Sensation & Perception pt. 2

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Across
  1. 4. The adjustable opening in the center of the eye through which light enters.
  2. 6. Outermost layer that protects the eye and bends light to provide focus.
  3. 7. The theory that opposing retinal processes (red-green, yellow-blue, white-black) enable color vision.
  4. 11. A lab device for testing depth perception in infants and young animals
  5. 13. Retinal receptor cells that are concentrated near the center of the retina and that function in daylight or well-lit conditions.
  6. 15. Retinal receptors that detect black, white, and gray; necessary for peripheral and twilight vision.
  7. 16. The dimension of color that is determined by the wavelength of light.
  8. 17. Nerve cells in the brain that respond to specific features of the stimulus, such as shape, angle, or movement.
  9. 18. The light-sensitive inner surface of the eye, containing the receptor rods and cones plus layers of neurons that begin the processing of visual information.
  10. 19. The amount of energy in a light or sound wave, which we perceive as brightness or loudness, as determined by the wave’s amplitude.
  11. 20. An organized whole; these types of psychologists emphasize our tendency to integrate pieces of info. into meaningful wholes.
  12. 21. The central focal point in the retina, around which the eye's cones cluster
  13. 22. The nerve that carries neural impulses from the eye to the brain.
Down
  1. 1. The controversial claim that perception can occur apart from sensory input; includes telepathy, clairvoyance, and precognition. (2 words/separated by dash)
  2. 2. The theory that the retina contains three different color receptors which, when stimulated in combination, can produce the perception of any color.
  3. 3. A mental predisposition to perceive one thing and not another. (2 words/separated by dash)
  4. 5. The transparent structure behind the pupil that changes shape to help focus images on the retina.
  5. 8. The distance from the peak of one light or sound wave to the peak of the next.
  6. 9. The point at which the optic nerve leaves the eye, where no receptor cells are located.
  7. 10. Processing of many aspects of a problem simultaneously (brain uses it for vision).
  8. 12. German scientist & philosopher who studied our awareness of faint stimuli, later calling them our absolute thresholds.
  9. 14. A ring of muscle tissue that forms the colored portion of the eye around the pupil and controls the size of the pupil opening.