Psychology 2115A/B Lecture Notes - Lecture 5: Eardrum, Oval Window, Sound

• School: Western University
• Department: Psychology
• Course: Psychology 2115A/B
• Professor: Prof

Document Summary

Movement of air molecules caused by vibration. Example the vibration fork (compressing air molecules: molecules go from high pressure/low pressure/high pressure etc. A sound wave is the patter in the air ( high pressure to low pressure) refer to diagram. Waves travel faster in water, but they don"t travel as far. It is a log scale: associate to sound intensity is the decibel. Phase: characterizes the relationship between sound waves, have equivalent amplitude and frequency but one could be leading the other, measured in degrees ( 360 degrees- the time between the two peeks) The sense receptor for audition is the ear. The thing that you see is the outer ear pinna: acts as an antenna (grabs the sound waves from the environment) The goes through the auditory canal: what"s picked up from the environment then goes through the canal increases pressure so we don"t loose the sound.