Psychology 1000 Lecture Notes - Natural Rubber, James Vicary, Psychophysiology

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Prof

Document Summary

Psychophysics relation between physical stimulus and psychological response. Value of a stimulus characteristics require to produce some response. Taste: tsp. of sugar in 8l of water. Smell: 1 drop of perfume in a 6 room apt. Touch: wing of a fly falling on cheek from 1cm. Size of difference threshold relative to physical intesity of test is constant. If i = 50db and a jnd is reported at 55 db. Whats a jnd @ 100 db new test + 10 = 110 db or new test - 10 = 90 db. The relative difference is: can compare sensitivity of different systems. Sensation increases with logarithm of intensity (don"t need to calculate) More predictive across a variety of sensations, best law out of three (don"t need to calculate) In general, no evidence that subliminal cuts influence consumer behaviour. Priming - show a subliminal image thats related to an image, before showing. S = k log i ^ n the real image.