PSYCH261 Lecture Notes - Lecture 82: Insular Cortex, Caudate Nucleus, Temporal Lobe
20 Jun 2019
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Document Summary
Broca"s aphasics: difficulty with articulation: mispronouncing words, altering the sequence of sounds (e. g. lipstick turns into likstip) can recognize pronounciation errors and try to correct it. Apraxis of speech: impairment in the ability to program movements of the tongue, lips, and throat required to produce the proper sequence of speech sounds. Left precentral gyrus of the insula: critical location for the control of speech. General location that will produce aphasic symptoms, there is still a fair amount of individual variability. The anterior or frontal portion is important for the expressive or motor component of language. The posterior, or temporal part which is near the auditory area is important for the comprehension of language: the connections between the two underlie repetition and also some of the fluency aspects. Ideation areas are important for meaning: vast amount of variability between individuals. Recognizing a spoken word is a complex perceptual task that relies on memories of sequences of sounds.
