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






2. The feeling that results from physical stimulation






3. 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.






4. Is the inability to recognize faces






5. Proposed the opponent color/process theory






6. 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






7. humans best hear at






8. 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.






9. 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.






10. After the optic chasm - information travels to the...






11. The physical intensity of light






12. Correctly sensing a stimulus






13. Involves both innate/sensory and is partially learned/conceptual






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






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






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






17. 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'






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






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


20. Located by the cornea






21. 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.






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


23. 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






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






25. The chemical that aids the receptor cells in transduction






26. Gives us clues about how far away an object is if we know about how big the object should be






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






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






29. 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






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






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






32. We see objects because of the light they reflect






33. Best at seeing fine details






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






35. Asserts that perception and cognition are largely innate






36. Along the visual pathway is the...






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






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






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






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






41. 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.






42. 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






43. 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.






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






45. Individuals are partly motivated by rewards and costs in detection. The interplay between response bias and stimulus intensity determines responses






46. 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






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






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






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






50. 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.