PSYCH 100 Lecture Notes - Lecture 9: Sclera, Nociceptor, Cochlea
14 Dec 2018
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Document Summary
Sensory receptors cell is a specialized cell in your sense organ that detects stimuli and transmit that information to the brain. Study of the relationship between physical characteristics of stimuli and out psychological experience of them: light brightness/color volume/pitch, sound volume/pitch, pressure weight/pain, taste sweetness/saltiness/etc. The transformation of physical energy into neural impulses by sensory receptors. *threshold > the level of stimulation required to trigger a neural impulse. Predicts how and when we detect the presence of a faint stimulus (signal) when the stimulus is presented or not. Assumes that there is no universal absolute threshold some people"s senses are stronger than those of others. Detection also depends partly on person"s: experience, expectations, motivation, level of fatigue. When stimuli are below one"s absolute threshold for consciousness awareness. Just because we don"t consciously detect a stimulus doesn"t mean we don"t detect it al all. Minimum discrepancy between 2 stimuli required for detection of the difference 50% of the time.
