Sos- Higher Cognitive Function Flashcards
red
green
red: prefrontal cortex
green: motor and premotor cortex
living out our day to day life and also living in a community having to get along with other people involves what
primary motor cortex and association cortex
top
bottom
top: U fibers (gyrus to gyrus)
bottom: Arcuate fasciculus (lobe to lobe)
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superior longitudinal fasciculus
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uncinate fasciculus
goes from frontal all the way to parietal and occipital (PFC to occipital lobe)
superior longitudinal fasciculus
projects from limbic structures to PFC
Uncinate fasciculus
these two pathways provide the
PFC with integrative sensory and
limbic information
superior longitudinal fasciculus
uncinate fasciculus
highest cortical functioning
deals with personality
judgement, planning, motivation
prefrontal cortex
adult male with risky behavior; doesn’t take no for an answer; bully
underdeveloped prefrontal cortex
relay station
can slow things down or speed things up
thalamus
important nucleus of thalamus that connects to prefrontal cortex
dorsomedial thalamic nucleus
inferior aspect of frontal lobe
adaptive learning (med students)
emotional flexibility
Right vs wrong
Orbitofrontal cortex (OFC)
Stalker/gambler/impulsive behavior
orbitofrontal cortex underdeveloped
dramatic changes in personality caused by lesion to where (think phineas gage)
orbitofrontal cortex
Impulsive behavior
Can’t concentrate well
Risky behavior
Inappropriate
(lesion here frequently involves work and family)
prefrontal cortex
Incontinence: bladder problem or frontal lobe sign
Task impairment: can’t get done what you’re supposed to do
Frontal release signs: disinhibited primitive reflexes
Short attention span
Acalculia: can’t do simple math
Mood changes
frontal lobe signs
lesion where?
can’t recognize L side of body
R parietal lobe (non-dominant)
language impairment
negligible effect on body position
L parietal/temporal lobe (dominant)
recognize position of body parts in space
somatognosis
don’t recognize left body
asomatognosia
don’t know of the problem
asnosognosia
How can you spot this problem: person doesn’t recognize L side of body (hemineglect syndrome)
person doesn’t shave half of face
stroke in this area can end up with hemineglect
R submarginal gyrus
MCA stroke on L side can lead to damage in what 2 areas
Brocas and Wernickes
expressive aphasia
broken speech
Brocas area
receptive aphasia
can’t comprehend language
Wernickes area
conduction aphasia damage to
arcuate fasciculus connecting brocas and wernickes
R homonymous hemianopia w/ macular sparing (where is lesion)
L visual cortex
reading and writing involve what main areas
brocas, wernickes, and primary motor cortex and visual cortex
