Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
Inferior frontal gyrus lesion
|
Broca's aphasia
|
|
|
Broca's
|
language comprehension ok but fluency impaired. difficulty reading and writing.
|
|
|
posterior superior temporal gyrus lesion
|
wernicke's
|
|
|
wernicke's
|
impaired comprehension; speech fluent but nonsensical. reading and writing bad.
|
|
|
arcuate fasciculus
|
connection btw broca and wernicke; interuption makes speech fluent but nonsensical (similar to wernicke) but comprehension is ok.
|
|
|
global aphasia
|
large MCA lesion can affect both broca and wernicke.
|
|
|
alexia
|
impaired reading due to PCA lesion of visual cortex in dominant hemisphere that extends to posterior CC. info that goes go right side can't reach language areas on L.
|
|
|
agraphia
|
impaired writing
|
|
|
apraxia
|
inability to perform correct sequence of movement despite no problems in motor cortex or cerebellum. often accompanies aphasia. hetermodal lesion; not a problem in one single area.
|
|
|
dominant hemisphere
|
specialized for language, programming of complex motor tasks
|
|
|
nondominant hemisphere
|
controls attentional mechanisms, and spatial analysis and integration.
|
|
|
L side neglect or hemineglect
|
R lesion of parietal/frontal association cortex; fail to perceive left side of body. **L side lesion less problematic - R side can make up for it.
|
|
|
Skills that require both hemispheres
|
communication via corpus callosum. Ex: L side does language but R side conveys emotion in language. R side important for spatial awareness in motor activities, sense of direction, etc. Lining up numbers in a line to add them up.
|
|
|
corpus callosum lesion
|
patient presented w/ object in L visual field cannot name it because information can't get from R brain to Broca's area.
|
|
|
Prosopagnosia
|
vascular occlusion at the bifurcation of the basilar artery into the two posterior cerebral arteries. A characteristic symptom of a bilateral lesion of the fusiform gyrus is called prosopagnosia, consisting in the loss of face recognition: the patient can describe a face and even associate faces on the basis of common features (i.e. wearing a beard or glasses) but s/he cannot attribute a particular face to an individual, even of a well known individual. Prosopagnosia is frequently associated with disorders of color perception.
|
