Psychology 1000 Lecture Notes - Lecture 5: Detection Theory, Absolute Threshold, Stimulus Modality

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Mike Atkinson

Document Summary

Sensation process by which stimuli are detected, transduced into nerve impulses, and sent to the brain. Perception the process of organizing stimulus input and giving it meaning (making sense of what our senses tell us association) Sensory processes process whereby physical stimuli are translated into nerve impulses (wide range) and the sensory experiences they evoke (the limits of sensitivity & differences in sensitivity) Transduction the conversion of one form of energy into another; in sensation, the. Psychophysics the study of relations between physical characteristics of stimuli. Absolute threshold the lowest intensity at which stimulus can be detected. Subliminal stimulus a stimulus that is received by the sense but not perceived. Signal detection theory a theory that assumes that stimulus detection is not based. Decision criterion in signal detection theory, the potentially changing standard of. Difference threshold the smallest difference between two stimuli that people can.