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Unformatted text preview: nx and related structures to say the
word.! Development in 1950s. He was taken w/ Wernicke's work in the late 1800s. Build on the idea of modular functions of language. So the idea is if you are to speak a
word that you hear, the model would work like this, the info comes in the primary auditory cortex, then it is transmitted to Wernicke's area, which is then sent to
posteriorlly to the parietal lobe. It is then going to take that sounds, and ﬁgure out what is associated with those components. So it transforms that auditory sound into
language comprehension and sent to Broca's area. So the information must be sent across the arcuate fasiculus. Once its in Broca's area, you have to produce that
word. So Broca's area is responsible for the 1st motor plan to to product that word, and sent to the premotor area and then to the motor cortex, at which point, the
motor cortex implements the language plan & coordinate the muscles in the larynx and voice box. Very straight forward predictions as to what damage to each area
what the effects would be. Classic Models of Language Processing!
The Wernicke-Geschwind Model of Language!
1. Visual cortex analyzes the image and transmits the
information about the image to the angular gyrus.! 2. The angular gyrus decodes the image information
to recognize the word and associate this visual form
with the spoken form in Wernicke’s area.! 3. Information about the word is transmitted via the
arcuate fasiculus to Broca’s area.!
4. Broca’s area formulates a motor plan to say the
appropriate word and transmits that plan to the
motor cortex for implentation.!
27:00 This model could also be applied to visual word forms. Speaking the written word is much more complicated because must ﬁrst have training on what the
visual word means; but once you have it down through training and schooling, you can transform that into the language system. The ﬁrst step is to take the visual
information through V1 and it gets translated to the angular gyrus. Visual wor...
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- Fall '11