Hearing Flashcards
hearing how
detecting vibration through periodic changes in pressure in medium, through ear
what are acoustic waves
mechanical, low energy that stimulate sympathetic nervous system
weber-fechner laws
perception of change vs actual change in stimulus
fechner = logarithm of change
weber = new stimulus proportional to preexisting stimulus
3 components of ear
- outer ear
- middle ear
- inner ear
tympanic membrane
outer layer of eardrum
cochlea location + what it is
inner ear
fluid filled membrane
detects frequency
ossicles location
middle ear
3 bones in ossicles
malleus, incus, stapes
organ of corti
passes on neural transduction
basilar membrane
vibrates when waves from middle ear go through cochlear fluid
steps to sound
- waves collected by outer ear get amplified
- ossicles move
- water in cochlear vibrates from ossicle movement
- organ of corti hair cells move
- hair movement generates neural signals to brain stem
6- primary auditory cortex picks up sound
loud noises side effects
- less gastric juice produces
- balance problems
- seeing more red
4 . blood pressure + pulse increase - headache
binaural hearing
we can sense direction + origin of sound
hearing adaptation
decrease in sensitivity of auditory receptors
sensory conflict theory
visual, somatosensory perceptions don’t match up so we feel motion sick