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PSY1101 (272)
Midterm

Second Midterm Study Sheets

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Department
Psychology
Course
PSY1101
Professor
Kenneth Campbell
Semester
Fall

Description
Sensation Sensory input and transmission is objective Audition y Result of collision of air molecules resulting in compression and expansion of air waves y Frequency time between wavesdetermine wavelength cause the ear drum to vibrate Intensitymolecules put into motion reflect strength decibeldB measure of sound pressure level The auditory nerve initially synapses in the medulla of the hindbrain where info is extractedy Risks of hearing o Conduction hearing loss damage to the sensitive middle ear mechanical device o Sensorieneural hearing loss damage to the cochlea or hair cells Frequency temporal theory Place theory Volley theory Theof times the auditory Coded by place stimulated on A single neuron cannot fire at a nerve fires codes frequency basilar membrane rate higher than 1000 Hz But if Does not code intensity ofDamage will result in hearing neuron fire in a volley like sound loss cannons higher freq is coded Ageingdeteriorate hair cells1Page
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