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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. Located by the cornea






2. 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.






3. Proposed the perceptual development and optic array






4. Comes from the complexity of the sound wave






5. humans best hear at






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






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






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






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






10. Curces are graphical representations of a subject'S sensitivity to a stimulus






11. Correctly sensing a stimulus






12. 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.






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






14. Rightly stating that no stimulus exists






15. Along the visual pathway is the...






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






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






18. 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'






19. All the things a person sees trains them to perceive






20. Begins with the tympanic membrane (eardrum) which is stretch across the auditory canal. Behind this membrane are the Ossicles (3 small bones) - the last of which is the stapes. Sound vibrations bump against the tympanic membrane - causing the ossicl






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






22. 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






23. How movement is perceived though the displacement of objects over time - and how this motion takes place at seemingly different paces for nearby or faraway objects. Ships far away seem to move more slowly than ships moving at the same speed.






24. Proposed the opponent color/process theory






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






26. Is gained by features we are familiar with - such as two seemingly parallel lines that converge with distance






27. Is the way that perceived color brightness changes with the level of illumination in the room. With lower levels of illumination - the extremes of the color spectrum (especially red) are seen as less bright






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






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. Found that infants prefer relatively complex and sensational displays






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






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






33. Saying you detect a stimulus that is not there






34. 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.






35. Has been explained as the increasing ability of a child to make finer discriminations among stimuli.






36. Can be perceived as two different things depending on how you look at them






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






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






39. 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.






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






41. Is the inability to recognize faces






42. Knowing that an elephant is large no matter how it might appear






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






44. Has been called the most important depth cue. Our eyes view objects from two slightly different angles - which allows us to create a 3-dimensional figure






45. 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.






46. The physical intensity of light






47. Failing to detect a present stimulus






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






49. 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.






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

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Can you answer 50 questions in 15 minutes?



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