Vision Use the following ppt. to take notes on the structure of the eye. Before you tape the eye...
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Vision Use the following ppt. to take notes on the structure of the eye. Before you tape the eye diagram into notes – take notes on wavelengths (Obj.7)
Vision Use the following ppt. to take notes on the structure of
the eye. Before you tape the eye diagram into notes take notes on
wavelengths (Obj.7) Tape the eye into your notebook. You should
label the eye and then define each part underneath your diagram.
You will take additional notes on the retina after you define the
structures.
Slide 2
Objective 7: What is the energy we see as visible light?
1.Wavelength1.Wavelength = hue/color distance from 1 wave peak to
the next Hue (color) Hue 2. Intensity2. Intensity = brightness the
amount of energy in light waves Wave amplitude/height = brightness
Frequency of a wave shows us color Height of a wave shows us
brightness
Slide 3
The Physical Property of Waves HUE/ COLORBRIGHTNESS Frequency
of a wave shows us color Height of a wave shows us brightness
The Structure of the Eye Pupil = the adjustable opening in the
center of the eye through which light enters.
Slide 8
The Structure of the Eye Iris = a ring of muscle tissue that
forms the colored portion of the eye around the pupil and controls
the size of the pupil opening. The iris dilates/constricts in
response to changing light intensity
Slide 9
The Structure of the Eye Lens = the transparent structure
behind the pupil that changes shape to help focus images on the
retina.
Slide 10
The Structure of the Eye Retina = the light-sensitive inner
surface of the eye, containing the receptor rods and cones plus
layers of neurons that begin the processing of visual
information.
Slide 11
The Structure of the Eye Blind Spot = the point at which the
optic nerve leaves the eye, creating a blind spot because no
receptor cells are located there.
Slide 12
The Structure of the Eye Fovea = the central focal point in the
retina, around which the eyes cones cluster.
Slide 13
The Structure of the Eye Optic Nerve = the nerve that carries
neural impulses from the eye to the brain.
Slide 14
The Retina Rods and Cones RodsCones Rods Cones retinal
receptors that detect black, white, and gray; peripheral &
twilight vision, when cones dont respond *work well in dark*
retinal receptor cells concentrated near the Center of the retina;
function in daylight or in well-lit conditions. Detect fine detail
& Color. *doesnt work well in dark *
Slide 15
Objective 9: Visual Organization Gestalt psychology- Our brains
tendency to integrate pieces of information into meaningful wholes
GO TO MY BIG CAMPUS & TAKE NOTES ON THE VIDEOS YOU SEE FOR
OBJECTIVES 9 -10-11
Slide 16
Figure Ground The organization of the visual field into objects
(the figures) that stand out from their surroundings (the
ground)
Slide 17
Objective 9 Gestalt Psychology Gestalt An organized whole; our
brains fill in the missing details Figure-Ground Grouping Grouping
Proximity Similarity Closure
Slide 18
Form Perception Grouping
Slide 19
Form Perception Grouping - Proximity We group nearby objects
together
Slide 20
Form Perception Grouping - Similarity We group similar objects
together
Slide 21
Form Perception Grouping - Closure We fill in gaps to create a
complete, whole object
Slide 22
Objective 10: Depth Perception Depth perception Depth
perception Visual-cliff Visual-cliff The ability to see objects in
3D the images that strike retina are 2D but hit at different times
so see depth Biology prepares us to be wary of heights but
nonverbal cues matter
http://www.youtube.com/watch?v=p6cqNhHrMJA
Slide 23
Depth Perception Binocular Cues Binocular cues Binocular cues
Retinal disparity Retinal disparity Eyes are 2 inches apart Brain
compares images to judge how close an object is
Slide 24
Depth Perception Mononocular Cues Monocular cues Monocular cues
Depth cue available to each eye alone Monocular cues Monocular cues
Relative height Relative size Interposition Linear perspective
Relative motion Light and shadow
Slide 25
Depth Perception Mononocular Cues Relative Height We perceive
objects higher in our field of vision as farther away
Slide 26
Depth Perception Mononocular Cues Relative Size If we assume 2
objects are similar in size, most people perceive the one that
casts the smaller retinal image as farther away
Slide 27
Depth Perception Mononocular Cues - Interposition If one object
partially blocks our view of another, we perceive it as
closer.
Slide 28
Depth Perception Mononocular Cues Linear Perspective Parallel
lines seem to meet in the distance. The sharper the angel of
convergence, the greater the perceived distance.
Slide 29
Perceptual Adaptation The ability to adjust to an artificially
displaced or even inverted visual field Humans adapt to a distorted
world when wearing goggles that shifts location 30 degrees.
Slide 30
Hearing http://www.youtube.com/watch?v=LsOo 3jzkhYA 29 year old
hears for first time http://www.youtube.com/watch?v=- GA9gEh1fLs
Little Boy hears for first time
Slide 31
Hearing & Other Senses Objectives 11
Slide 32
Oval window =middle earconnects to the cochlea Cochlea = a
coiled, bony, fluid-filled tube in the inner ear through which
sound waves trigger nerve impulses. thalamus
Slide 33
Slide 34
The Ear Perceiving Loudness Brain interprets loudness from the
number of activated hair cells Basilar membranes hair cells