Psycho-5 - Cones- respond to COLOR differences Fovea- area...

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Cones- respond to COLOR differences Fovea- area of retina that is the center of visual field. Visual Adaptation- rods/cones sensitivity changes according to availability of light. -Dark adaptation- increased sensitivity of rods/cones because lower light levels - Light Adaptation- decreased sensitivity of rods/cones because of higher light levels HEARING Sound- psychological experience created by brain in response to changes in air pressure that are received by the auditory system Sound Waves- changes in pressure caused when molecules of air or fluid collide with one Another and then move apart again. Frequency - number of cycles per second in a wave *determines pitch. Higher freq. Higher pitch and lower freq lower pitch Pitch- auditory experience corresponding to frequency of sound vibrations resulting in higher or lower tones. Amplitude - height of wave. Larger amplitude - louder noise Decibels- measurement of loudness Timbre- Mixture of sound waves. EAR ANATOMY Outer ear- gathers, delivers sound to middle ear middle ear- amplifies, concentrates sounds inner ear- receptor cells. Hearing disorders causes: injury infections, cigarette smoking, explosions, long term exposure to loud noises, etc. Conduction deafness - middle ear deafness. Can’t amplify sound Nerve Deafness- inner ear deafness. Never cell malfunction SMELL (olfaction) Olfactory epithelium- mucus membrane containing smell receptors **Most primitive(earliest developed) and emotionally sensative** ****Rarely perceive odors as neutral**** TASTE (Gustation) Taste v.s. Flavor *Taste- from tongue *flavor- subjective Tastes: sweet, sour, salty, bitter, Astringent (tea-ish), Umami (jap for good), (love for fatty food) *taste can show adaptation Cross adaptation- exposure to one taste can modify another taste (drinking after brushing) Kinesthetic and vestibular senses Kinesthetic- muscle mvt, posture and strain on muscles *how fast we are moving and direction Vestibular- sense of balance and body position *orientation in space Skin senses Touch- most comforting sense *can sense pressure as much as displacement from .00004” *various parts of body more touch sensitive
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This note was uploaded on 04/07/2008 for the course PSYCH 2001 taught by Professor Domange during the Fall '08 term at LSU.

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Psycho-5 - Cones- respond to COLOR differences Fovea- area...

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