Across
- 3. the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment
- 9. the focusing of conscious awareness on a particular stimulus
- 10. a ring of muscle tissue that forms the colored portion of the eye around the pupil and controls the size of the pupil opening
- 11. the adjustable opening in the center of the eye through which light enters
- 13. the light-sensitive inner surface of the eye, containing the receptor rods and cones plus layers of neurons that begin the processing of vital information
- 15. information processing guided by higher-level mental processes, as when we construct perceptions drawing on our experience and expectations
Down
- 1. failing to notice changes in the environment
- 2. the transparent structure behind the pupil that changes shape to help focus images on the retina
- 4. the process by which the eye's lens changes shape to focus near or far objects on the retina
- 5. retinal receptors that are concentrated near the center of the retina and that function in daylight or in well-lit conditions. The cones detect fine detail and give rise to color sensations
- 6. analysis that begins with the sensory receptors and works up to the brain's integration of sensory information
- 7. the nerve that carries neural impulses from the eye to the brain
- 8. the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events
- 12. the point at which the optic nerve leaves the eye, creating a "blind" spot because no receptor cells are located there
- 14. retinal receptors that detect black, white, and gray; necessary for peripheral and twilight vision, when cones don't respond