquot appear to

notice (eg soap or eating utensil)bullDoes not noticerespond to people andor

conversations on contralesional side

Catherine Bergago Scale (CBS)

10-item checklist

Assesses performance of different daily activities rather than using test situations

Activities that can be associated to all range of spaces (eg shaving the face (personal) eating food from a plate (peripersonal) or colliding

13

14

15

142021

6

Personal Neglect Tests

Comb and Razor TestbullComb right and left side for 30s compact or

razor for 30s bull left = (left strokes) (left + ambiguous +

right strokes) bull (razorcompact case left) + (comb left))

2bullA score lt 035 indicates the presence of left

personal neglect A score gt 035 indicates the absence of left personal neglect

Face washing ndash left versus right side

Peri personal Tests Indented Paragraph Test (Caplan B 1987)

bullPt reads therapist circles omitted phrases as test continues

bullMild neglect-1-9 omissions

bullMod-severe 10+ omissions

bullRandom indentation makes looking left less predictable

Line bisection testbullPlace a mark with a pencil through the center of a

series of horizontal lines Usually a displacement of the bisection mark towards the side of the brain lesion is interpreted as a symptom of neglect

bull The test is scored by measuring the deviation of the bisection from the true center of the line A deviation of more than 6 mm from the midpoint indicates USN

16

17

18

142021

7

Line crossing subtest (Albertrsquos test)bullMax score is 36 lines crossed (18 left 18 right ndash the

four central lines are not scored)

bullPt scored 16 ndash the acceptable range is 34-36

Star cancellationbull Pt scored 18 and crossed 2 letters (K and N)

bull Acceptable range ndash 52-54

bull Recommended in post-stroke guidelines reliable valid

bull Best predictor of USN is point of origin when pt starts task

bull bestrdquo is upper left corner

Extrapersonal tests of neglect

Point to Objects Test (Stone amp Greenwood 1991)

Describe everything in the room

Name or point to objects in room

- Identify number of pictures on wall chairs tables closets shelves within the room

- From patientrsquos reference point determine degree of visual scanning of room

- Score based on number identifiedtotal number of objects

19

20

21

142021

8

Interventions for USN

bull Modifying the Environment or Task

bull Feedback

bull Mental Imagery

bull Providing Therapy (behavioral therapy computer therapy)

bull Providing Meds

bull Providing Something ldquoSpecialrdquo (eg glasses brain stimulation)

Sim

ple

Str

aigh

tfo

rwar

d

Resou

rces Co

st

Aw

aren

ess

of

or

atte

nti

on

to b

od

y sp

ace

Rem

ediatio

n o

f deficits in

po

sition

space o

r orien

tation

Modifying the Environment

bull Bright red duct tape on walls table edges corners on left

bull Left sided cueing devices (eg LED motion sensor lights right)

Behavioral Modification

bull Behavioral cues that remind the pt to remember the left side (right-wwwhabitchangercom)

22

23

24

142021

9

Awareness Training (Tham et al 2002)

Shaping of increased awareness through progressively increased challenges

Begin in activities that are familiar and comfortable

Can be used to look for items in a room while seated pre-ambulation etc

Can be used to remember aspects of a familiar environment

Can be used to ldquostretchrdquo into new unfamiliar environments

1 Agree on a scanning strategy (eg lighthouse)

2 Show pt where item is

3 Have pt perform the scanning task as normal to try and find _________ (eg clock on wall red line on piece of paper)

4 Stop and check flash cards

1 What did I see What did I not see2 Am I remaining focused

3 Did I use the ldquolighthouse beamrdquo or other strategy

5 Try again Cue as needed

6 When pt finds it have pt create a map or write down where it is in ptrsquos environment

7 Use mental imagery to imagine where it is before next attempt

8 Use laptop cameras to tape and play back environment

9 Repeat

Strategies to augment scanning approaches

bull Place an anchor or marker near the targeted item make it smaller or less colorful as training progresses

bull How would pt like to self monitor Cards Journal Self evaluation checklist

bull Scan the entire space

bull Have pt mentally imagine scene

25

26

27

142021

10

TENSParameters

bull Frequency 100 Hz

bull Pulse Duration 100 micros

bull Intensity sensory threshold (pleasant tingling)

bull Applied via two 2x2 in electrodes on posterolateral aspect of neck (lateral to spine) and upper trapezius on neglected side

bull Administered for 15 minutes

bull Evidence Ebrsrcom ldquoThere is moderate evidence that TENS treatments used in conjunction with explorationscanning training results in improvements on tests of neglect reading and writing post strokerdquo

What is apraxia

ldquoDifficulties in executing learned movement sequences beyond limitations that could be explained be weakness lack of coordination sensory deficits sensory loss comprehension of deficits memory or motivationrdquo

(Sabari 2008)

bull Itrsquos not because theyrsquore hemiparetic or weak (ldquohelliponce you get stronger your apraxia will resolvehelliprdquo) Thatrsquos a motor deficit

bull Itrsquos not because they donrsquot know what or where the object is (although it looks like that sometimes)

bull Itrsquos not because they donrsquot remember what the object is (although it looks like that sometimes)

bull Itrsquos not because they canrsquot sense the object (ldquooh he canrsquot feel ithelliprdquo)

It is because there is damage to the praxis system

28

29

30

142021

11

Clinical Associations

31

32

33

142021

12

Using familiar objects incorrectly

bull Dressing apraxia ndash no such thing

bull Tool apraxia ndash one in the same

34

35

36

142021

13

How Do I Measure It ndash p 10

37

38

39

142021

14

40

41

42

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 5: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

5

Assessment of NeglectThings to ConsiderSeveral neglect subtypes

Think about the domains you are testing and those that you are missing

Use multimodal assessment methods (at least 3-4 tests when possible

If other impairments exist supplement with real world activities in your assessment strategy

General Behavioral Assessments

Observe the ptrsquos behavior as a ldquofirst lookrdquo

GeneralbullPoor eye contact w people placed on contralesional

sidebull Fails to care for affected side leaves arm in

wheelchairhanging downbullDrops items from affected side and doesnrsquot appear to

notice (eg soap or eating utensil)bullDoes not noticerespond to people andor

conversations on contralesional side

Catherine Bergago Scale (CBS)

10-item checklist

Assesses performance of different daily activities rather than using test situations

Activities that can be associated to all range of spaces (eg shaving the face (personal) eating food from a plate (peripersonal) or colliding

13

14

15

142021

6

Personal Neglect Tests

Comb and Razor TestbullComb right and left side for 30s compact or

razor for 30s bull left = (left strokes) (left + ambiguous +

right strokes) bull (razorcompact case left) + (comb left))

2bullA score lt 035 indicates the presence of left

personal neglect A score gt 035 indicates the absence of left personal neglect

Face washing ndash left versus right side

Peri personal Tests Indented Paragraph Test (Caplan B 1987)

bullPt reads therapist circles omitted phrases as test continues

bullMild neglect-1-9 omissions

bullMod-severe 10+ omissions

bullRandom indentation makes looking left less predictable

Line bisection testbullPlace a mark with a pencil through the center of a

series of horizontal lines Usually a displacement of the bisection mark towards the side of the brain lesion is interpreted as a symptom of neglect

bull The test is scored by measuring the deviation of the bisection from the true center of the line A deviation of more than 6 mm from the midpoint indicates USN

16

17

18

142021

7

Line crossing subtest (Albertrsquos test)bullMax score is 36 lines crossed (18 left 18 right ndash the

four central lines are not scored)

bullPt scored 16 ndash the acceptable range is 34-36

Star cancellationbull Pt scored 18 and crossed 2 letters (K and N)

bull Acceptable range ndash 52-54

bull Recommended in post-stroke guidelines reliable valid

bull Best predictor of USN is point of origin when pt starts task

bull bestrdquo is upper left corner

Extrapersonal tests of neglect

Point to Objects Test (Stone amp Greenwood 1991)

Describe everything in the room

Name or point to objects in room

- Identify number of pictures on wall chairs tables closets shelves within the room

- From patientrsquos reference point determine degree of visual scanning of room

- Score based on number identifiedtotal number of objects

19

20

21

142021

8

Interventions for USN

bull Modifying the Environment or Task

bull Feedback

bull Mental Imagery

bull Providing Therapy (behavioral therapy computer therapy)

bull Providing Meds

bull Providing Something ldquoSpecialrdquo (eg glasses brain stimulation)

Sim

ple

Str

aigh

tfo

rwar

d

Resou

rces Co

st

Aw

aren

ess

of

or

atte

nti

on

to b

od

y sp

ace

Rem

ediatio

n o

f deficits in

po

sition

space o

r orien

tation

Modifying the Environment

bull Bright red duct tape on walls table edges corners on left

bull Left sided cueing devices (eg LED motion sensor lights right)

Behavioral Modification

bull Behavioral cues that remind the pt to remember the left side (right-wwwhabitchangercom)

22

23

24

142021

9

Awareness Training (Tham et al 2002)

Shaping of increased awareness through progressively increased challenges

Begin in activities that are familiar and comfortable

Can be used to look for items in a room while seated pre-ambulation etc

Can be used to remember aspects of a familiar environment

Can be used to ldquostretchrdquo into new unfamiliar environments

1 Agree on a scanning strategy (eg lighthouse)

2 Show pt where item is

3 Have pt perform the scanning task as normal to try and find _________ (eg clock on wall red line on piece of paper)

4 Stop and check flash cards

1 What did I see What did I not see2 Am I remaining focused

3 Did I use the ldquolighthouse beamrdquo or other strategy

5 Try again Cue as needed

6 When pt finds it have pt create a map or write down where it is in ptrsquos environment

7 Use mental imagery to imagine where it is before next attempt

8 Use laptop cameras to tape and play back environment

9 Repeat

Strategies to augment scanning approaches

bull Place an anchor or marker near the targeted item make it smaller or less colorful as training progresses

bull How would pt like to self monitor Cards Journal Self evaluation checklist

bull Scan the entire space

bull Have pt mentally imagine scene

25

26

27

142021

10

TENSParameters

bull Frequency 100 Hz

bull Pulse Duration 100 micros

bull Intensity sensory threshold (pleasant tingling)

bull Applied via two 2x2 in electrodes on posterolateral aspect of neck (lateral to spine) and upper trapezius on neglected side

bull Administered for 15 minutes

bull Evidence Ebrsrcom ldquoThere is moderate evidence that TENS treatments used in conjunction with explorationscanning training results in improvements on tests of neglect reading and writing post strokerdquo

What is apraxia

ldquoDifficulties in executing learned movement sequences beyond limitations that could be explained be weakness lack of coordination sensory deficits sensory loss comprehension of deficits memory or motivationrdquo

(Sabari 2008)

bull Itrsquos not because theyrsquore hemiparetic or weak (ldquohelliponce you get stronger your apraxia will resolvehelliprdquo) Thatrsquos a motor deficit

bull Itrsquos not because they donrsquot know what or where the object is (although it looks like that sometimes)

bull Itrsquos not because they donrsquot remember what the object is (although it looks like that sometimes)

bull Itrsquos not because they canrsquot sense the object (ldquooh he canrsquot feel ithelliprdquo)

It is because there is damage to the praxis system

28

29

30

142021

11

Clinical Associations

31

32

33

142021

12

Using familiar objects incorrectly

bull Dressing apraxia ndash no such thing

bull Tool apraxia ndash one in the same

34

35

36

142021

13

How Do I Measure It ndash p 10

37

38

39

142021

14

40

41

42

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 6: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

6

Personal Neglect Tests

Comb and Razor TestbullComb right and left side for 30s compact or

razor for 30s bull left = (left strokes) (left + ambiguous +

right strokes) bull (razorcompact case left) + (comb left))

2bullA score lt 035 indicates the presence of left

personal neglect A score gt 035 indicates the absence of left personal neglect

Face washing ndash left versus right side

Peri personal Tests Indented Paragraph Test (Caplan B 1987)

bullPt reads therapist circles omitted phrases as test continues

bullMild neglect-1-9 omissions

bullMod-severe 10+ omissions

bullRandom indentation makes looking left less predictable

Line bisection testbullPlace a mark with a pencil through the center of a

series of horizontal lines Usually a displacement of the bisection mark towards the side of the brain lesion is interpreted as a symptom of neglect

bull The test is scored by measuring the deviation of the bisection from the true center of the line A deviation of more than 6 mm from the midpoint indicates USN

16

17

18

142021

7

Line crossing subtest (Albertrsquos test)bullMax score is 36 lines crossed (18 left 18 right ndash the

four central lines are not scored)

bullPt scored 16 ndash the acceptable range is 34-36

Star cancellationbull Pt scored 18 and crossed 2 letters (K and N)

bull Acceptable range ndash 52-54

bull Recommended in post-stroke guidelines reliable valid

bull Best predictor of USN is point of origin when pt starts task

bull bestrdquo is upper left corner

Extrapersonal tests of neglect

Point to Objects Test (Stone amp Greenwood 1991)

Describe everything in the room

Name or point to objects in room

- Identify number of pictures on wall chairs tables closets shelves within the room

- From patientrsquos reference point determine degree of visual scanning of room

- Score based on number identifiedtotal number of objects

19

20

21

142021

8

Interventions for USN

bull Modifying the Environment or Task

bull Feedback

bull Mental Imagery

bull Providing Therapy (behavioral therapy computer therapy)

bull Providing Meds

bull Providing Something ldquoSpecialrdquo (eg glasses brain stimulation)

Sim

ple

Str

aigh

tfo

rwar

d

Resou

rces Co

st

Aw

aren

ess

of

or

atte

nti

on

to b

od

y sp

ace

Rem

ediatio

n o

f deficits in

po

sition

space o

r orien

tation

Modifying the Environment

bull Bright red duct tape on walls table edges corners on left

bull Left sided cueing devices (eg LED motion sensor lights right)

Behavioral Modification

bull Behavioral cues that remind the pt to remember the left side (right-wwwhabitchangercom)

22

23

24

142021

9

Awareness Training (Tham et al 2002)

Shaping of increased awareness through progressively increased challenges

Begin in activities that are familiar and comfortable

Can be used to look for items in a room while seated pre-ambulation etc

Can be used to remember aspects of a familiar environment

Can be used to ldquostretchrdquo into new unfamiliar environments

1 Agree on a scanning strategy (eg lighthouse)

2 Show pt where item is

3 Have pt perform the scanning task as normal to try and find _________ (eg clock on wall red line on piece of paper)

4 Stop and check flash cards

1 What did I see What did I not see2 Am I remaining focused

3 Did I use the ldquolighthouse beamrdquo or other strategy

5 Try again Cue as needed

6 When pt finds it have pt create a map or write down where it is in ptrsquos environment

7 Use mental imagery to imagine where it is before next attempt

8 Use laptop cameras to tape and play back environment

9 Repeat

Strategies to augment scanning approaches

bull Place an anchor or marker near the targeted item make it smaller or less colorful as training progresses

bull How would pt like to self monitor Cards Journal Self evaluation checklist

bull Scan the entire space

bull Have pt mentally imagine scene

25

26

27

142021

10

TENSParameters

bull Frequency 100 Hz

bull Pulse Duration 100 micros

bull Intensity sensory threshold (pleasant tingling)

bull Applied via two 2x2 in electrodes on posterolateral aspect of neck (lateral to spine) and upper trapezius on neglected side

bull Administered for 15 minutes

bull Evidence Ebrsrcom ldquoThere is moderate evidence that TENS treatments used in conjunction with explorationscanning training results in improvements on tests of neglect reading and writing post strokerdquo

What is apraxia

ldquoDifficulties in executing learned movement sequences beyond limitations that could be explained be weakness lack of coordination sensory deficits sensory loss comprehension of deficits memory or motivationrdquo

(Sabari 2008)

bull Itrsquos not because theyrsquore hemiparetic or weak (ldquohelliponce you get stronger your apraxia will resolvehelliprdquo) Thatrsquos a motor deficit

bull Itrsquos not because they donrsquot know what or where the object is (although it looks like that sometimes)

bull Itrsquos not because they donrsquot remember what the object is (although it looks like that sometimes)

bull Itrsquos not because they canrsquot sense the object (ldquooh he canrsquot feel ithelliprdquo)

It is because there is damage to the praxis system

28

29

30

142021

11

Clinical Associations

31

32

33

142021

12

Using familiar objects incorrectly

bull Dressing apraxia ndash no such thing

bull Tool apraxia ndash one in the same

34

35

36

142021

13

How Do I Measure It ndash p 10

37

38

39

142021

14

40

41

42

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 7: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

7

Line crossing subtest (Albertrsquos test)bullMax score is 36 lines crossed (18 left 18 right ndash the

four central lines are not scored)

bullPt scored 16 ndash the acceptable range is 34-36

Star cancellationbull Pt scored 18 and crossed 2 letters (K and N)

bull Acceptable range ndash 52-54

bull Recommended in post-stroke guidelines reliable valid

bull Best predictor of USN is point of origin when pt starts task

bull bestrdquo is upper left corner

Extrapersonal tests of neglect

Point to Objects Test (Stone amp Greenwood 1991)

Describe everything in the room

Name or point to objects in room

- Identify number of pictures on wall chairs tables closets shelves within the room

- From patientrsquos reference point determine degree of visual scanning of room

- Score based on number identifiedtotal number of objects

19

20

21

142021

8

Interventions for USN

bull Modifying the Environment or Task

bull Feedback

bull Mental Imagery

bull Providing Therapy (behavioral therapy computer therapy)

bull Providing Meds

bull Providing Something ldquoSpecialrdquo (eg glasses brain stimulation)

Sim

ple

Str

aigh

tfo

rwar

d

Resou

rces Co

st

Aw

aren

ess

of

or

atte

nti

on

to b

od

y sp

ace

Rem

ediatio

n o

f deficits in

po

sition

space o

r orien

tation

Modifying the Environment

bull Bright red duct tape on walls table edges corners on left

bull Left sided cueing devices (eg LED motion sensor lights right)

Behavioral Modification

bull Behavioral cues that remind the pt to remember the left side (right-wwwhabitchangercom)

22

23

24

142021

9

Awareness Training (Tham et al 2002)

Shaping of increased awareness through progressively increased challenges

Begin in activities that are familiar and comfortable

Can be used to look for items in a room while seated pre-ambulation etc

Can be used to remember aspects of a familiar environment

Can be used to ldquostretchrdquo into new unfamiliar environments

1 Agree on a scanning strategy (eg lighthouse)

2 Show pt where item is

3 Have pt perform the scanning task as normal to try and find _________ (eg clock on wall red line on piece of paper)

4 Stop and check flash cards

1 What did I see What did I not see2 Am I remaining focused

3 Did I use the ldquolighthouse beamrdquo or other strategy

5 Try again Cue as needed

6 When pt finds it have pt create a map or write down where it is in ptrsquos environment

7 Use mental imagery to imagine where it is before next attempt

8 Use laptop cameras to tape and play back environment

9 Repeat

Strategies to augment scanning approaches

bull Place an anchor or marker near the targeted item make it smaller or less colorful as training progresses

bull How would pt like to self monitor Cards Journal Self evaluation checklist

bull Scan the entire space

bull Have pt mentally imagine scene

25

26

27

142021

10

TENSParameters

bull Frequency 100 Hz

bull Pulse Duration 100 micros

bull Intensity sensory threshold (pleasant tingling)

bull Applied via two 2x2 in electrodes on posterolateral aspect of neck (lateral to spine) and upper trapezius on neglected side

bull Administered for 15 minutes

bull Evidence Ebrsrcom ldquoThere is moderate evidence that TENS treatments used in conjunction with explorationscanning training results in improvements on tests of neglect reading and writing post strokerdquo

What is apraxia

ldquoDifficulties in executing learned movement sequences beyond limitations that could be explained be weakness lack of coordination sensory deficits sensory loss comprehension of deficits memory or motivationrdquo

(Sabari 2008)

bull Itrsquos not because theyrsquore hemiparetic or weak (ldquohelliponce you get stronger your apraxia will resolvehelliprdquo) Thatrsquos a motor deficit

bull Itrsquos not because they donrsquot know what or where the object is (although it looks like that sometimes)

bull Itrsquos not because they donrsquot remember what the object is (although it looks like that sometimes)

bull Itrsquos not because they canrsquot sense the object (ldquooh he canrsquot feel ithelliprdquo)

It is because there is damage to the praxis system

28

29

30

142021

11

Clinical Associations

31

32

33

142021

12

Using familiar objects incorrectly

bull Dressing apraxia ndash no such thing

bull Tool apraxia ndash one in the same

34

35

36

142021

13

How Do I Measure It ndash p 10

37

38

39

142021

14

40

41

42

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 8: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

8

Interventions for USN

bull Modifying the Environment or Task

bull Feedback

bull Mental Imagery

bull Providing Therapy (behavioral therapy computer therapy)

bull Providing Meds

bull Providing Something ldquoSpecialrdquo (eg glasses brain stimulation)

Sim

ple

Str

aigh

tfo

rwar

d

Resou

rces Co

st

Aw

aren

ess

of

or

atte

nti

on

to b

od

y sp

ace

Rem

ediatio

n o

f deficits in

po

sition

space o

r orien

tation

Modifying the Environment

bull Bright red duct tape on walls table edges corners on left

bull Left sided cueing devices (eg LED motion sensor lights right)

Behavioral Modification

bull Behavioral cues that remind the pt to remember the left side (right-wwwhabitchangercom)

22

23

24

142021

9

Awareness Training (Tham et al 2002)

Shaping of increased awareness through progressively increased challenges

Begin in activities that are familiar and comfortable

Can be used to look for items in a room while seated pre-ambulation etc

Can be used to remember aspects of a familiar environment

Can be used to ldquostretchrdquo into new unfamiliar environments

1 Agree on a scanning strategy (eg lighthouse)

2 Show pt where item is

3 Have pt perform the scanning task as normal to try and find _________ (eg clock on wall red line on piece of paper)

4 Stop and check flash cards

1 What did I see What did I not see2 Am I remaining focused

3 Did I use the ldquolighthouse beamrdquo or other strategy

5 Try again Cue as needed

6 When pt finds it have pt create a map or write down where it is in ptrsquos environment

7 Use mental imagery to imagine where it is before next attempt

8 Use laptop cameras to tape and play back environment

9 Repeat

Strategies to augment scanning approaches

bull Place an anchor or marker near the targeted item make it smaller or less colorful as training progresses

bull How would pt like to self monitor Cards Journal Self evaluation checklist

bull Scan the entire space

bull Have pt mentally imagine scene

25

26

27

142021

10

TENSParameters

bull Frequency 100 Hz

bull Pulse Duration 100 micros

bull Intensity sensory threshold (pleasant tingling)

bull Applied via two 2x2 in electrodes on posterolateral aspect of neck (lateral to spine) and upper trapezius on neglected side

bull Administered for 15 minutes

bull Evidence Ebrsrcom ldquoThere is moderate evidence that TENS treatments used in conjunction with explorationscanning training results in improvements on tests of neglect reading and writing post strokerdquo

What is apraxia

ldquoDifficulties in executing learned movement sequences beyond limitations that could be explained be weakness lack of coordination sensory deficits sensory loss comprehension of deficits memory or motivationrdquo

(Sabari 2008)

bull Itrsquos not because theyrsquore hemiparetic or weak (ldquohelliponce you get stronger your apraxia will resolvehelliprdquo) Thatrsquos a motor deficit

bull Itrsquos not because they donrsquot know what or where the object is (although it looks like that sometimes)

bull Itrsquos not because they donrsquot remember what the object is (although it looks like that sometimes)

bull Itrsquos not because they canrsquot sense the object (ldquooh he canrsquot feel ithelliprdquo)

It is because there is damage to the praxis system

28

29

30

142021

11

Clinical Associations

31

32

33

142021

12

Using familiar objects incorrectly

bull Dressing apraxia ndash no such thing

bull Tool apraxia ndash one in the same

34

35

36

142021

13

How Do I Measure It ndash p 10

37

38

39

142021

14

40

41

42

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 9: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

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Awareness Training (Tham et al 2002)

Shaping of increased awareness through progressively increased challenges

Begin in activities that are familiar and comfortable

Can be used to look for items in a room while seated pre-ambulation etc

Can be used to remember aspects of a familiar environment

Can be used to ldquostretchrdquo into new unfamiliar environments

1 Agree on a scanning strategy (eg lighthouse)

2 Show pt where item is

3 Have pt perform the scanning task as normal to try and find _________ (eg clock on wall red line on piece of paper)

4 Stop and check flash cards

1 What did I see What did I not see2 Am I remaining focused

3 Did I use the ldquolighthouse beamrdquo or other strategy

5 Try again Cue as needed

6 When pt finds it have pt create a map or write down where it is in ptrsquos environment

7 Use mental imagery to imagine where it is before next attempt

8 Use laptop cameras to tape and play back environment

9 Repeat

Strategies to augment scanning approaches

bull Place an anchor or marker near the targeted item make it smaller or less colorful as training progresses

bull How would pt like to self monitor Cards Journal Self evaluation checklist

bull Scan the entire space

bull Have pt mentally imagine scene

25

26

27

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TENSParameters

bull Frequency 100 Hz

bull Pulse Duration 100 micros

bull Intensity sensory threshold (pleasant tingling)

bull Applied via two 2x2 in electrodes on posterolateral aspect of neck (lateral to spine) and upper trapezius on neglected side

bull Administered for 15 minutes

bull Evidence Ebrsrcom ldquoThere is moderate evidence that TENS treatments used in conjunction with explorationscanning training results in improvements on tests of neglect reading and writing post strokerdquo

What is apraxia

ldquoDifficulties in executing learned movement sequences beyond limitations that could be explained be weakness lack of coordination sensory deficits sensory loss comprehension of deficits memory or motivationrdquo

(Sabari 2008)

bull Itrsquos not because theyrsquore hemiparetic or weak (ldquohelliponce you get stronger your apraxia will resolvehelliprdquo) Thatrsquos a motor deficit

bull Itrsquos not because they donrsquot know what or where the object is (although it looks like that sometimes)

bull Itrsquos not because they donrsquot remember what the object is (although it looks like that sometimes)

bull Itrsquos not because they canrsquot sense the object (ldquooh he canrsquot feel ithelliprdquo)

It is because there is damage to the praxis system

28

29

30

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11

Clinical Associations

31

32

33

142021

12

Using familiar objects incorrectly

bull Dressing apraxia ndash no such thing

bull Tool apraxia ndash one in the same

34

35

36

142021

13

How Do I Measure It ndash p 10

37

38

39

142021

14

40

41

42

142021

15

43

44

45

142021

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Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 10: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

10

TENSParameters

bull Frequency 100 Hz

bull Pulse Duration 100 micros

bull Intensity sensory threshold (pleasant tingling)

bull Applied via two 2x2 in electrodes on posterolateral aspect of neck (lateral to spine) and upper trapezius on neglected side

bull Administered for 15 minutes

bull Evidence Ebrsrcom ldquoThere is moderate evidence that TENS treatments used in conjunction with explorationscanning training results in improvements on tests of neglect reading and writing post strokerdquo

What is apraxia

ldquoDifficulties in executing learned movement sequences beyond limitations that could be explained be weakness lack of coordination sensory deficits sensory loss comprehension of deficits memory or motivationrdquo

(Sabari 2008)

bull Itrsquos not because theyrsquore hemiparetic or weak (ldquohelliponce you get stronger your apraxia will resolvehelliprdquo) Thatrsquos a motor deficit

bull Itrsquos not because they donrsquot know what or where the object is (although it looks like that sometimes)

bull Itrsquos not because they donrsquot remember what the object is (although it looks like that sometimes)

bull Itrsquos not because they canrsquot sense the object (ldquooh he canrsquot feel ithelliprdquo)

It is because there is damage to the praxis system

28

29

30

142021

11

Clinical Associations

31

32

33

142021

12

Using familiar objects incorrectly

bull Dressing apraxia ndash no such thing

bull Tool apraxia ndash one in the same

34

35

36

142021

13

How Do I Measure It ndash p 10

37

38

39

142021

14

40

41

42

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 11: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

11

Clinical Associations

31

32

33

142021

12

Using familiar objects incorrectly

bull Dressing apraxia ndash no such thing

bull Tool apraxia ndash one in the same

34

35

36

142021

13

How Do I Measure It ndash p 10

37

38

39

142021

14

40

41

42

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 12: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

12

Using familiar objects incorrectly

bull Dressing apraxia ndash no such thing

bull Tool apraxia ndash one in the same

34

35

36

142021

13

How Do I Measure It ndash p 10

37

38

39

142021

14

40

41

42

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 13: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

13

How Do I Measure It ndash p 10

37

38

39

142021

14

40

41

42

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 14: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

14

40

41

42

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 15: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

15

43

44

45

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46

Page 16: Perceptual Processes and Assessments: An Introduction · 2021. 2. 9. · 1/4/2021 1 Perceptual Processes and Assessments: An Introduction Steve Page, OTR/L, PhD, MS, MOT SPage@neurorecovery.net

142021

16

Thank you

Steve Page OTRL PhD MS MOT

SPageneurorecoverynet

wwwStevePRehabcom

StevePRehab

StevePRehab

46