COGS 154 Lecture Notes - Lecture 7: Basal Ganglia, Muscle Atrophy, Groping

• School: UCSD
• Department: Cognitive Science
• Course: COGS 154
• Professor: Shengqi Yang

Document Summary

Lecture 7: speech disorders in children & adults. Four systems of the speech mechanism: respiratory system (breathe, phonatory system (neck that produces sound-> vocal chords, resonatory system (quality of sound -> changing shape of cavities, articulatory system (lips, teeth) Childhood apraxia of speech (c-aos): motor programming/planning. Disorder: delay doesn"t necessarily mean a disorder, disorder is very noticeable. Range in severity/intelligibility: number of sounds produced correctly, accuracy of production, ability to produce the sounds in different positions, ability to produce sound sequences, ability to produce different types of words. Etiologies: often functional/idiopathic (no known cause, co-occurrence with other types of disorders. Assessment: oral mechanism exam & hearing screening, articulation error analysis. Review: hemispheric specialization & localization of function o. Soon-won han: nerve cell, basic building block of nervous system, transmit information throughout the body (electrically, chemically) Motor neurons carry information from brain to muscles: bundle of neurons = nerve o.