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14 Cards in this Set
- Front
- Back
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the processes that organize information in the sensory image and interpret it as having been produced by properties of objects or events in the external, three-dimensional world
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perception
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the process by which stimulation of a sensory receptor gives rise to neutral impulses that result in an experince, or awareness, of conditions inside or outside the body
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sensation
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the processes that put sensory information together to give the perception of a coherent scene over the whole visual field
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perceptual organization
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two ways of attaching meaning to percepts
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identification and recognition
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in the processes of perception, the physical object in the world, as contrasted with the proximal stimulus, the optical image on the retina
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distal stimulus
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the optical image on the retina; contrasted with the distal stimulus, the physical object in the world
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proximal stimulus
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the study of the correspondence between physical simulation and psychological experience
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psychophysics
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the minimum amount of physical energy needed to produce a reliable sensory experience, operationally defined as the stimulus level at which a sensory signal is detected half the time
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absolute threshold
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a graph that plot the percentage of detections of a stimulus (on the verticle axis) for each stimulus intensity ( on the horizontal axis)
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psychometric function
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a phenomenon in which receptor cells lose their power to respond after a period of unchanged stimulations; allows a more rapid reaction to new sources of information
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sensory adaption
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the systematic tendency as a result of nonsensory factors for an observer to favor responding in a particular way
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response bias
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a systematic approach to the problem of response bias that allows an experimenter to identify and separate the roles of sensory stimuli and the individual's criterial level in producing the final response
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signal detection theory
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the smallest physical difference between the two stimuli that can still be recognized as a difference; operationally difined as the point at which the stimuli are recognized as different half of the time
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difference threshold
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the smallest difference between two sensations that allows them to be discriminated
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just noticeable difference (JND)
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