Across
- 2. The point at which the optic nerve leaves the eye, creating an area in which no visual information can be detected because no receptor cells are located there
- 6. Retinal receptor cells that are concentrated near the center of the retina and that function in daylight and in well-lit conditions
- 7. A condition in which people who are blind have some spared visual capacities in the absence of any visual awareness
- 8. The process by which the focus of the eye is changed to allow near or distant objects to form sharp images on the retina
- 9. The brain's sensory switchboard, located on top of the brainstem; it directs messages to the sensory receiving areas in the cortex and transmits replies to the cerebellum and medulla - all senses but smell are processed here
- 11. The central focal point in the retina, around which the eye's cones cluster
- 13. The sense of the location of body parts in relation to the ground and each other
- 15. The sense of taste. Taste is at the threshold between the external (chemical) and internal (biochemical) worlds
- 19. Visual receptors in the eye, specifically rods and cones
- 21. The retinal image is blurred because the focal point of one or both eyes lies in front of, rather than on, the retina.; this allows you to see what is near you, but struggles with items far away
- 23. A tone's experienced highness or lowness; depends on frequency
Down
- 1. When one kind of sensory stimulus evokes the subjective experience of another
- 3. Inability to recognize familiar faces
- 4. The transparent structure behind the pupil that changes shape to help focus images on the retina
- 5. Olfactory chemical messages that are released outside the body by members of a species and that influences the behavior of other members of the species
- 8. A visual image that persists after a stimulus is removed
- 10. The height of a wave as measured from the highest point on the wave to the lowest point on the wave
- 12. Partial color blindness in which the eye contains only two types of cone photopigment instead of the typical three
- 14. The distance between two corresponding parts of a wave; determines color within vision and pitch within sounds
- 16. Retinal receptors that detect black, white, and gray; necessary of peripheral vision and twilight vision
- 17. A partial color blindness in which the eye contains only one type of cone photopigment instead of the typical three: everything appears in various shades of a single color
- 18. The light-sensitive inner surface of the eye, containing receptor rods and cones plus layers of neurons that begin the processing of visual information
- 20. A refractive error due to an abnormally short eyeball, which causes the image of close objects to be blurred because the focal point of one or both eyes lies behind, rather than on, the retina
- 22. The process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment