PSYC 1001 Chapter Notes - Chapter 4: Color Vision, Organism, Cochlea
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Gradually increases. specific sense can detect. size of the initial stimulus: weber"s fraction the fractions that apply to different sensory inputs until a. Increases constantly proportionately: signal-detection theory the detection of stimuli involves decision processes, along as sensory. Processes, which are both influenced by a variety of factors besides stimulus intensity: noise background distractions that lower the chance of detection of a stimulus, subliminal perception the registration of sensory input without conscious awareness. i. Such as subliminal messages in movies, advertisements, etc. John krosnick experimented and found that subliminal stimulation generally produces weak effects: sensory adaptation the gradual decline in sensitivity to prolonged stimulation, ex. You jump in cold water; it is very cold at first, but you get used to it: process that keeps people tuned into the changes rather than constants in sensory input, sight, the stimulus: light, the eye.
