cortical localization Flashcards
exam 2
hyperdense signal is typical for
bleeding
most common bleed not caused by trauma
hypertension
Hypertonic, preserved bulk, weakness, brisk reflexes, babinski/myoclonus
UMN signs
Hypotonic, muscle wasting, weakness, depressed reflexes, fasciculations
LMN signs
if there is a visual field deficit in one eye only?
problem anterior to the optic chiasm
if there is the same partial visual field deficit in both eyes?
lesion posterior to the chiasm
Transcortical Motor Aphasia
Broca’s aphasia with the preserved ability to speak with repetition
Transcortical Sensory Aphasia
wernicke’s aphasia with lack of comprehension but able to repeat
Global Aphasia
wide are was affected, maybe a vessel is the cause
Conduction Aphasia
inability to repeat
Propasognosia
Inability to identify faces
Split brain syndrome
Disconnect between both sides of the brain
What side of the brain?
Emotional Mathematical The “big picture” Non verbal Procedural memory Perceiving
Right brain
What side of the brain?
Verbal Arithmetical Perceives details Declarative memory Confabulatory
Left brain
seizure that caused loss of consciousness?
both hemispheres affected
inability to perceive the visual field as a whole
simultanagnosia
difficulties fixating the eyes
oculomotor ataxia
inability to move the hand to a specific object using vision
optic ataxia
balint’s syndrome
bilateral parietal lesions
what happens in balint’s syndrome
patients fail to apprehend all but one of simultaneously presented objects at he same location
condition is object based not location based
example multicolored dots are properly seen if they are connected by lines
Grestmann syndrome
- inability to write or calculate
- inability to recognize fingers
- right-left confusion
anosagnosia
denial of deficits
non-dominant parietal signs
Denial of deficits (anosagnosia)
Visual, tactile and auditory extinction
Spatial disorganization
Neglect of left space
3 frontal flavor injuries
- anterior- aggressive
- posterior/medial/inside (singula gyrus)- apathetic
- dorsal/lateral- cannot make decisions or figure out things
paratonia
grab hand tight and tell patient to let go but they dont when you try to pull away
luria test
sustained attention and learning abilities
pruning
cutting out the neurons we do not need
anton syndrome
occipital damage where patients are adamant that they can see but all test show they are blind
