PSYCH 100 Midterm: Term Test 3 - Fall 2017
Document Summary
Physical world (the data) psychological world (the output: light brightness/color, sound volume, pressure weight, sugar sweet. Psychophysics= study of the relationship between physical characteristics of stimuli and our psychological experience with them. Attention: attention is selective; we can"t process everything at once instead we focus awareness on a set of sensations. Absolute threshold: minimum stimulation needed to detect a particular stimulus 50% of the time. Difference threshold: minimum difference between two stimuli needed to detect the change 50% of the time. Eye anatomy: retina: back of the eye, pick up info about light/color/movement, fovea: point of central focus, center of the back of the eye, optic nerve: connects eye to brains visual cortex, cones (6 million) Requires more light than rods: rods (120 million) Color vision is context dependent: be aware of surroundings, can influence sensory information. Ex) looks like green next to orange, but blue next to pink.
