PSYC 1010 Lecture Notes - Lecture 4: Hashish, Narcolepsy, Mescaline

• School: York University
• Department: Psychology
• Course: PSYC 1010
• Professor: Gerry Goldberg

Document Summary

Gradually increases: the absolute threshold is the stimulus intensity detected 50% of the time. vii. 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, 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, people need light to see, light form of electromagnetic radiation that travels as a wave at the speed of.