Lecture 21 - Overcoming damage to the motor system Flashcards

1
Q

what is the name of the large area of the brain dedicated to controlling dexterity?

A

motor homunculus

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2
Q

neurons in M1 synapse …… at motor muscles in the arm and hand, this is known as a …….. connection

A

directly, monosynaptic

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3
Q

neuroprosthetics replace what in the brain?

A

lost connections after complete spinal cord injury

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4
Q

neuroplasticity does what in the brain?

A

strengthens surviving conditions

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5
Q

name some examples of brain machine interfaces

A

EEG, fMRI, PET, LFP, ECoG

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6
Q

which brain machine interface has the highest spatial and lowest time resolution? which has the highest time but lowest spatial?

A

EEG, fMRI

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7
Q

rank these brain machine interfaces in order of lowest to highest spatial resolution: EEG, PET, SPECT, MEG, fMRI

A

lowest: fMRI
PET
MEG
SPECT
highest: EEG

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8
Q

rank these brain machine interfaces in order of lowest to highest time resolution: EEG, PET, SPECT, MEG, fMRI

A

lowest = EE/MEG
fMRI
PET
highest =.SPECT

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9
Q

what is the biomimetic approach in brain machine interfaces? give an example of one

A

interfaces should be designed to mimic lost motor pathways to restore natural limb movement e.g a prosthetic leg

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10
Q

what is the neurofeedback approach in brain machine interfaces? give an example

A

interfaces cannot mimic lost pathways but instead afford a new function that must be learned e.g a wheelchair or sprinters legs

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11
Q

give some examples of neural interfaces we have now for parkinsons, deafness and paralysis

A

brain stimulation, cochlear implants, brain controlled prosthetic limbs

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12
Q

give some examples of brain machine interfaces we could have in 20 years for epilepsy/depression and blindness

A

brain stimulation, vision implants

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13
Q

name the 4 ethical issues with neural interfaces

A

privacy - who owns your brain data?
equality - who decides who gets to benefit from interfaces?
autonomy - are you still in control?
normality - do you want a normal brain?

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