PSYC 101 Lecture Notes - Lecture 6: Absolute Threshold, Habituation, Middle Ear
Document Summary
Would live entirely in our own minds; separate from one another. We would be unable to understand what all those sensations mean. Perception: interpretation, identification, and organization of sensory information (output/ process of input) Sensory receptors: specialized neurons in the sense organs: eyes, ears, nose, skin, taste buds. Absolute threshold: the point where a stimulus is perceived 50% of the time it is present. Just noticeable difference threshold: the smallest difference between 2 stimuli that is detectable 50% of the time. Habituation: tendency of the brain to stop noticing constant, unchanging information (brain forgets: attentional; can be voluntary. Sensory adaptation: tendency of sensory receptors to fatigue and stop responding to an unchanging stimulus (eye forgets ring on finger: physiological; involuntary. Microsaccades: (sacadic movement: tiny little vibrations; prevents sensory adaption to visual stimuli. Vision: most important sense, we perceive up to 80% of all impressions by means of our sight.
