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snail - shaped structure of the inner ear that is filled with fluid
Cochlea
Cycles or waves per second, a measurement of frequency
Hertz
The visible part of the ear
Pinna
the use of two eyes for perceiving depth
Binocular Cues
Visual sensory receptors found at the back of the retina
Rods
the tendency for parallel lines to appear to form into one
Linear Perspective
The lowest level of stimulation that a person can consciously detect.
Absolute Threshold
Color vision that proposes visual neurons are stimulated by light of one color and inhibited by the light of another color (Red, Green, Blue, Yellow)
Opponent Process Theory
How we perceive depth based on one eye only
Monocular Cues
Images that occur when a visual sensation persists for a brief time even after the original stimulus is removed
Afterimages
The process that occurs when special receptors in the sensory organs are activated, allowing forms of outside stimuli to become neural signals in the brain
Sensation
The tendency to perceive things in a certain way because of previous experiences or expectations influencing those perceptions
Perceptual Set
Visual sensory receptors found everywhere in the retina
Cones
The smallest difference between two stimuli that is detectable
Just Noticeable Difference
The tendency for surfaces to appear to become smaller and finer as the distance from the viewer increases
Texture Gradient
Depth Perception
The ability to perceive the world in three dimensions
The method by which the sensations experienced at any given moment are interpreted and organized in some meaningful fashion
Perception
The perception that occurs when objects that a person expects to be of a certain size appear to be small and are, therefore, assumed to be much farther away
Relative Size
The rotation of the two eyes to focus on a single object
Convergence
Theory of color vision that proposes three types of cones
Trichromatic Theory
The haziness that surrounds objects that are farther away from the viewer
Aerial Perspective
The perception of motion in which close objects appear to move more quickly than objects that are farther away
Motion Parallax
Theory of pitch that states that pitch is related to the speed of vibrations in the basilar membrane
Frequency Theory
The psychological experience of sound that corresponds to the frequency of the sound waves
Pitch
The tendency to interpret an object as always being the same actual size, regardless of its distance
Size Constancy