Term
| Absolute Refractory Period |
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Definition
The minimum length of time after an action potential during which another action potential
cannot begin. |
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Definition
| The minimum amount of stimulation that an organism can detect for a specific type of sensory input. |
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Definition
| Changing existing mental structures to explain new experiences. |
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Definition
| An inherited characteristic that increased in a population (through natural selection) because it helped solve a problem of survival or reproduction during the time it emerged. |
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Definition
| Formation of colors by superimposing lights, putting more light in the mixture than exists in any one light by itself. |
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Definition
| A visual image that persists after a stimulus is removed. |
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Definition
| Orientations that locate objects of thought on dimensions of judgment. |
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Definition
| Locating the source of a sound in space. |
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Definition
| A structure that runs the length of the cochlea in the inner ear and holds the auditory receptors, called hair cells. |
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Definition
| Clues about distance based on the differing views of the two eyes. |
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Definition
| In form perception, progression from individual elements to the whole. |
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Definition
| The fluid-filled, coiled tunnel in the inner ear that contains the receptors for hearing. |
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Definition
| Deficiency in the ability to distinguish among colors. |
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Definition
| People, objects, events, and other standards that are used as a baseline for comparisons in making judgments. |
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Definition
| Pairs of colors that produce gray tones when added together. |
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Definition
| Specialized visual receptors that play a key role in daylight vision and color vision. |
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Definition
| A cue to depth that involves sensing the eyes converging toward each other as they focus on closer objects. |
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Definition
| The process in which the eyes become more sensitive to light in low illumination. |
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Definition
| Interpretation of visual cues that indicate how near or far away objects are. |
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Definition
| Stimuli that lie in the distance (that is, in the world outside the body). |
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Term
| Door-in-the-face Technique |
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Definition
Making a large request that is likely to be turned down as a way to increase the chances
that people will agree to a smaller request later. |
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Term
| Electroencephalograph (EEG) |
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Definition
| A device that monitors the electrical activity of the brain over time by means of recording electrodes attached to the surface of the scalp. |
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Term
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Definition
| The entire family of internally produced chemicals that resemble opiates in structure and effects. |
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Definition
| A vision deficiency in which distant objects are seen clearly but close objects appear blurry. |
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Definition
| The process of detecting specific elements in visual input and assembling them into a more complex form. |
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Definition
| Neurons that respond selectively to very specific features of more complex stimuli. |
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Definition
| A psychophysical law stating that larger and larger increases in stimulus intensity are required to produce perceptible increments in the magnitude of sensation. |
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Definition
| A tiny spot in the center of the retina that contains only cones; visual acuity is greatest at this spot. |
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Definition
| The theory that perception of pitch corresponds to the rate, or frequency, at which the entire basilar membrane vibrates. |
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