Sensation and Perception Review

2. Retinal receptors that are concentrated near the center of the retina and that function in daylight or in well-lit conditions.
6. The central focal point in the retina, around which the eye’s cones cluster.
8. the eye’s clear, protective outer layer, covering the pupil and the iris.
9. An organized whole. Emphasize our tendency to integrate pieces of information into meaningful wholes.
10. Conversion of one form of energy into another. In sensation, the transforming of stimulus energies.
11. the perceptual tendency to organize stimuli into coherent groups.
12. The process of organizing and interpreting sensory information, enabling us to recognizing meaningful objects and events.
14. The minimum difference between two stimuli required for detection 50 percent of the time.
17. Nerve cells in the brain’s visual cortex that responds to specific features of the stimulus, such as shape, angle, or movement.
19. Diminished sensitivity as a consequence of constant stimulation.
20. a small, adjustable opening in the center of the eye through which light enters.

1. the process by which the eye’s lens changes shape to focus near or far objects on the retina.
3. the sense of smell.
4. Failing to notice changes in the environment.
5. Retinal receptors that detect black, white, and gray, and are sensitive to movement; necessary for peripheral and twilight vision.
7. Our sense of body movement and position that enables our sense of balance.
13. the focusing of our conscious awareness on a particular stimulus.
15. The minimum stimulus energy needed to detect a particular stimulus 50 percent of the time.
16. a coiled, bony fluid filled tube in the inner ear.
18. A ring of muscle tissue that forms the colored portion of the eye around the pupil and controls the size of the pupil opening.