Flashcards in Disorders of Language Deck (30)
what is aphasia?
disturbance in language as a results of brain damage
language versus speech
language produced via:
3 causes of aphasia:
2. insidious: dementia
3. paroxysmal: seizures/migraines
Paul Broca started the move towards?
% of ppl who are left lateralized?
95% right handers
70% left handers
does right hemisphere have any role in language?
2 divisions of MCA?
inferior MCA supplies?
1. temporoparietal cortex
2. visual tracts
superior MCA supplies?
1. sensorimotor cortex
2. ventrolateral prefrontal cortex
2 parts of language system is?
Non fluent aphasia is problem with? what kind of lesion?
prob with production/grammar/structure
Broca's aphasia called?
Wernicke's aphasia called?
fluent aphasia is impaired where? with what?
impaired selection of content
2 areas of in Broca important in language: Pars...
1. pars triangularis
2. pars opercularis
2 gyri that have temporoparietal assication neocortex with Wernicke's area?
1. supramarginal gyrus
2. anglar gyrus
what is the arcuate fasciculus tract for?
link Wernicke's to premotor and Broca's
Wernicke's aphasia language output include what 2 things?
2. paraphasic errors
Wernicke's aphasia motor and comprehension is?
no motor impairment
what happens if you get Wernicke's aphasia affecting visual tracts?
could have right quadrantanopsia
Broca's Aphasia: describe
highly effortful speech
Broca's Aphasia comprehension and muscles?
right face and arm weakness
What is conduction aphasia?
fluent aphasia better thn Wernicke's
poor repetition of words
what is transcortical motor aphasia?
repetition is preserved
muteness if severe.
2 big mechanisms of recovery:
1. contralateral transfer
2. ipsilateral re-organization
examples of contralateral transfer?
examples of ipsilateral reorganization? when?
2. focal developmental anomaly
which is better long term recovery? reorganization ipsilateral? or contralateral?
both is best
Uvula towards or away from lesion?
away from lesion