PSYC 101 Lecture Notes - Lecture 14: Color Vision, Receptive Field, Color Blindness

• School: UBC
• Department: Psychology
• Course: PSYC 101
• Professor: Steven Barnes, Grace Truong

Document Summary

Make study guide of learning outcomes for midterms! Basic registration of light, sound, pressure, taste, odor. Perception the organization, identification and interpretation of a sensation to form a mental representation. External physical signals (physical energy) --> encoded neural signals sent to central nervous system. Using subjective measures such as introspection just doesn"t work. Methods that measure the strength of a stimulus and the observer"s sensitivity to that stimulus. The minimal intensity needed to just barely detect a stimulus in 50% of trials. Gradual change that happens (how fast it changes depends on the individual) Measure sensitivity for detecting a faint stimulus. Minimal change in a stimulus that can just barely be detected. The jnd of a stimulus is a constant proportion despite variations in intensity. The response to a stimulus depends on a person"s sensitivity to the stimulus in the presence of noise and a persons decision criterion. All other stimuli coming from the internal and external environment.