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;
14 Cards in this Set
- Front
- Back
Global aphasia
|
Most severe, all language abilities involved:
oral expression, auditory comp, repetition, naming Generally involves entire area around Sylvian fissure Can have 2 lesions – front & back Production - may say 1-2 words, always the same Comprehension – maybe 1-2 words Emotional expressions |
|
Lesion location for Broca's Aphasia
|
Lesion usually in left hemisphere, lower portion ofposterior frontal lobe
3rd frontal convolution Often involves surrounding areas May include foot of motor strip Anterior/superior/posterior areas |
|
damage to brocas area ONLY causes
|
apraxia of speech
|
|
characteristics of broca's aphasia
|
Agrammatism
Consequence= telegraphic speech (short utterances) Oral expression Mild-to-severe Speech severely impaired (fluency) Disappearance of functor words – inflectional endings Relative preservation of substantive words, compared to functor words Short nouns likely to remain than verbs Word order okay, syntax okay |
|
theories about why functor words are impaired in people with broca's aphasia
|
They carry rules of grammar, can’t compute rules (debated)
Computational problem Gets words overall, can’t manipulate word order (passive tense) Working memory problem They know what they want to say Can’t hold info in WM when retrieving (doing something else) More efficient to drop them! (telegrammore for less) |
|
more characteristics of broca's aphasia
|
Expressive speech/ speech production
Speech production effortful, labored Articulatory problems Abnormal prosody, sounds like ESL Especially if Broca’s aphasia is complicated byapraxia of speech Flat melodic contour (not monotone) “restricted pitch changes” Anomia: naming problems Word retrieval (nouns, verbs, adjectives, adverbs…) Does not refer to functor words Agrammatism - syntactic issue Specific word omissions: articles, plurals, prepositions Reduced MLU (average # of words) |
|
auditory comprehension in broca's aphasia
|
Better than anything they are doing
Mod-mild compared to oral expression Might not be able to retrieve a word, but can understand it Restricted to certain sentence types Require syntactic analysis – passive tense Asyntactic comprehension problems because of the analysis they must do Some evidence that it mirrors their oral expressive speech |
|
repetition with brocas aphasia
|
Mild-to-severe
Can repeat single words Longer utterances will reflect agrammatism Can usually respond to phonemic cues Lexical/semantic connection still present Errors made usually in the “ball park” “pen-pencil” Functor word testing “no ifs, ands, or buts” – can’t do! |
|
writting with broca's aphasia
|
Mild-to-severe
Will reflect oral expressive abilities No functor words Word order okay Word retrieval better with nouns than verbs Don’t confused writing linguistic issues with hemiplegia!! |
|
other dysfunctions with broca's aphaisa
|
Right hemiplegia
Oral motor difficulties Blowing, moving tongue (apraxia, programming) Depression – awareness, but also changed brain chemistry Catastrophic emotional reactions (crying, violence) |
|
damage with mixed transcortical aka isolation aphasia
|
“Cookie cutter” – isolated – perisylvian region ok
Rare – lesion isolates the speech area from other cortical areas Could be in either place: Frontal lobe – inferior Temporal lobe - superior, anterior |
|
isolation aphasia
|
WAB – only place it is referred to as a classification
Fluency, auditory comprehension, naming severe reduction Repetition is not as bad…mild to moderate impairment Does not initiate conversation (Brocas will initiate) |
|
lesions and damage with transcoritcal motor aphasia
|
aka anterior isolation aphasia
Loci of lesion – 3 possible areas: Superior to/deep in/anterior to Broca’s area Broca’s area is not damaged |
|
transcortical motor aphasia
|
Spontaneous speech **worse than anything else**
Severely impaired; looks like Broca’s, but less articulatory problems More perseveration; gives correct initial response, but all subsequent are same response (bottlebottle…keybottle) Phonemic paraphasia errors Non-fluent -Lexical, syntactic errors Auditory comprehension Better than production As good as, or better than Brocas (mild-to-moderate impairment, contradicts Brocas) Repetition Can repeat properly, better than expected (better than Broca) Sometimes sounds echolalic (Broca not echolalic Arcuate Fasiculus okay Naming (word retrieval) Better than production |