PSYC 2000 Chapter : PSYCH 2000 Sensation Perception Pt 2
Document Summary
Psych 2000 sensation & perception pt 2: the stimulus input: sound waves. 9/15/16: sound waves are vibrations of the molecules of air that surround us, acoustical transduction conversion of sound waves into neural impulses in the hair cells of the inner ear, sound characteristics, 1. Pitch: determined by the wavelength (distance from the peak of 1 wave to the peak of the next) or frequency (low, medium, high, measured in hertz (hz), the cycles of waves per second, 2. Volume: determined by the amplitude (softer vs louder, amt of energy in a wave determined by amplitude relates to perceived loudness, measured in decibels (db, 3. Timbre: determined by the purity, or the complexity (richness) of the tone of the sound, the ear, 1. Outer ear consists of pinna that collects & funnels sounds: eardrum vibrates when sound waves hit them, 2.
