PSYCH 1XX3 Chapter Notes - Chapter 1: Basilar Membrane, Inner Ear, Oval Window
16 Mar 2018
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Document Summary
Hearing something is completely different than feeling it. Inner: measures fluid changes in inner ear and converted to auditory impulses, oval window, connects to the cochlea in the inner ear, fluid filled tube coiled like snail shell, transfers changes in fluid to neural impulses of audition. Is a small opening: displaces fluid in the cochlea, basilar membrane, this membrane is pushed and widens towards the apex, houses auditory receptors, hair cells convert the physical stimulus into neural impulses, release neurotransmitters. Falling trees make sound waves: auditory system makes the sounds by translating sounds into audition. Vary across species according to specific needs. Species vary in the range of frequencies they can detect. Auditory system structures determine the range of frequency perception. Basilar membrane varies in length across species. Condensed bands of air particles ripple away from the sound source. Bands of air molecules push the eardrum inwards and outwards.
