Psychology 2015A/B Lecture Notes - Lecture 6: Intramural Sports, Noise-Induced Hearing Loss, Presbycusis

• School: Western University
• Department: Psychology
• Course: Psychology 2015A/B
• Professor: John Campbell

Document Summary

Midterm 2: march 13, chapters 11,14,15, and corresponding lecture (attraction before reading week) Parts of the ear: amplitude, frequency, pitch, auditory transduction. Sound location and perception: echolocation, ben underwood, cross model perception, mcgurk effect. Two definitions: physical definition: pressure changes in the air, perceptual definition: the experience we have when we hear. Pure tone: occurs when changes in air pressure occur in a pattern described by a mathematical function called a sine wave. Amplitude: difference in pressure between high and low peaks of wave. Perception of amplitude is how loud the sound is: decibel is used as the measure of loudness. Frequency: number of cycles within a given time period: measured in hertz. 1 hz is one cycle per second: tone height is the increase in pitch that happens when frequency is increased. Perception of pitch is related to frequency high pitch high frequency. Pitch: the perceptual quality that we describe as high and low.