cesar521's version from 2016-01-12 03:37


Question Answer
afterimagesoccur when a visual sensation persists for a brief time even after the original stimulus is removed. ex. american flag
aqueous humorclear layer under cornea, watery fluid
auditory canal(or ear canal), the short tunnel that runs down to the tympanic membrane, or eardrum.
binocular disparitya scientific way of saying that because the eyes are a few inches apart, they don’t see exactly the same image.
closurethe tendency to complete figures that are incomplete.
cochleasnail-shaped structure of the inner ear that is filled with fluid.
conduction hearing impairmentproblems with the mechanics of the outer or middle ear and means that sound vibrations cannot be passed from the eardrum
cones“see” colors; work best in bright light
contiguitythe tendency to perceive two things that happen close together in time as being related.
convergencerefers to the rotation of the two eyes in their sockets to focus on a single object.
corneaclear membrane on the surface of the eye; the structure that focuses most of the light coming into the eye
cortian organ on the basilar membrane that contains the auditory receptors, which send signals to the brain about sound qualities as they vibrate.
dark adaptationoccurs as the eye recovers its ability to see when going from a brightly lit state to a dark state.
depth perceptionthe capability to see the world in three dimensions
free nerve endingsjust beneath the uppermost layer of the skin that respond to changes in temperature, pressure, and pain.
frequency theorycan explain pitch below 1000 hz.
gate-control theorythe pain signals must pass through a “gate” located in the spinal cord. the activity of the gate can be closed by nonpain signals coming into the spinal cord from the body and by signals coming from the brain.
gustationsensation of taste
iriscan change the size of the pupil, letting more or less light into the eye
kinesthetic senseallow the brain to know the position and movement of the body
lensbehind the iris, suspended by muscles; finishes focusing process begun by the cornea
light adaptationthe cones have to adapt to the increased level of light
nerve hearing impairmentthe problem lies either in the inner ear or in the auditory pathways and cortical areas of the brain.
olfactionability to smell odor
otolith organstelling the person that he or she is moving forward, backward, sideways, or up and down.
pacinian corpusclesjust beneath the skin and respond to changes in pressure.
perceptual setpeople’s tendency to perceive things a certain way because their previous experiences or expectations influence them ex. young or old woman
pinnathe visible, external part of the ear that serves as a kind of concentrator, funneling the sound waves from the outside into the structure of the ear
pitchhow high or low a sound is ex. bass
place theorycan explain pitch above 1000 hz.
rodssee shades of gray; work well in low light; detect changes in brightness
rods and conesthe part that actually receives the photons of light and turns them into neural signals for the brain
semicircular canalsx-, y-, and z-axes
sensory conflict theoryexplanation of motion sickness
skin senseshaving to do with touch, pressure, temperature, and pain
somatic painpain sensations in the skin, muscles, tendons, and joints
somestheticbody senses
top-down processingthe use of preexisting knowledge to organize individual features into a unified whole. ex. puzzle seen on box
trichromatic (“three colors”) theorythis theory proposed three types of cones: red cones, blue cones, and green cones, one for each of the three primary colors of light
vestibular sensethe sense of balance.
vestibular senseshaving to do with movement and body position
visceral painpain and pressure in the organs
visual accommodationchanges its shape from thick to thin, enabling it to focus on objects that are close or far away.
vitreous humorpast the lens, light passes through a large, open space filled with a clear, jellylike fluid

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