Plasticity & Merging Systems
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6 Terms
somatosensory homunculus
body is represented in brain by network of neurons
predetermined at birth but can change throughout lifetime based on use
changes in S1 are present in individuals with chronic pain
gray matter
decreased in chronic pain states
can be restored with treatment aimed at altering information
shape and size of body maps
chnage in chronic pain states
correlates to increased pain and disability
diuse can result in smaller representation on S1
identifying L and R body parts
difficultly discriminating R and L body parts in individuals with chronic pain
cortical smudging
difficulty clearly identifying body part
2 point discrimination
size changes
cortical maps can expand or contract
changes in perceived size of body part influences pain experience