11-Language Flashcards
receptive language
brain derives meaning from auditory speech or visual language input
-comprehension
expressive language
brain produces spoken or written language output to communicate meaning
-production
anomia
difficulty finding words
-difficulty generating the words used to label things in the world.
dysarthria
difficulty controlling the muscles used in speech
-difficulty saying words
apraxia
impairment of motor planning of speech articulation
-difficulty pronouncing words
aphasia
deficit in language comprehension or production
historically Broca’s area has been associated with speech production…what new information do we have on this topic
- Broca’s area does not participate in production of individual words, but coordinates the transformation of information processing across large-scale cortical networks involved in spoken word production, prior to articulation.”
- Connects representations of words in temporal cortex to motor areas for articulation
Wernicke’s area is associated with speech comprehension deficits …how has this view recently changed
there isn’t a completely clear association with lesions in Wernicke’s Area and Wernicke’s Aphasia – also involves surrounding tissue
mental lexicon.
the collective store of information about the semantics, syntax, orthography, and phonology of words
what is the neural correlated of the mental lexicon
- inferior and medial temporal cortex
- left temporal lobe
process of spoken word comprehension and neural correlates
- PMTG :posterior middle temporal gyrus
- MTG: middle temporal gyrus
- ITG: inferir temporal gyrus
- PCC: posterior cingulate cortex
process of written language comprehension and neural correlates
-left occipitotemporal cortex
language production …neural correlates
- inferior temporal
- left frontal operculum (Brocas)
- motor cortex
- supplementary motor area
- insula
- basal ganglia
- cerebellum
- thalamus
language is in left or right hemisphere
left
which brain area connects words to motor
Broca’s area
which area connects auditory input to words
Wernicke’s area
which area links words to meaning
supra marginal gyrus
which area links visual words to meaning
angular gyrus
area responsible for auditory processing
STG (superior temporal gurus)
mental lexicon brain area
temporal lobe
mental lexicon… how it is organized semantically
- morpheme : cup, cake ,s
- frequency: accessed more quickly
- semantic relationships
- lexical neighborhood: bat, cat, sat
