Psychology 1000 : Dr. Laura Fazakas-Dehoog Psych 1000 December Term Notes.docx

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: All

Document Summary

Senses: vision, audition (hearing, touch, gestation (taste, olfaction (smell) pressure, pain, temperature. : lower threshold = more sensitive: vision: candle flame 50 km clear dark night, hearing: tick of watch in quiet 6 m away, taste, small, touch: wing of fly/bee falling on cheek from 1 cm away. Auditory transduction: from pressure waves to nerve impulses. Higher frequencies maximally stimulate membrane close to oval window p. 176 = picture of ear and stuff hearing: sound waves strike ear drum, pressure created at oval window because of bones, pressure sets fluid inside cochlea into motion, fluid waves vibrate basilar membrane, hair cells bend, bending triggers release of neurotransmitter substance (cid:224) hair cell / auditory nerve neuron synapse fires to brain, auditory cortex in temporal lobe detector neurons respond to specific auditory inputs. Sensory prosthetics: eyes for the blind, ears for the hearing impaired.