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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. The optic nerve is made up of...






2. 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.






3. 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






4. 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






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






6. 1. closure 2. Proximity 3. Continuation or good continuation 4. Symmetry 5. Constancy 6. Minimum principle






7. Located by the cornea






8. 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.






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






10. The physical intensity of light






11. The eyes are connected to the cerebral cortex by...






12. The most famous of all visual illusions. Two horizontal lines of equal length appear unequal because of the orientation of the arrow marks at the end. Inward facing arrow marks make the line appear shorter than another line of the same length with ou






13. Is the upper limit above which the stimuli can no longer be perceived. -The highest pitch sound a human could hear






14. Famous for the theory of color blindness






15. 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

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16. Developed the visual cliff to study whether depth perception was innate






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






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






19. Defined the Just Noticeable Difference






20. 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'






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






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






23. Proposed the tri-color theory - research shows that the opponent-process theory seems to be at work in the Lateral geniculate body - research shows that the tri-color theory seems to be at work in the Retina






24. 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.






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






26. Refers to the relationship between the meaningful part of a picture and the background






27. Is the tendency to create a whole or detailed figure based on our expectations rather than what is seen






28. The physical intensity of a sound wave largely determines loudness






29. 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.






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






31. Best at seeing fine details






32. Where half of all fibers from the optic nerve of each eye cross over and join the optic nerve from the other eye. This insures input from each eye will be put together in a full picture in the brain.






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






34. Proposed the perceptual development and optic array






35. Electrical impulses travel down these to the brain - where the information is understood






36. Is the tendency to see what is easiest or logical to see






37. Objects that have been drawn and can be perceived but are geometrically impossible






38. Or overlap of objects shows which objects are closer






39. Is knowing the color of an object even with tinted glasses on






40. 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.






41. Is the inability to recognize faces






42. Found that infants prefer relatively complex and sensational displays






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






44. How we organize or experience sensations






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

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46. After images are perceived because of fatigued receptors. Because our eyes have a partially oppositional system for seeing colors - such as red-green or black-white - once on side is overstimulated and fatigued - it can no longer respond and is overs






47. 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






48. Consists of the parts you see called the pinna and the auditory canal. Vibrations from sound move down this canal to the middle ear.






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






50. The pace of vibrations or sound waves per second for a particular sound - determines pitch. Frequencies are measured in Hertz