14a. aphasia Flashcards
(28 cards)
what is language
set of symbols that we use as means of communication
what is speech
mechanical process of language (articulation + phonation)
what is aphasia?
-disturbance of language with a breakdown in grammar
what is anomia
difficulty in finding words
what is paraphasia?
-produce the wrong sounds
what is dysarthria?
poor articulation
what is hypophonia
soft output
2 disorders of speech
- dysarthria
2. hypophnia
what is speech supported by?
entire motor system for vocalization
how is language supporteD?
-left hemisphere
summary of broca’s aphasia
- slurred articulation
- halting speed
- good comprehension
- poor repetition
what does damage to the inferior parietal lobe lead to? (angular + supramarginal)
angular: alexia + agraphia
supramarginal: conduction aphasia
what is alexia/dyslexia?
what are the 2 types
inability to read written language
acquired, developmental
what is agraphia?
inability to write language
summary of wernicke’s
- normal articulation
- rapid speed
- poor comprehension
- no awareness
- poor awareness
what is neologic paraphasia?
-creating new words
what is semantic paraphasia?
word substitution
what is phonemic paraphasia?
sound substitution
what is conduction aphasia?
- lesions that include the arcuate fasciculus (connects Broca’s + Wernickes)
- good comprehension of speech, fluent
- poor repetition
what is global aphasia?
- non fluent speech
- impaired comprehension
- impaired repetition
what is the result of a unilateral lesion in the left hemisphere? (auditory cortices)
pure word deafness
what is pure word deafness
- does not recognize speech sounds
- can recognize non speech sounds
- produce normal speech
what is the result of a unilateral lesion in the non dominant hemisphere (auditory cortices)
amusia
what is amusia
inability to produce + recognize musical sounds
