PSYC 1F90 Chapter Notes - Chapter Modules 17-21: Sensory Analysis, Color Vision, Wavelength
4 Jan 2018
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Document Summary
Info arriving from the sense organs creates sensations. A sensation is a sensory impression- the process of detecting physical energies with the sensory organs: when the brain organizes sensations into meaningful patterns, we speak of perception. Considerable selection occurs because sensory receptors do not transduce all the energies they encounter: psychophysics: study of the relationship between physical stimuli and the sensations they evoke in a human observer. Psychophysical research has shown that sense receptors transduce only part of their target energy range. We have no real conscious control over what energy ranges in our senses can transduce, analyze or encode. Likewise it is quite difficult to consciously control sensory adaption: selective attention- is a different capability, one that you can control- giving priority to a particular incoming sensory message. Stimuli that are brighter, louder, or larger tend to capture attention: attention also is frequently related to contrast or change in.
