Exam 1 Minihan Videos Flashcards

1
Q

definition of neuroplasticity

A

ability of neurons to change their function, chemical profile, or structure in the PNS or CNS (more commonly)

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2
Q

neuroplasticity is essential for….

A

memories and recovering from CNS damage

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3
Q

neuroplasticity is best seen with…

A

long term habituation, which is a decreased output to a repeated sensory input.

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4
Q

what is the basis for all learning

A

neuroplasticity

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5
Q

neuroplasticity drives…

A

cognitive capabilities

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6
Q

learning involves changing…

A

synaptic connections between neurons involved with memory

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7
Q

TF: maladaptive neuroplasticity can lead to an atypical movement or abnormal sensory perception

A

true

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8
Q

neuroplasticity is changes in the strength and connections of

A

synapses

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9
Q

what is neuroplasticity driven by

A

neurotrophic factors, derived from the brain

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10
Q

how do we get neuroplasticity

A

first there is a lot of trail and error, and large areas of the brain are synapsing with it. not very specific, need a lot of context and support. done over and over again. Must have a lot of attention and focus

over time, the number of active brain areas reduce, and become more distinct. less attention is required. specific areas brain.

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11
Q

what happens to the representation of a body area on the brain map

A

the area is bigger, because there is more specialization there, and more control and knowledge.

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12
Q

what is important with neuroplasticity, in terms of turning on receptors, or fine tuning, growth of neuron and fine tuning to stimulus

A

glutamate

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13
Q

what happens to the persons ability over time

A

less attention is needed, it can be done in more than one environment and it is easier to retrieve, optimized. only specific areas of the brain are stimulated.

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14
Q

pathology and neuroplasticity

A

must remap the cortical areas. It is slow

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15
Q

is glutamate toxic

A

yes

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16
Q

does genetic play a role in neuroplasticity

A

yes, determines how much neurotropic factors are available

17
Q

is there re growth in the CNS

A

no

18
Q

PNS, regrowth axon via

A

regenerative or collateral sprouting. 1 in per month, 1 mm per day

19
Q

maladaptive neuroplasticity

A

hurtful to function. PNS, sprouting to wrong target. CNS, reorganization of maps= inefficient movement patterns. Like stroke and not using a body part, map changes. TBI and chronic pain= all parts of maladaptive neuroplasticity