Across
- 3. The visual pigment (purple) found in the membrane discs of the distal segments of rods.
- 5. The outer white covering of the eye.
- 6. A small area in the retina of the eye packed with cones. The most sensitive part of the retina for detail vision and color vision in the daylight.
- 7. The minimal difference in stimulus magnitude necessary to tell two stimuli apart.
- 11. A theory stating that each cone cell contains three classes of color receptors (red, blue and green).
- 12. The transparent body lying behind the iris and pupil.
- 13. What does the saying "The whole is greater than the sum of the parts" relate to?
- 17. A photoreceptor responsible for vision under dimply lit conditions.
- 18. Called "the blind spot" because there are no receptors in this part of the retina.
Down
- 1. Reduced sensitivity to stimulation that results from repeated presentations of that stimulus.
- 2. A retinal photoreceptor responsible for color vision.
- 4. The amount of stimulation necessary to result in a "just noticeable difference". It is a constant fraction of the stimulus intensity (variable = k).
- 6. A law describing the relationship between psychological and physical events. [s=k(logI)]
- 8. A theory of color perception that postulated two types of color-sensitive units that respond in opposite ways to the two colors of an opponent pair.
- 9. The minimum magnitude of a stimulus that can be reliably discriminated.
- 10. The minimum amount a stimulus must change in order for the change in sensation to be detected 50% of the time.
- 14. The cognitive of revising existing cognitive schemas, perceptions, and understings so that new information can be incorporated.
- 15. The bending of light rays as they pass from one medium to another.
- 16. The transparent covering of the eye.