NSCI 201 Chapter Notes - Chapter 27: Lateral Sulcus, Cytoarchitecture, Auditory Cortex
8 May 2016
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Modi cations of tension in larynx, vocal tract, folds etc. creates changes in frequency and pitch. People who have damage to larynx can still speak" using resonators against throat (upper airway is intact). A lot of motor and premotor components going into production and planning of speech. Major brain areas involved in the comprehension and production of speech! There are two central areas involved: broca"s and wernicke"s areas. Broca"s is responsible for planning of speech translation of symbols into words, representation of thoughts into words, etc. Broca"s aphasia: speech de cit where you can understand words, but have dif culty coming up with words in production of speech. Not a motor de cit, rather a cognitive one. Wernicke"s is close to auditory cortex, involved in comprehension processing of speech sounds, translation into words and meaning. Wernicke"s aphasia: de cit where you can hear words, but cannot extract semantic meaning from them.
