PSYCH 1 Lecture Notes - Lecture 25: Absolute Threshold, Psychophysics, Olfaction
Document Summary
Stimulus detection process by which our sense organs respond to and translate environmental stimuli into nerve impulses which are then sent to the brain. Received by sensory receptors such as light, sound, chemical and pressure. Feature detectors analyze stimulus features constructed into a neural representation. Neural representation is then compared to what was previously stored in the brain. Matching process results in recognition and interpretation of stimuli (given meaning) Perception selection, organization and the interpretation of sensory input. Making sense of what our processes are telling us. Active process in organizing stimulus that it is input, and giving meaning. Psychophysics the study of how physical stimuli are translated into psychological experience. Stimulus information in the environment that is picked up by the receptors in our. Absolute threshold detected 50% of the time. Difference threshold (aka just noticeable difference (jnd) The smallest difference between two similar stimuli that people can detect.
