PSYC 1010 Lecture Notes - Lecture 4: Color Vision, Torsten Wiesel, Visual Cortex

• School: York University
• Department: Psychology
• Course: PSYC 1010
• Professor: Agnieszka Kopinska

Document Summary

Sensation is the stimulation of sense organs, the detection of physical energy by our sense organs, including our eyes, ears, skin, nose and tongue. Sensory receptors detect environmental stimuli and convert stimulus energy into electro- chemical signals (vision, hearing, smell, taste, touch, etc. o. Perception is the the brain"s interpretation of raw sensory inputs that allows us to assemble these signals into something meaningful through selection, organization, and interpretation, of sensory input. Just noticeable difference (jnd) is the smallest difference in the amount of stimulation that specific sense can detect. Hits (detecting signals when they are present) Misses (failing to detect signals when they are present) False alarms (detecting signals when they are not present) Correct rejections (not detecting signals when they are absent) Subliminal perception is the registration of sensory input without conscious awareness. o. Sensory adaptation is a gradual decline in sensitivity due to prolonged stimulation. Candle flame seen at approximately 50km on a.