CHEM 1010H Lecture Notes - Lecture 4: Detection Theory, Subliminal Stimuli, Absolute Threshold
13 Mar 2018
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Document Summary
Synesthesia is a condition in which perceptual or cognitive activities like listening to music or reading trigger exceptional experiences of for example color or taste. Perception is the selection, organization, and interpretation of sensory input. Psychophysics is the study of how physical stimuli are translated into physical experience. Signal detection theory proposes that the detection of stimuli involves decision process as well as sensory processes which are both influenced by a variety of factors besides stimulus intensity. Subliminal perception is the registration of sensory input without conscious awareness. Sensory adaption sensory adaptions is a gradual decline in sensitivity due to prolonged stimulation our senses of sight: the visual system. The stimulus: light light is a form of electromagnetic radiation. Visual spectrum is only a slim portion of the total range of wavelengths. Other animals can see more then just the visual spectrum for humans. The lens is the transparent eye structure that focuses the light rays falling on the retina.
