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11 Cards in this Set
- Front
- Back
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Sensation |
Activation of receptors by stimuli in the environment |
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Perception |
The process of organizing and making sense of sensory information transduction transductiontra |
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Transduction |
Conversion of stimuli received by the receptors into a form that can be used by the nervous system |
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Adaption |
Loss of sensitivity to a stimulus by the receptors as a result of continued presentation of the stimulus |
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Webers law |
The observation that the amount of stimulus increase or decrease required to notice a, change divided by the original stipulation is a constant |
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Just noticeable difference(JNS) |
Smallest difference between two stimuli that is noticeable 50% of the time by participants |
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Absolute threshold |
Minimum amount of energy required for conscious detection of a stimulus 50% of the time by participants |
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Differential threshold |
Smallest amount of stimulation that must be added to or subtracted from an existing stimulus for a person to be able to detect a change 50% of the time |
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Signal detection theory |
The contention that the threshold varies with the nature of the stimulus and with signal stimulation |
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Sub liminal stimuli |
Stimuli that are below the threshold of conscious awareness |
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Wavelength |
Physical links of a lightwave measured in nano meters |
