BCS 151 Lecture Notes - Lecture 16: Somatosensory System, Sound Intensity, Low Frequency
11 Nov 2016
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Deafness cuts you off from people: social interactions are mainly about talking and listening. Function of hearing: a good way of detecting things not in the line of sight, localization of sounds where", recognition of sounds what", communication (content, source, affect, navigation & motor coordination. Gives important info about what you"re doing: enjoyment of music. Humans and other animals are able to identify a wide variety of sounds, presumably based on their timbres & rhythms. Hearing is a tactile system because it detects mechanical vibrations. Slide 6 questions: outer space is a vacuum and thus, no medium for sound to travel. Small objects same wavelengths high frequency. Large objects large wavelengths low frequency. Pure tones: sound with only 1 frequency, period: same point in one period matches another. Sound pitch sound frequency we experience. Complex, natural sounds: what occurs in the real environment, a combination of pure tones.
