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Cognitive Science CH8
acting brain
28
Physiology
Undergraduate 1
02/28/2010

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Cards

Term
degrees of freedom
Definition
infinite motor solutions for acting on an object
Term
motor program
Definition
stored routine that specifies motor parameters
Term
somatosensation
Definition
cluster of perceptual processes, touch, pain, heat, limb position
Term
proprioception
Definition
knowledge of positions of limbs in space
Term
sensory-motor transformation
Definition
link perceptual knowledge and knowledge of body to act on objects
Term
homunculus problem
Definition
explaining volitional actions w/o assuming cogniitive processes that is volitional
Term
primary motor cortex
Definition
execution of voluntary movements
Term
hemiplegia
Definition
damage to primary motor cortex failure to move other side of body
Term
frontal eye field
Definition
responsible for voluntary movement of the eyes
Term
premotor cortex
Definition
linking actions with objects
Term
supplementary motor area
Definition
well learned actions, actions that do not place strong demands on minitoring the environment
Term
perseveration
Definition
repeating an action that has already been performed and is no longer relevant
Term
utilization behaviour
Definition
implusively acting on irrelevant objects in the environment
Term
SAS
Definition
supervisory attentional system
goal driven; actions not normally performed like backing down a small alleyway in car
Term
schema
Definition
organized set of stored info (routine)
Term
contention scheduling
Definition
mechanism that picks 1 schem
Term
frontal apraxia
Definition
failure to set up subgoals in routine action
Term
forward model
Definition
represent of a motor command is used to predict consequences of action
Term
imitation
Definition
reproduce behavior of another through observation
Term
mirror neuron
Definition
responds to goal directed actions of self or others
Term
optic ataxia
Definition
impaired visually guided reaching
Term
tool
Definition
object that affords cetain action for a goal
Term
ideomotor apraxia
Definition
inability to produce gesture on command given object, word, or command
Term
action
Definition
outcome of set of cognitive processes that translate to movement/goal
Term
ballistic movement
Definition
like a punch; no online control
Term
controlled movment
Definition
feedback and adjusted
Term
efference
Definition
output from cortex
Term
efference copy
Definition
copy of signal to muscles
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