PSYC 100 Lecture Notes - Lecture 10: Amygdala, Anosmia, Somatotopic Arrangement

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Jordan Poppenk

Document Summary

Sound result from vibration, this vibration causes adjacent air molecules to become compressed into local regions of increased pressure, and rarefied into local regions of decreased pressure. These pressure changes travel through the air to our ears in a wave. The amplitude of a sound wave determined the sound"s intensity (difference in timbre based on location) Frequency - the number of peaks per second (inverse of wavelength) Spectrum - a graph showing the different component frequencies (or wavelengths) in a sound (or a source of light) Periods - the amount of time required for one cycle of a sound wave to pass a particular point: the longer the period, the longer the wavelength and lower the frequency. Number of cycles (number of periods) between high and low pressure in one second. The frequency of sound is related to our perception of pitch (psychological property corresponding to frequency; the property that allows sound to be ordered on a musical scale)