The stimulation of sense organs.(Weiten Psychology 8e p. 130)

The study of how physical stimuli are translated into psychological experience.(Weiten Psychology 8e p. 130)

The selection, organization, and interpretation of sensory input.(Weiten Psychology 8e p. 130)

The minimum amount of stimulation that an organism can detect for a specific type of sensory input.(Weiten Psychology 8e p. 131)

The smallest difference in the amount of stimulation that a specific sense can detect.(Weiten Psychology 8e p. 131)

A psychophysiological theory proposing that the detection of stimuli involves decision processes as well as sensory processes, which are influenced by a variety of factors besides the physical intensity of a stimulus.(Weiten Psychology 8e p. 131)

The registration of sensory input without conscious awareness.(Weiten Psychology 8e p. 132)

A gradual decline in sensitivity to prolonged stimulation.(Weiten Psychology 8e p. 132)

The transparent eye structure that focuses the light rays falling on the retina.(Weiten Psychology 8e p. 135)

A vision deficiency in which close objects are seen clearly but distant objects appear blurry.(Weiten Psychology 8e p. 137)

A vision deficiency in which distant objects are seen clearly but close objects appear blurry.(Weiten Psychology 8e p. 137)

The opening in the center of the iris that helps regulate the amount of light passing into the rear chamber of the eye.(Weiten Psychology 8e p. 137)

The neural tissue lining the inside back surface of the eye; it absorbs light, processes images, and sends visual information to the brain.(Weiten Psychology 8e p. 137)

A hole in the retina where the optic nerve fibers exit the eye.(Weiten Psychology 8e p. 137)

Specialized visual receptors that play a key role in daylight vision and color vision.(Weiten Psychology 8e p. 138)

A tiny spot in the center of the retina that contains only cones; visual acuity is greatest at this spot.(Weiten Psychology 8e p. 138)

Specialized visual receptors that play a key role in night vision and peripheral vision.(Weiten Psychology 8e p. 138)

The process in which the eyes become more sensitive to light in low illumination.(Weiten Psychology 8e p. 138)

The process whereby the eyes become less sensitive to light in high illumination.(Weiten Psychology 8e p. 138)

The retinal area that, when stimulated, affects the ring of that cell.(Weiten Psychology 8e p. 139)

A process in the retina that occurs when neural activity in a cell opposes activity in surrounding cells.(Weiten Psychology 8e p. 139)

The point at which the optic nerves from the inside half of each eye cross over and then project to the opposite half of the brain.(Weiten Psychology 8e p. 140)

Simultaneously extracting different kinds of information from the same input.(Weiten Psychology 8e p. 140)

Neurons that respond selectively to very specific features of more complex stimuli.(Weiten Psychology 8e p. 141)

Formation of colors by superimposing lights, putting more light in the mixture than exists in any one light by itself.(Weiten Psychology 8e p. 143)

Formation of colors by removing some wavelengths of light, leaving less light than was originally there.(Weiten Psychology 8e p. 143)

The theory of color vision holding that the human eye has three types of receptors with differing sensitivities to different wavelengths.(Weiten Psychology 8e p. 144)

Deficiency in the ability to distinguish among colors.(Weiten Psychology 8e p. 144)

Pairs of colors that produce gray tones when added together.(Weiten Psychology 8e p. 145)

A visual image that persists after a stimulus is removed.(Weiten Psychology 8e p. 145)

The theory that color perception depends on receptors that make antagonistic responses to three pairs of colors.(Weiten Psychology 8e p. 145)

A drawing that is compatible with two different interpretations that can shift back and forth.(Weiten Psychology 8e p. 146)

A readiness to perceive a stimulus in a particular way.(Weiten Psychology 8e p. 147)

Failure to see visible objects or events because one's attention is focused elsewhere.(Weiten Psychology 8e p. 147)

The process of detecting specific elements in visual input and assembling them into a more complex form.(Weiten Psychology 8e p. 148)

In form perception, progression from individual elements to the whole.(Weiten Psychology 8e p. 148)

In form perception, a progression from the whole to the elements.(Weiten Psychology 8e p. 148)

The perception of contrours where none actually exist.(Weiten Psychology 8e p. 148)

The illusion of movement created by presenting visual stimuli in rapid succession.(Weiten Psychology 8e p. 149)

Stimuli that lie in the distance (that is, in the world outside the body).(Weiten Psychology 8e p. 151)

The stimulus energies that impinge directly on sensory receptors.(Weiten Psychology 8e p. 151)

An inference about which distal stimuli could be responsible for the proximal stimuli sensed.(Weiten Psychology 8e p. 151)

Interpretation of visual cues that indicate how near or far away objects are.(Weiten Psychology 8e p. 152)

Clues about distance based on the differing views of the two eyes.(Weiten Psychology 8e p. 152)

A cue to the depth based on the fact that objects within 25 feet project images to slightly different locations on the left and right retinas, so the right and left eyes see slightly different views of the object.(Weiten Psychology 8e p. 153)

A cue to depth that involves sensing the eyes converging toward each other as they focus on closer objects.(Weiten Psychology 8e p. 153)

Clues about distance based on the image from either eye alone.(Weiten Psychology 8e p. 153)

Cue to depth that involves images of objects at different distances moving across the retina at different rates.(Weiten Psychology 8e p. 153)

Clues about distance that can be given in a at picture.(Weiten Psychology 8e p. 153)

A tendency to experience a stable perception in the face of continually changing sensory input.(Weiten Psychology 8e p. 157)

An apparently inexplicable discrepancy between the appearance of a visual stimulus and its physical reality.(Weiten Psychology 8e p. 157)

Objects that can be represented in two-dimensional pictures but cannot exist in three-dimensional space.(Weiten Psychology 8e p. 158)

The fluid- filled, coiled tunnel in the inner ear that contains the receptors for hearing.(Weiten Psychology 8e p. 162)

A structure that runs the length of the cochlea in the inner ear and holds the auditory receptors, called hair cells.(Weiten Psychology 8e p. 162)

The idea that perception of pitch corresponds to the vibration of different portions, or places, along the basilar membrane.(Weiten Psychology 8e p. 163)

The theory that perception of pitch corresponds to the rate, or frequency, at which the entire basilar membrane vibrates.(Weiten Psychology 8e p. 163)

Locating the source of a sound in space.(Weiten Psychology 8e p. 164)

The sensory system for taste.(Weiten Psychology 8e p. 165)

The sensory system for smell.(Weiten Psychology 8e p. 165)

The idea that incoming pain sensations must pass through a gate in the spinal cord that can be closed, thus blocking pain signals.(Weiten Psychology 8e p. 171)