association cortex (28) Flashcards
what are the main functions of the association cortices?
advanced perception & attention to detailed PLANNING
what cortice is this describing:
“ visual forms, objects, textures, auditory prosody, syntax”
temporal association cortices
what cortices is this describing:
“attention & intention”
parietal association cortices
which cortex is involved in sensing somesthesis?
parietal association cortex
what cortex is this describing:
“ spatial, object working memory, planning, withholding responses”
frontal association cortices
how many layers do association cortices usually have?
all have 5 and most have 6
what cells are found in layers 2 &3 of the association cortices?
pyramidal cells
what cells are found in layer 4 of the association cortices?
stellate cells
where do the cells in layer 2 project to?
other cortical areas
where do the cells in layer 3 project to ?
cortical areas of the opposite hemisphere
where do the cells in layer 5 project to?
to subcortical structures (striatum, superior colliculus)
where do the cells of layer 6 project to?
the thalamus
what layer does the thalmus input information into the association cortices?
layer 4
true or false:
the thalamus projections info into layer 4 of the motor cortices
false
because the primary motor cortices do not have a layer 4, information is projected to 3&5
what stream is considered the who/what pathway?
the ventral stream
where does the who/what pathway project to? (in terms of cortex)
the ventral premotor area
what musculature is controlled by the ventral stream?
the distal musculature
what stream is the where/when pathway?
the dorsal stream
what type of musculature does the dorsal stream control?
proximal muscles
what does agnosia mean?
impairment of object recognition
what does achromatopsia mean?
achromatopsia
what does prosopagnosia mean?
impairment of facial recognition
what does aleia mean?
impairment of word recognition
what does apraxia mean?
object utilization/tool use deficits
