PSYC 101 Lecture Notes - Lecture 17: Inattentional Blindness, Outer Ear, Sound

• School: UBC
• Department: Psychology
• Course: PSYC 101
• Professor: Steven Barnes, Grace Truong

Document Summary

When ppl fail to detect changes to the visual details of a scene. Failure to perceive objects that are not the focus of attention. Detection of sound waves (changes in air pressure over time) 99. 9% of sound energy refl at air water boundary. When sound waves to fluid, loses the sound energy. Diveded along its length by the basilar membrane. Human brain can distinguish sounds from 20-20000 hz. Vibes from staple disturb cochlear fluid, creating waves. Specialized auditory receptor neurons embedded in the basilar membrane. Mvt of basilar memb phys moves stereocilia at the top of th hair cell result depolarization of the hair cell (influx of k+ Hair cells release nt glutamate which initiates the neural signal in the auditory nerve that travels to the brain. Inner ear, brainstem, midbrain, thalamus, primary auditory cortex. Mapping in basilar membrane is mirrored in primary auditory mapping. More prominent for perception of lower freq (up to 5000 hz)he.