Language Flashcards
2 components of speech
phonation and articulation
sound made by moving vocal cords (vagal innervation)
phonation
sound made by movements of tongue/lips/palate
articulation
language hemisphere
dominant hemisphere - left for almost everyone
vascular territory for language centers
MCA
disorder of previously acquired language ability due to lesion in language center
aphasia
ease and facility of speech
fluency
imperfect repetition seen with lesions where?
Perisylvian areas -
broca’s, wernicke’s, or arcuate fasciculus
abnormal word or syllable substitution
paraphasia
paraphasia’s seen w/ which aphasia
Wernicke’s
nonsensical or foreign sounding word
neologism
posterior inferior frontal lobe lesion in dominant hemisphere
broca’s aphasia
impaired fluency
preserved comprehension
imperfect repetition
broca’s aphasia
posterior superior temporal lobe lesion in dominant hemisphere
wernicke’s aphasia
why may pt w/ broca’s aphasia also have R hemiparesis
lesion may involve primary motor cortex (next to broca’s area)
preserved fluency
impaired comprehension
imperfect repetition
wernicke’s aphasia
lesion of arcuate fasciculus
conduction aphasia
lesion damaging entire Perisylvian language region
global aphasia
global aphasia often accompanied by
severe hemiplegia
impaired reading
alexia
impaired writing
agraphia
semantic and emotional meaning of language via pitch/inflection/tone
prosody
prosody determined by which brain location
nondominant hemisphere (mirror image of language centers)
lesion of nondominant hemisphere (mirror image of language centers)
aprosodia
lesion of nondominant posterior superior temporal lobe
sensory aprosodia - difficulty understanding emotional context
lesion of nondominant posterior inferior frontal lobe
motor aprosodia - doesn’t use prosody when speaking
