Language and Speech Flashcards
Overall Intelligence Theory and its problems
normal intelligence equals normal language
genetic conditions impair language
Williams syndrome = cognitive impairment but normal language
Specialized Brain Module Theory
Built in mechanisms for language acquisition
Damages to left frontal and temporal cortex affect language
Evolved from pressure to interact and intelligence came from language
Which hemisphere predominates language?
Left
What is the path of spoken language?
Auditory cortex to Wernicke’s area (where meaning is understood)
What is the path of written words?
Visual cortex to anhular gyrus (which translates the visual code into an auditory one) then to Wernicke’s area (for meaning)
What is the path of language response?
Wericke’s area translates though into verbal response, then to Broca’s area via the arcurate fasiculus as well as primary motor cortex
Broca’s Aphasia
expressive aphasia
slow speech
writing issues
Wericke’s aphasia
Receptive aphasia
Superficial structure and patterns but meaningless
Dejerine
Reaching and writing aphasia caused by damages to angular gyrus
Conduction Aphasia
Damage to arcuate fasiculus
poor repetition of unfamiliar words
Shifting from one language to another strongly activates which areas?
frontal cortex, temporal cortex and
basal ganglia (caudate)
Magnosystem hypothesis of dyslexia
processing in the dorsal stream of the visual system is impaired resulting in decreased activation of the angular gyrus