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






2. The feeling that results from physical stimulation






3. 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.






4. humans best hear at






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






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






7. How we organize or experience sensations






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






9. 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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10. 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.






11. 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.






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






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






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






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






16. 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






17. 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






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






19. Defined the Just Noticeable Difference






20. Best at seeing fine details






21. 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.






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






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






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






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






27. 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






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






29. Why do cones see better than rods?






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






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






32. 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






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






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






35. 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'






36. 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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37. Failing to detect a present stimulus






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






39. Along the visual pathway is the...






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






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

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






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






44. Asserts that perception and cognition are largely innate






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






46. Correctly sensing a stimulus






47. 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.






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






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






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.