PSYC 2000 Chapter : Ch 3 Sensation And Perception
Document Summary
Suggests that different sound waves stimulate the basilar membrane at different, specific places resulting in perceived pitch: frequency theory. States that the rate of nerve impulses traveling up the auditory nerve matches the frequency of a tone, thus enabling us to sense its pitch: volley principle. Frequency theory best explains how we perceive low-pitched sounds: because we have two ears, sounds that reach one ear faster help us locate source of sound, hearing impairment, conduction hearing impairment. Input: chemicals: the gustatory (taste) receptors are clusters of cells, which are responsible for the sense of taste, they are mostly located on the tongue, gustatory transduction: conversion of food molecules into neural impulses, 5 basic tastes. Sweet, sour, salty, bitter, "brothy" or "savory" or umami: gustatory cortex, where taste is processed, other sensations of taste, like texture, are processed in the somatosensory cortex in the parietal lobe, smell.
