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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. Best at seeing fine details






2. 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






3. 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.






4. 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






5. 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.






6. Is the tendency to complete incomplete figures






7. Or overlap of objects shows which objects are closer






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






9. Located by the cornea






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






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






12. 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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13. Why do cones see better than rods?






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






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






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






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






18. 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'






19. 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






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






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






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






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






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






26. 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.






27. Rightly stating that no stimulus exists






28. Asserts that perception and cognition are largely innate






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






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






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






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






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






34. 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.






35. 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






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






37. 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






38. 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






39. 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.






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






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






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






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






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

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46. 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.






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






48. 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.






49. Correctly sensing a stimulus






50. How we organize or experience sensations






Can you answer 50 questions in 15 minutes?



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