PS366 Study Guide - Final Guide: Transcortical Sensory Aphasia, Oneword, Visual Cortex
Document Summary
Most evidence for speciic language areas in the brain comes from studies of brain damage. Aphasia: any impairment in language production or comprehension caused by brain damage. Damage to frontal regions of left hemisphere. Severe loss of ability to express grammatical relationships in speech and writing: omit articles, conjunctions, grammatical inlections, efort to produce speech, short one-word utterances. You damage it, it leads to issues with producing speech. People who damage this area have a lot of diiculty producing speech and produce speech that is achromatic, you lose syntactic ability. If damaged, you wont send the correct signals to produce. Damage to the rear of the left temporal lobe, adjacent to the auditory cortex. Speech production is luent (syntax is preserved), but usually meaningless. Speech marked by invented words or semantically inappropriate substitutions. Comprehension is severely impaired, lack of awareness that speech is incomprehensible. They don"t even realize at times that what they"re saying is unsensable.
