PSYC 1000 Lecture Notes - Lecture 3: Optic Nerve, Auditory Cortex, Visual Cortex

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1000
• Professor: Anneke Olthof

Document Summary

Sensation and perception: what"s the difference? the visual system the active process of perception the auditory system. Sensation: you look with your eyes, you see with you brain, stimulus detection process, organs translate stimuli into nerve impulses. Psychophysics studies relations between physical characteristics of stimuli and sensory capabilities. 6/10/15: concerned with two kinds of sensitivity. Lower absolute threshold = greater sensitivity: smallest difference between two stimuli that can be detected 50% of. Jnd is proportional to the magnitude of the stimulus with which the comparison is being made i. e. it is more difficult to detect a given difference between two magnitudes if those magnitudes are large instead of small. Harder to detect a difference of 1 jellybean if comparing jars of 1000 vs 999 beans than if comparing jars of 2 vs 3 beans diminishing sensitivity to unchanging stimulus, occurs in.