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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 physical intensity of light






2. Rightly stating that no stimulus exists






3. Located by the cornea






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






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






6. The chemical that aids the receptor cells in transduction






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






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






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

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10. 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.






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






12. Along the visual pathway is the...






13. Comes from the complexity of the sound wave






14. 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.






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

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






17. 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.






18. Is the inability to recognize faces






19. Defined the Just Noticeable Difference






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






21. Best at seeing fine details






22. 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






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






24. 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.






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






26. The optic nerve is made up of...






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






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






29. How we organize or experience sensations






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






31. 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






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






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






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






35. Failing to detect a present stimulus






36. 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






37. Famous for the theory of color blindness






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






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






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






41. 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






42. The feeling that results from physical stimulation






43. 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.






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






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






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






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






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






50. Saying you detect a stimulus that is not there







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