PSYCH 1XX3 Lecture Notes - Lecture 8: Oval Window, Basilar Membrane, Round Window
11 Nov 2016
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Sound is the result of our interpretation of waves. Dog whistle you (cid:272)a(cid:374)"t hea(cid:396) a(cid:374)ythi(cid:374)g (cid:271)ut you(cid:396) dog will (cid:271)e a(cid:271)le to frequency beyond the range of human ears but within the range of dog"s audito(cid:396)y syste(cid:373) Humans can perceive sounds that lie anywhere between 20 and 20,000 hz a respectable auditory range. Frogs, birds have much narrower range of frequencies that they can detect. Whales, dolphins, and dogs have a wider hearing range. At lower frequency detection extreme are fish higher frequency are bats and rodents. If a fish and bat were able to communicate, the conversation would have to be based on the narrow range of frequency overlap available to both species at about 2000 hz. This would sound v high-pitched to the fish and v low pitched to the bat. Determined in part by the evolution of the structures of the auditory system.
