PSY 101 Chapter Notes - Chapter 19: Retina, Phi Phenomenon, Trichromacy

• School: Drexel University
• Department: Psychology
• Course: PSY 101
• Professor: Chute Doug

Document Summary

Physical characteristics of light help create the sensory experiment: wavelength- distance from one peak to the next, determines hue- the color we see. Intensity- the amount of energy in light waves determined by the waves" amplitude- height. Light enters the cornea- part of eye that bends light to provide focus. Light then passes through pupil- a small adjustable opening. Iris- surrounds pupil to dilate or contract in response to light intensity: also responds to emotional states. Lens- located behind the pupil to focus light rays into an image the is displayed to the retina- a multilayered tissue found on the eyeball"s inner surface. Lens able to focus rays through accommodation- the process of changing curvature and thickness. Retina receives images upside down, but it does not see a whole image. Receptors actually convert light to impulses that are sent to the brain where the image is then processed.