Sensation and perception - Sensation and perception...

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Sensation and perception Sensation: Process by which sensory receptors and nervous system receive and represent stimuli from environment Perception: process of organizing and interpreting sensory information which allows for recognition of objects and events Psychophysics: study of relationships between physical characteristics of stimuli Absolute Threshold o minimum stimulation necessary to detect a particular stimulus 50% of the time o 50-50 recognition point o Ie detecting light sound pressure taste odor Difference Threshold o Minimum difference between 2 stimuli required for detection 50% of the time o Also called “just noticeable difference” (JND) Weber’s Law o Principle that to be perceived as different, 2 stimuli must differ by a constant minimum percentage (constant ratio) rather than a constant amount Subliminal Stimulation o Stimuli presented below threshold o Priming Unconscious activation of certain associations which predisposes one’s perception, memory, or response
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Sensory Adaptation o Diminished sensitivity as a consequence of constant stimulation
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Sensation and perception - Sensation and perception...

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