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






2. Comes from the complexity of the sound wave






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. 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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5. 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.






6. Correctly sensing a stimulus






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






9. 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






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






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






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






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






14. 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






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






16. 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






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






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






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






20. 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






21. Best at seeing fine details






22. 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.






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






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






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






26. 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.






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






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






29. 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.






30. The physical intensity of light






31. 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.






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






34. The feeling that results from physical stimulation






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






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






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






38. Proposed the opponent color/process theory






39. Located by the cornea






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






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






43. Famous for the theory of color blindness






44. 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






45. Is the tendency to complete incomplete figures






46. 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'






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






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






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






50. 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