Language Flashcards
Confirmation of hemispheric specialization for language
split brain patients percieve the left visual information but cannot identify it using language. They percieve right visual information and can identify is using language because the BRoca’s area is on the same side?
Broca’s area
region essential for language production
Brain regions of the language in the left hemisphere
Auditory cortex, Wenicke’s area, * Angular gyrus (Geschwind’s area), Broca’s area, Arcuate fasiculus, and Motor cortex
Auditory cortex
temporal lobe, identify pitch and loudness of sounds
Wernicke’s area
Temporal lobe, comprehension of language
Angular gyrus
Parietal lobe, number and semantic processing, working memory
Broca’s area
Frontal lobe, production of language
Arcuate fasiculus
Axons connecting Broca’s an Wernicke’s areas
Motor cortex
Frontal lobe, motor control of mouth and lips
Wernicke’s Aphasia
Fluent speech but poor comprehension of language
Broca’s Aphasia
Speech is non-fluent, agrammatical, but can understand language
Conduction Aphasia
Lesion of arcuate fasiculus -> both expression and comprehension remain intact, but with an impairment to repeat words
Wernicke-Deschwind Model of Language: repeating a spoken word
Auditory cortex -> Wernicke’s Area -> Angular Gyrus -> Broca’s Area -> Motor Cortex
Wernicke-Deschwind Model of Language: repeating a written word
Visual Cortex -> Wernicke’s Area -> Angular Gyrus -> Broca’s Area -> Motor CortexVisual cortex ->
Dual-stream Model of language
Bi-directional transfer of information between ventral stream and dorsal stream