PSYC 1020H Lecture Notes - Lecture 4: Leuciscus, Analgesic, Simple Cell

• School: Trent University
• Department: Psychology
• Course: PSYC 1020H
• Professor: Kateryna Keefer

Document Summary

Synesthesia is a condition in which perceptual or cognitive activities (ex/ listening to music, reading) trigger exceptional experiences (ex/ colour, taste). Sensation is the stimulation of sense organs while perception is the selection, organization, and interpretation of sensory input. Psychophysics is the study of how external/physical stimuli are detected and translated into internal/psychological experiences. The 2 interacting processes: sensation = detecting, perception = translating. Sensation begins with a stimulus (any detectable input from environment) Gustav fechner wanted to know what was defined as detectable (ex/ what a dog detects we may not) The level of light intensity at which the gadget activates is its threshold. An absolute threshold is the smallest amount of stimulation needed to detect a stimulus 50% of the time: determines the limit of sensory abilities. A candle flame seen at 50km on a dark clear night. The tick of a watch under quiet conditions at. Amount of sugar in coffee before it begins to taste sweet.