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Psych Exam 1 Ch6

QuestionAnswer
Sensation The process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment. "Stimulation of sense organs"
Perception selection, organization, and interpretation of sensory input
cochlea A coiled, bony, fluid-filled tube in the inner ear through which sound waves trigger nerve impulses.
depth cues Binocular cues – clues from both eyes together retinal disparity Monocular cues – clues from a single eye texture and brightness apparent size, interposition
motion cues Image across stationary retina Image constant with eye or head movement
iris colored ring of muscle surrounding the pupil that controls the size of the pupil opening.
lens The transparent structure behind the pupil that changes shape to help focus images on the retina.
retina : neural tissue lining the inside back surface of the eye which absorbs light, processes images, and sends information to the brain
fovea The central focal point in the retina, around which the eye's cones cluster
pupil regulates amount of light
cones Retinal receptors that detect black, white, and gray; necessary for peripheral and twilight vision, when cones don't respond.
rods Receptor cells that are concentrated near the center of the retina and that function in the daylight or in well-lit conditions. The cones detect fine detail and give rise to color sensations.
blind spot The point at which the optic nerve leaves the eye, creating a "blind" spot because no receptor cells are located there.
taste Gustation Physical stimulus: soluble chemical substances sweet, sour, bitter, and salty Taste: learned and social processes
smell Olfaction Physical stimuli: substances carried in the air Olfactory receptors = olfactory cilia Synapse directly with cells in brain
touch Physical stimuli = mechanical, thermal, and chemical energy coming in contact with the skin Pathway: Sensory receptors -> the spinal cord -> brainstem -> thalamus -> somatosensory cortex (parietal lobe)
parapsychology Study of perceptions not attributable to the five senses Knowing the future
Created by: pizza123