Psychology 1000 Chapter Notes - Chapter 5: Gestalt Psychology, Taste Bud, Sound
2 Dec 2012
School
Department
Course
Professor
111
PSYCH 1000 Full Course Notes
Verified Note
111 documents
Document Summary
Psychology 1000 chapter 5 notes (sensation and perception) Sensation is a stimuli-detection based process where sensory organs respond to and translate stimuli to our brain via nerve impulses. Perception is the act of processing the nerve impulses and giving them meaning: perception is part is a decision. Psychophysics studies the relationship between physical stimulus and psychological response: fechner was the father" of psychophysics. Absolute threshold refers to the intensity where a certain stimuli can be perceived properly. There is a range of uncertainty that people have when reacting to stimuli and that range is called an individual"s decision criterion. Weber"s law states that the difference is magnitude of the stimuli with which the comparison is being made. Weber"s law breaks down at the extremes of stimuli, however. The size of the difference threshold relative to the physical intensity of the test is constant. Example: if i= 50db and a jnd is reported at 55 db.
