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GRE Psychology: Perception Sensation

Subjects : gre, psychology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Is the tendency to see what is easiest or logical to see






2. It travels through the horizontal cells to the bipolar cells to the amacrine cells. Finally the information heads to the ganglion cells.






3. The chemical that aids the receptor cells in transduction






4. Rods and cones on the retina that are responsible for sensory transduction.






5. Rightly stating that no stimulus exists






6. Are particularly sensitive to dim light and are used for night vision. They are also concentrated along the sides of the retina - making them extremely important for peripheral vision






7. Located in the back of the eye - receives light images from the lens. It is composed of about 30 million photoreceptor cells and of other cell layers that process information






8. The clear protective coating on the outside of the eye






9. Is composed of photons and waves measured by brightness and wavelengths






10. Allows the eyes to see contrast and prevents repetitive information from being sent to the brain. Once the receptor cell is stimulated - the others nearby are inhibited.






11. Suggests that subjects detect stimuli not only because they can but also because they want to. TSD factors motivation into the picture.


12. Applies to all senses but only to a limited range of intensities. The law states that a stimulus needs to be increased by a constant fraction of its original value in order to be noticeably different


13. Is the minimum amount of stimuli that can be detected 50% of the time






14. Refers to the entire span that can be perceived or detected by the eye at a given moment.






15. Are concentrated in the center of the retina. They are sensitive to color and daylight vision.






16. Also known as just noticeable difference. The minimum difference that must occur between two stimuli - in order for them to be perceived as having different intensities.






17. Suggests that there are three types of receptors in the retina: cones that respond to red - blue - or green






18. A theory for color vision. It suggests that two types of color sensitive cells exist: Cones that respond to blue-yellow colors and cones that respond to red-green. When one color of the cone is stimulated - the other is inhibited.






19. Discovered that cells in the visual cortex were so complex and specialized that they respond to certain types of stimuli. For example - some cells only respond to vertical lines - whereas some respond to only right angles.






20. The tendency to perceive a smooth motion. This explains why motion is perceived when there is none - often by the use of flashing lights or rapidly shown still-fram pictures - such as in the perception of cartoons. This is apparent motion






21. Revolves around perception and asserts that people tend to see the world as comprised of organized wholes. The world is understood through top-down processing.






22. Refers to how we see texture or fine detail differently from different distances






23. Proposed the perceptual development and optic array






24. How we organize or experience sensations






25. Or overlap of objects shows which objects are closer






26. Consists of one optic nerve connection each eye to the brain.






27. Is when two horizontal lines of equal length appear unequal because of two vertical lines that slant inward






28. A thick layer of glass above a surface that dropped off sharply. The glass provided solid - level ground doe subjects to move across in spite of the cliff below. Animals and babies were used as subjects and both groups avoided moving into the 'cliff'






29. The way that a single point of light viewed in darkness will appear to shake or move. the reason for this is the movement of our own eyes






30. Famous for the theory of color blindness






31. Ambiguous figures - such as the Rubin vase. They can be perceived as two different things depending on which part you see as the figure and which part you see as the background.






32. The physical intensity of light






33. Located by the cornea






34. Takes place when receptors for a particular sense detect a stimulus.






35. He tendency to group together items that are near each other






36. How people perceive objects in the way that they are familiar with them - regardless of changes in the actual retinal image. A book - for example - is perceived as rectangular in shape no matter what angle it is seen from.






37. Proposed the opponent color/process theory






38. The moon looks larger when we see it on the horizon than when we see it in the sky. This is because the horizon contains visual cues that make the moon seem more distant than the overhead sky.






39. Factors into why we see what we expect to see






40. The overarching Gestalt idea that experience will be organized as meaningful - symmetrical - and simple whenever possible.






41. Why do cones see better than rods?






42. The part of the world that triggers a particular neuron






43. Allow the cornea to bend (accommodate) in order to focus an image of the outside world onto the retina






44. 1. Reception 2. Sensory Transduction 3. Neural Pathways






45. Defined the Just Noticeable Difference






46. Asserts that perception is the sum total of sensory input. The world is understood through bottom-up processing






47. Found that infants prefer relatively complex and sensational displays






48. Is the result of regeneration of retinal pigment






49. The center of the retina; has the greatest visual acuity






50. Says that the strength of a stimulus must be significantly increased to produce a slight difference in sensation