Chapter 11: Language Flashcards
What is the classical model of language?
Says that specific regions in the brain perform specific tasks
Left Perisylvian Language Network includes:
Broca’s area, superior temporal gyrus, Wernicke’s area, Angular gyrus, Supprmarginal gyrus
Aphasia
Broad term signifying the collective deficits in language comprehension and production as a result of brain damage.
Dysarthria
Speech problems due to a loss of control over articulatory muscles. (Hard to move your mouth to say something)
Apraxia
Deficits in motor planning of articulations. (Mumbling sounds).
Broca’s Aphasia
- Speech difficulties in the absence of comprehension problems.
- They can’t repeat words
- Uses toddler words like “eat and go”
Agromatic aphasia
- Type of Broca’s aphasia
- Doesn’t understand complex grammar
Wernicke’s aphasia
A disorder primarily of language comprehension
- Problem with understanding spoken and written language.
- Their speech is fluent and have normal grammar
Conduction aphasia
- Result of damage to the arcuate fasciculus
- Problems producing spontaneous speech and repeating speech
Global aphasia
- Results from extensive damage to the left hemisphere
- Inability to produce and comprehend language
Problems with the Classical Model of Language
- Broca’s and Wernicke’s areas are not the ONLY brain areas implicated in Broca’s and Wernicke’s aphasia’s
- Broca’s and Wernicke’s aphasias are a mixed bad of symptoms
- Another model says language comes from a network of brain connections as a whole.
Mental Lexicon
Mental store of information about words that includes semantic, syntactic and word form information
Lexical Access
Output of perceptual analysis activates word-form representations in the mental lexicon
Lexical Selection
Lexical representation in the mental lexicon that best matches the input selected
Lexical Integration
Words are integrated into the larger context to understand the whole message
