PSYC 212 Lecture Notes - Lecture 5: Sound Localization, Interaural Time Difference, Inverse-Square Law

• School: McGill University
• Department: Psychology
• Course: PSYC 212
• Professor: Mathieu Roy

Document Summary

Sound localization: interaural time difference (itd): difference in time btwn a sound arriving at one ear versus the other. Azimuth: angle of a sound source on the horizontal plane relative to a point in the center of the head btwn the ears. Medial superior olives (msos): relay station in the brains tem where inputs fro both ears contribute to detection of interaural time difference. Difference in time btwn a sound arriving at one ear versus the other. Azimuth: the angle of a sound source relative to the center of the head. Itd greatest when azimuth is 90 , lowest when sound coming from front or back of head (0 or 180 ) Physiology: coincidence detector neurons in the superior olive are tuned to detect different itds: interaural level difference (ild): difference in level (intensity) btwn a sound arriving at one ear vs the other.