25
qEEG and Neurofeedback in Mild Traumatic Brain Injury Derek Jones PhD MBA Anatomical Concepts (UK) Ltd Fixxl Ltd

qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

Embed Size (px)

Citation preview

Page 1: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

qEEG and Neurofeedbackin Mild Traumatic Brain Injury

Derek Jones PhD MBA Anatomical Concepts (UK) LtdFixxl Ltd

Page 2: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

Can we distinguish brain injured from ‘normals’ based on their qEEG?

Can we use neurofeedback to improve

function?

mTBI

Page 3: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

… Not Just About Sport …•Initial damage may seem minimal .. but …

•Chronic effects in the longer term

•Significant cognitive, sensory and psychiatric dysfunction

Page 4: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

EEGBioelectric potential

recorded at the surface of the head using electrodes

and instrumentation.

Arising from the brain cells in the cerebral cortex

epiphenomenon

Page 5: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

EEG Signal Acquisition

•80 year + Experience •Good hardware •Care needs to be taken

Page 6: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

qEEG =

Quantitative Electroencephalography

•Frequency domain representation •Normative databases •Coherence

Page 7: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

Data Acquisition

• Microvolt level signals • Sensitive to error & protocols • Standardised electrode positions

https://www.biofeedback-tech.com

Page 8: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017
Page 9: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

moment-to-moment brain function is directly linked to

EEG oscillations.

Trauma should be reflected in the EEG pattern but needs to be quantified - you can’t do this

subjectively

Page 10: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

Frequency SpectrumRepresenting the EEG

as consisting of several “classical” frequency bands

Delta - 0 to 4 Hz Theta - 4 to 7 Hz Alpha - 8 to 13 Hz Beta1 - 15 to 21 Hz Beta2 - 21 to 30 Hz Gamma - 30 to 100 Hz

SMR 12-15 Hz

Page 11: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

Frequency Domain

Page 12: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

Classify..Group A

Group CGroup B

“mTBI”

“normal”

Page 13: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

Coherence

• Coherence (correlation) between regions tends to be high due to high level of connectedness

• Connectivity reflects the amount of processing that the brain is devoting to particular activities

• Could look at magnitude and phase of FFT

Page 14: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

Human ConnectomeMapping Structure and Function

A wiring diagram of the brain

Page 15: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

Normative Database

individual

Page 16: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

Identify mTBIKirtley Thornton “A QEEG activation methodology that obtained 100% accuracy in the discrimination of traumatic brain injured from normal and does the learning disabled show the brain injury pattern?”.Neuroregulation, Vol. 1(3-4):209-218, 2014

Page 17: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

10-20

Page 18: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017
Page 19: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

Neurofeedback• Signals from the brain are “revealed” to the trainee

• Brain processes new information and learns

• Allows conditioning and signage to occur

• System needs to be intuitive and relatively simple

• There is engagement - but not “trying”

• EEG changes may occur but what matters is clinical outcomes

Page 20: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017
Page 21: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

Conceptual view of Neurofeedback

EEG

Brain Events

Behaviour

Thought

Externalised

Internalised

Perceived as ThoughtsPerceived as Behaviour

Perceived as Neurofeedback

Page 22: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017
Page 23: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017
Page 24: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017
Page 25: qEEG AND Neurofeedback in mTBI -European Neuro Convention 2017

Derek Jones PhD MBA Anatomical Concepts (UK) LtdFixxl Ltd