PSYC 280 Chapter Notes - Chapter 3 : Hearing Aid, Oval Window, Gestalt Psychology
Document Summary
Sensation : energy stimulates receptor cell in sense organs. Receptor cells : respond to particular form of energy. Transduction : process of converting physical energy (light/sound) into electrochemical codes. Difference threshold : smallest change in stimulate can be detected 50% of time. Absolute threshold : least amount of energy can be detected as stimulation 50% of time. Adaptation : adjustment of senses to level of stimulation receiving. Visual system : light enters through cornea , passes through pupil , focused by lens onto retina. Rods : highly sensitive to light, responsible for night vision & perception of. Cones : moderately sensitive to light, most useful in daylight, responsible for color brightness vision. 85-90 (potential ear damage): prolonged exposure causes hearing loss. ~28 million americans have some form of hearing loss. 10 million victims of exposure to noise. Chemicals communicate information to other organisms through smell. Receptors located in roof of nasal cavity. Can have specific & powerful effects on behavior.
