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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. Famous for the theory of color blindness






2. 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






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






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






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






6. Best at seeing fine details






7. We see objects because of the light they reflect






8. 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






9. Defined the Just Noticeable Difference






10. The feeling that results from physical stimulation






11. 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.






12. 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


13. How we organize or experience sensations






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






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






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






17. 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.






18. 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






19. 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.






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






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






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






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


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






25. Is the tendency to make figures out of symmetrical images






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






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






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






29. Or overlap of objects shows which objects are closer






30. 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






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






32. Rightly stating that no stimulus exists






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






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






35. 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.






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






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






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






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






40. 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






41. 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.






42. 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






43. Comes from the complexity of the sound wave






44. 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.






45. Failing to detect a present stimulus






46. 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.






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






48. Proposed the opponent color/process theory






49. Also known as color - is the dominant wavelength of light






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