PSYCH 1XX3 Chapter Notes - Chapter 8: Basilar Membrane, Sine Wave, Sound
14 Aug 2020
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Document Summary
Auditory system translates sound waves from vibrating objects into the psychological experience of audition. So, falling trees produce sound eaves, but sound waves themselves don"t actually make sound unless an auditory system is present to translate those waves into the perceptual experience of audition. Auditory mechanisms across species depend on factors like: Whether they live in land, water, or air. Whether they need to communicate over long distances. Whether they need to be able to receive low/high frequency sounds. Dog whistles produce a high frequency that dogs but not humans can hear. Range of frequency determined by auditory system structures in ear: Longer basilar membrane = processing of wider range of frequencies. Most species can"t discriminate frequencies over 10,000 hz but mammals. Initiated by a vibrating object (e. g. vocal cords, guitar string, bust of air/clap) or by forcing air past a small cavity (e. g. pipe organ) Causes air molecules surround the source of the sound to be displaced.
