PSYC 1010 Lecture Notes - Optic Chiasm, Trichromacy, Complementary Colors

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

Document Summary

Selection, organization, and interpretation of sensory input. The study of how physical stimuli are translated into psychological experience. Fechner the concept of the threshold (cid:173) absolute threshold smallest strength of a stimulus that can be detected 50% of the time (cid:173) difference threshold (jnd) smallest difference that can be detected. Weber"s law size of jnd proportional to size of initial stimulus. Sensory adaptation gradual decline in sensitivity to a constant stimuli. Signal detection theory sensory processes + decision processes. Subliminal perception existence vs. practical effects. 5 major senses (cid:173) vision, hearing, touch, taste, smell. Other less obvious senses (cid:173) kinesthetic and vestibular (cid:173) touch : heat, cold, pressure, pain. Purpose: (cid:173) transform light energy into a electrochemical neural response (cid:173) represent characteristics of objects in our environment such as size, color, shape, and location. Light can be described as both a particle and a wave. Wavelength of a light is the distance of one complete cycle of the wave.