language and aphasia

Question 1

what is aphasia

Answer 1

an acquired neurological condition where language processing is disturbed (due to brain dysfunction)

Problem w/ production or comprehension of speech and ability to read or write

usually comes with a other common condition

Usually due to stroke (in left MCA) most people have a left hemisphere dominance

Question 2

Subcomponents of language

Answer 2

Phonology- sounds in language, articulation and perceptual characteristics of speech sounds

Semantics- word meaning and other declarative knowledge of the world

Syntax- sentence level word ordering

pragmatics- contribution of context to meaning (social aspects of language humor sarcarsm

Orthography: rules governing writing (phonemes and graphemes)

Hatchals gyrus- primary auditory

Question 3

Types of aphasia

Answer 3

types of aphasia: good mothers by mustard when sales come around

Three layers of the pyramid:
Is speech fluent
Can you comprehend the speech
Can the person repeat

Global , mixed transcortical , brocas, transcortical motor, wernikes, transcortical sensory, conduction, anomic

Fluency - sponatenous speech
Comprehension- semantic stores
repeats- short term phonology

Question 4

spontaneous speech

Answer 4

generate content of thought, assemble correct speech sounds for words, articulate and express thoughts

Fluency: lengtg (5-8 words per utterance)

phonemic/paraphasia errors word selection

Phonemic (dog-> mog or log) posterior perisylvian issue

Verbal paraphasia( dog–> cat or hog)Anterior / middle tenporal lobe angular gyrus

Question 5

auditory comprehension

Answer 5

decode incoming speech sounds, access semantics to understand what you heard

simple motor commands (show me 2 fingers)

point to the duck

Question 6

Broca aphasia

Answer 6

anterior inferior frontal left gyrus

cant articulate

non fluent aphasia

Question 7

motor transcortical

Answer 7

very similar to brocas bc they can repeat only in frontal

Question 8

wernickes aphasi

Answer 8

very large of lower lateral temporal lobe

posterior aphasia

Question 9

sensory transcortical

Answer 9

semantic of lower temporal and to the anterior occiital lobe

Question 10

conduction

Answer 10

only in phonological retreival right around the sylvian fissure