PSYC 2410 Study Guide - Final Guide: Ventral Posterior Nucleus, Secondary Somatosensory Cortex, Medial Dorsal Nucleus

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2410
• Professor: Elena Choleris

Document Summary

Missing fundamental: when you hear sound that sounds one frequency when it is not there (200, 300 and. 400 hz and sounds same as 100 hz sound) Infrasounds: sounds below perception (can sometimes perceive these) Eustachian tube: how we get air in middle ear, used for equalization and why lose some hearing when we have a cold (gets plugged) Hair cells are receptors for hearing, ciliated, floating in fluid or embedded in tectorial membrane (respond to mechanical stimulus, graded, physically connected and when channels open, k+ and ca+2 rush in. Aging: lose high frequencies first membrane less flexible and smaller to begin with. Conductive ossicles damage /malformed / plugged due to cold. Nerve damage to auditory nerve or hair cells, tumour, stroke, blow to head (less likely) Free nerve endings: simplest, pain and temperature changes, close to surface, fast adapting. Pacinian capsules: largest and deepest, onion, responds to sudden skin displacements, fast adapting.