PSY100H1 Chapter 4: Module - 4
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PSY100H1 Full Course Notes
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Module 4. 1 + 4. 2 + 4. 3 + 4. 4. Sensation = process of detecting external events by sense organs and turning those stimuli into neural signals. Perception = attending, organizing, and interpreting stimuli that we sense. Transduction = when specialized receptors transform physical energy of outside world into neural impulses. Doctrine of speci c nerve energies different senses are separated in brain (johannes m ler) Sensory receptors are most responsive upon initial exposure to a stimulus. Orienting response = how quickly we shift our attention to stimuli that signal a change in our sensory world. Sensory adaptation = reduction of activity in sensory receptors with repeated exposure to stimulus. The more intense the original stimulus, the larger the amount of it that must be added for the difference threshold to be reached. Signal detection theory = whether a stimulus is perceived depends on on both sensory experience and judgment. Sensory process = faint stimulus or no stimulus at all.
