PSYC 2P35 Lecture Notes - Lecture 11: Temporal Lobe, Inferior Colliculus, Medial Geniculate Nucleus

• School: Brock University
• Department: Psychology
• Course: PSYC 2P35
• Professor: Dawn Good

Document Summary

Perfect pitch: ability to identify/sing any given musical note without reference pitch. Increased prevalence of a perfect pitch in blind musicians. Differences in brain size + activation in persons with perfect pitch relative to those without perfect pitch. Inhibitory control is protective prevents action potential so that loud sounds doesn"t affect the ear (acoustic reflex) The uniqueness of a amplitude is accomplished in 2 ways: High freq over 3000 rate of firing how fast neurons fire. Cns projection site: ventral (bottom part) gyrus of the temporal lobe. Low freq below 3000hz population of neurons firing ex. number how many. Cns projection site: dorsal surface gyrus of the temporal lobe. Physiological equivalent: indentation of right vs left ear sequence. Accomplished via compressions of air waves (the degree to which condensations (compressions) and rarefractions (negative pressures) differ from each other) Low frew (under 1500hz) phasic differences; ex. which ear is activated first. Cns projection site: accomplished at olivary complex of the medulla.