EXP 4204- Midterm Exam Guide - Comprehensive Notes for the exam ( 29 pages long!)

• School: FIU
• Department: Experimental Psychology
• Course: EXP 4204
• Professor: Ali Pournaghdali

Document Summary

A jnd is the smallest amount of physical change observers notice as a perceptual change. The measures and methods of psychophysics: method of limits, method of constant stimuli, method of adjustment, magnitude estimation, signal detection theory. Imagine that a researcher presents you with an increasingly dimmer set of lights. You are asked to tell the experimenter when the lights are no longer visible. In assessing thresholds, we often need to estimate the threshold and try to compensate for any sensory adaption that is occurring, such as whether a person has just eaten. The smallest difference in weight that can be detected is the difference threshold, equal to 1 jnd: similarly, an observer might see two green lights and be asked if the lights are the same or not. We want to determine a person"s absolute threshold for a red light in an otherwise dark environment.