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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. 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.






2. 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.






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






4. 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'






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






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






7. Is the tendency to complete incomplete figures






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






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

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






12. 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.






13. 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






14. Proposed the opponent color/process theory






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






17. 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.






18. Has monocular and binocular cues






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






20. Correctly sensing a stimulus






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






22. Or overlap of objects shows which objects are closer






23. Is the result of regeneration of retinal pigment






24. 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






25. 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






26. The physical intensity of light






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






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






29. 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






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






31. The most famous of all visual illusions. Two horizontal lines of equal length appear unequal because of the orientation of the arrow marks at the end. Inward facing arrow marks make the line appear shorter than another line of the same length with ou






32. Defined the Just Noticeable Difference






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






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






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






36. 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.






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






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






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






40. Located by the cornea






41. Consists of the bony labyrinth - a hollow cavity in the temporal bone of the skull with a system of passages comprising two main functional parts: The cochlea - dedicated to hearing; converting sound pressure patterns from the outer ear into electroc






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






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






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






45. Why do cones see better than rods?






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






47. Along the visual pathway is the...






48. Is the inability to recognize faces






49. Rightly stating that no stimulus exists






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