PSYB65H3 Chapter Notes - Chapter 10: Interaural Time Difference, Positron, Premotor Cortex
Document Summary
Research focus 10-1: evolution of lang & music. Music = imp in evolution; music + lang = imp role in our social/emotional lives: 26 species of primates can sing and all these singing primates = monogamous singing related to sexual or parental behaviours. Right temporal lobe for humans = specialized to analyze certain aspects of music, while left temporal lobe is responsible for analyzing aspects of speech (lang + music may have evolved together) Neanderthals did make music hw bear femur w/ holes found in a cave in northern slovenia that suggested they used it to play music (ancient flute) The auditory system analyzes the properties of sound (freq, amplitude, and complexity) separately. Frequency: number of cycles a wave completes in a given time (measured in hertz hz: 1 hertz equals. Difference in sound wave freq become differences in pitch when heard: low pitch sounds= fewer wave freq (fewer cycles per second, high pitch sounds= more wave freq.
