PSYC 100 Lecture Notes - Lecture 4: Detection Theory, Gustav Fechner, Rarefaction

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 100
• Professor: A.George Alder

Document Summary

Strictly involved the stimulation of the sense organs. Involves selection, organization, and interpretation of sensory inputs. Dividing point between energy levels that do and do not have a noticeable. Minimum amount of stimulation than an organism can detect for a specific. Different senses have different thresholds. minimum difference between two stimuli for the person to be able to detect them also known as just noticeable difference (jnd) Candle flame at 50 km on a clear night. Tick of a watch at 6 m in a quiet room. One teaspoon of sugar in 2 gallons of water. 1 drop of perfume in a 3 room apartment. The wing of a bee falling on your cheek from 1cm. Signal detection theory and the diagnosis of learning disabilities. Distance from middle of wave to top = amplitude (we learned this in gr 9/10 physics) Iii. perception of sound: place theory, frequency theory. 1000-5000 hz volley & place coding over 5000 hz place coding.