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| for each type of sensory judgment that we can make, the measured difference threshold is a constant fraction of the standard stimulus value used to measure it. This constant fraction is different for each type of sensory judgment |
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| the actual physical intensity raise to some constant power for each type of sensory judgment |
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| the conversion of physical energies into neural signals that the brain can understand |
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| the focusing of light waves from objects of different distances directly on the retina |
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| responsible for dim light and peripheral vision |
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| responsible for bright light and color vision |
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| a tiny pit in the center of the retina filled with cones |
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| a theory of color vision which assumes that there are three opponent-process cell systems which process color information after it has been process by the cones |
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Definition
| hearing lost by damage to hair cells |
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| hearing lost by damage to one of the structure in the ear |
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| a theory of pitch perception which assumes that there is a specific location along the basilar membrane which will maximally respond to a particular frequency, thereby indicating the pitch to the brain |
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Definition
| a theory of pitch perception which assumes that the frequency of the sound wave is mimicked by the firing rate of the tntire basilar membrane |
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Definition
| cells taking turns firing will increase the maximum firing rate for a group of cells |
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| the interpretation of ambiguous sensory information in terms of how our past experiences have set us to perceive it |
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| the use of the present context of sensory information to determine its meaning |
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| figure-and-ground principle |
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Definition
| the Gestalt perceptual organizational principle that the brain organizes sensory information into a figure of figures and ground |
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Definition
| the perceptual stability of the size, shape, brightness, and a color for familiar objects seen at varying distances, different angles, and under different lighting conditions |
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| a binocular depth cue referring to the fact that as the disparity between the two retinal images of an object increases, the distance of the object from us decreases |
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| a monocular depth cue referring to the fact that if one object partially blocks our view of another, we perceive it as closer to us |
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| a monocular depth cue referring to the fact that as parallel lines recede away from us, they appear to converge--the greater the distance, the more they seem to converge |
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