PSYC 212 Chapter Notes -Azimuth, Ion, Rela
28 Oct 2012
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Document Summary
Perception of how low/high a sound is. When 2+ frequencies make up the sound, pitch relationship becomes complicated there is a mathematical relationship between pitches and ratios (dating back to. Limits of sound detection infrasonic (<20 hz) felt, not heard. Difference thresholds for <1000 hz, it"s less than 3 hz for >1000 hz, difference thresholds increase. Metathetic (difficult to quantify) intensity of a tone can affect its pitch when the frequency is constant. A high pitch (>2000 hz) will be perceived to be getting higher if its loudness is in- creased. A low pitch (<2000 hz) will be perceived to be going lower if its loudness is increased. Gives a ratio relationship between two pitch sensations. A non-linear relationship between pitch and frequency for pure tones. Cochlear neurons synch (phase lock) to the missing fundamental frequency. Neurons fire @ the fundamental frequency temporal coding (frequency), not spectral coding (place) used for pitch.
