PSYCH 100 Lecture Notes - Lecture 13: Opponent Process, Neural Adaptation, Color Vision

• School: UMASS-Amherst
• Department: Psychology & Brain Sciences
• Course: PSYCH 100
• Professor: Tammy Rahhal

Document Summary

Processes of converting physical world into mental representation (transduction) And relaying that information to the brain (conduction) Variation of air pressure experience of sound. Process by which we select organize, interpret these mental representations. Ex. we can recognize the color green we can distinguish bach from bruno mars. Psychophysics the study of the relationship between physical characteristics of stimuli (energy) and our psychological experience of them. Smallest magnitude of stimulus that can be reliably discriminated from no stimulus at least 50%of the time just noticeable difference. Ex. smell as opposed to nothing hear as opposed to nothing. Predicts how and when we will detect the presence of a stimulus amidst background stimulation. Complex decision mechanisms are involved to determine of a stimulus exists. Based on stimulus strength, our experiences: expectations, motivation, level of fatigue. Sounds in my house when alone for the first time. Absolute thresholds and just noticeable differences are not fixed.