I. Topic: Sensory Processes Involved in Vision

II. Purpose: To help students learn the complex vocabulary used in describing visual sensory processes.

III. Description: Matching Exercise

A common complaint among students about introductory psychology is that there are so many terms to learn. No where is this more true than in the biological phenomena covered in introductory psychology. Included among these topics is vision. This matching exercise will aid students in learning the terminalogy used to describe visual sensory processes.

IV. Procedure:

1. Have students complete the following matching exercise by following the directions.

Instructions: Next to each term, place the letter of the statement that best corresponds to the term.

a. The psychological counterpart of wavelength; often referred to as color.

b. The point at which the optic nerve leaves the back of the eye.

c. A small muscle that relaxes or contracts in response to the amount of light passing through the cornea.

d. Farsightedness.

e. The process our eyes go through adapting to decreased levels of illumination.

f. The transparent structure at within the eye that changes shape, depending on whether we are looking at objects far away or nearby.

g. A visual disorder caused by a misshapen cornea.

h. In a beam of light, the distance between two crests.

i. Light-sensitive receptors found in the retina, but not the fovea.

j. Hering's theory that there are 3 sets of color receptors in the visual system. Stimulation of one member of a set produces the sensation of the corresponding color.

k. Keenness of vision.

l. The thin layer of receptors, the rods and cones, that lines the interior of the back of the eye.

m. The number of wavelengths found in a beam of light.

n. The small area forming the center of the retina.

o. The process by which the lens focuses light on the retina.

p. The phenomenon in which a color looks brighter as the background color becomes darker.

q. The opening of in the eye that controls the amount of light entering the eye.

r. The psychological counterpart of purity.

s. The main neural pathway that carries visual information from the eye to the brain.

t. The process by which our eyes adapt to increasing levels of illumination.

u. The psychological counterpart to amplitude.

v. Nearsightedness.

w. Young and Helmholtz's theory that human eye has receptors sensitive to red, green, and blue.

x. The transparent fluid-filled cover at the front of the eye through which light passes.

y. The height of a wave of light.

z. Color sensitive receptors found primarily in the fovea.