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14 Cards in this Set
- Front
- Back
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Sensation |
the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment. |
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Perception |
the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events. |
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Bottom-up processing |
analysis that begins with the sensory receptors and works up to the brain's integration of sensory information. |
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Top-down processing |
information processing guided by higher-level mental processes, as when we construct perceptions drawing on our experience and expectations. |
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Transduction |
conversion of one form of energy into another. In sensation, the transforming of stimulus energies, such as sights, sounds, and smells, into neural impulses our brain can interpret. |
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Psychophysics |
the study of relationships between the physical characteristics of stimuli, such as their intensity, and are psychological experiences of them. |
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Absolute threshold |
The minimum stimulation needed to detect a particular stimulus. |
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Signal detection theory |
A theory predicting how and when we detect the presence of a faint stimulus |
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Subliminal |
Below one's absolute threshold for conscious awareness. |
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Priming |
The activation of certain association predisposing one's perception, memory, or response. |
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Difference threshold |
The minimum difference between two stimuli. |
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Weber's law |
Two stimuli must differ by a given percentage. |
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Sensory adaptation |
Diminished sensitivity. |
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Perceptual set |
Perceive one thing and not another. |
