PSYC 1 Chapter Notes - Chapter 19: Retina, Interposition, Subjective Constancy
Document Summary
Psyc 1 textbook notes module 19: vision: sensory and perceptual processing. Wavelength: distance from the peak of one light/sound wave to the peak of the next. Hue: dimension of the color that is determined by the wavelength of light; color. Intensity: amount of energy in light wave/sound wave, influences what we perceive as brightness/loudness; determined by amplitude/height. Pupil: adjustable opening in center of the eye; light enters. Iris: ring of muscle tissue around pupil; controls size of pupil opening: can also respond to cognitive and emotional states. Lens: transparent; behind pupil; changes shape to help focus images on retina. Retina: light-sensitive inner surface of eye; receptor rods and cones, layers of neurons that begin processing visual information. Accommodation: eye"s lens changes shape to focus near/fear objects on retina. Rods: retinal receptors that detect black, white, gray; peripheral and twilight vision. Cones: retinal receptor cells; concentrated in center of retina; daylight or well-lit conditions; fine detail; color sensations.
