PSYCH 101 Chapter Notes - Chapter 19: Occipital Lobe, Color Vision, Retina
13 Mar 2017
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Ch 19: vision - sensory and perceptual processing. Wavelength: the distance from the peak of one light or sound wave to the peak of the next. Hue: the dimension of color that is determined by the wavelength of light. What we know as color names (red, green, etc) Intensity: the amount of energy in a light or sound wave. Cornea bends light to provide focus and then focuses through the pupil. Pupil: the adjustable opening in the center of the eye which light enters. Iris: a ring of muscle tissue that forms the colored part around the pupil that controls size. Lens: transparent structure behind pupil that changes shape to help focus images to the retina. Retina: light sensitive inner surface of the eye, containing the receptor rods and cones plus layers of neurons that begin the processing of visual information. Accommodation: the process by which the eye(cid:359)s lens changes shape to focus near or far objects onto the retina.
