biopsych ; plasticity + functional recovery

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why would brain appear plastic?
ability to chnge throughout life
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brain experiences rapid growth in what @ infancy?
no synaptic connections
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peaking at?
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as we age what happens to rarely used connections?
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and frequently used?
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this process is knwon as?
synaptic pruning
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what is plasticity?
brain's tendency to change and adapt as result of experience and new learning
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- research into plasticity
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maguire et al studied whose brains?
london taxi drivers
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and fd significantly more vol of grey matter where?
posterior hippocampus
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control group
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this part of the brain is assoc with development of what?
spatial and navigational skills
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as part of training they must take 'the knowledge' test which assesses?
recall of city streets + possible routes
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result of this leanring exp is to?
alter structure of brains
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what is noteworthy about the longer they'd been in the job?
the more pronounced the structural difference
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- functional recovery of the brain after trauma
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following physical injury unaffected areas of the brain are able to do what?
adapt and compensate for damaged areas
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what is this functional recovery an example of?
neural plasticity
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- what happens to brain during recovery
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able to rewire and reorg brainself by doing what?
forming new synaptic connections close to areaof damage
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process supported by number of?
structural changes
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these new neural pathways are?
secondary neural pathways
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what is axonal sprouting?
growht of new nerve endings which connect with otherundamaged nerve cells to form new neuronal pathways
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what is recruitment of homologous areas?
area on opposite side of the brain carrying out the function of the other like right taking over brocas
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:) practical application
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understanding plasticity processes contributed to what field?
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following illness or injury when does spontaneuous recovery tend to slow?
after number weeks
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so what may be required to mntn imp in functioning?
forms of physical therapy
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techniques may include?
movement therapy / electrical stimulation to counter deficits
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this shows that brain has capacity to fix itself to a pt but?
process requires intervention to be successful
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:/ negative plasticity
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prolonged drug use has been shown to result in pooerer?
cognitive functioning
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as well as inc risk of?
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what % amputees known to develop phantom limb syndrome?
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sensations thoguht to be sue to cortical reorganisation where?
somatosensory cortex
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:( age and plasticity
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what happens to unctional plasticity with age?
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:) support from animal studies
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hubel and wiesel worked with which animal?
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and did what to them?
sewed one eye shut (I KNOW!!! WHY???)
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and analysed what?
brain cortical responses
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found what about the area of the visual cortex associated with the shut eye?
not idle but cont'd process info from the open eye
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Card 2


why would brain appear plastic?


ability to chnge throughout life

Card 3


brain experiences rapid growth in what @ infancy?


Preview of the front of card 3

Card 4


peaking at?


Preview of the front of card 4

Card 5


as we age what happens to rarely used connections?


Preview of the front of card 5
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