Across
- 4. smallest level of energy required by an external stimulus to be detectable by the human senses.Can detect stimulus 50 % of time
- 6. receptor cells in the eye that helps see fine details and helps us in bright rooms/outside
- 7. a purplish-red light sensitive pigment present in the retinas in humans in animals
- 8. raised disk on the retina at the point of entry of the optic nerve, lacking visual receptors creating a blind spot
- 9. developed by psychologist Jean Piaget to describe what occurs when new information or experiences cause you to modify your existing schemas.
- 10. the minimum difference in stimulation that a person can detect 50 percent of the time
- 13. In mathematics and physics, ____ _____ states that, as the ratio between the magnitudes of two stimuli increases, the more easily the difference between the two stimuli will be perceived.
- 14. small depression in the retina of the eye where visual acuity is highest.
- 15. recepters in he eye that detect movement
Down
- 1. states that subjective sensation is proportional to the logarithm of the stimulus intensity
- 2. Figure/ground, similarity, proximity, closure, good continuation and symmetry/order are all _____ principles
- 3. a theory of color and how humans perceive color. According to this theory, the human retina contains three different receptors for color
- 4. the ability to adjust to new information and experiences
- 5. biconvex structure in the eye that, along with the cornea, helps to refract light to be focused on the retina
- 8. suggests that color perception is controlled by activity of three opponent systems. Developed by Ewald Hering
- 11. transparent layer forming the front of the eye
- 12. white outer layer of the eyeball