PSYCH 10 Lecture Notes - Lecture 7: Olfaction, Virtual Reality, Social Cognition
Document Summary
Outer ear collects sounds middle ear where ossicles (hammer, anvil and stirrup) inner ear (fluid moves oval window over hair cells in cochlea. Cells send signals to auditory nerves to temporal lobe of brain. Middle ear isn"t conducting sound well to cochlea. Receptor cells aren"t sending messages of auditory nerves. Exposure to sounds that are too loud can damage inner ear (esp hair cells) Disease can cause damage to inner/middle ear. Limit exposure to sounds over 85 decibels + treat ear infections. Conduction hearing loss: hearing aids amplify sounds striking ear drum, making soft and higher frequency sounds louder. Sensorineural hearing loss: cochlear implants does work of hair cells and translates sound waves to electrical impulses to brain. Causes greater number of hair cells to send signals to brains. Soft sounds only move certain hair cells; loud sounds move neighbors as well. High pitch frequencies are generated at different parts of cochlea.
