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






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






3. The feeling that results from physical stimulation






4. 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.






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






6. 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






7. Failing to detect a present stimulus






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






9. 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.






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






11. 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






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






13. 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.






14. How we organize or experience sensations






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






16. 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.






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






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






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






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






21. The physical intensity of light






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






23. Saying you detect a stimulus that is not there






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






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






26. We see objects because of the light they reflect






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






28. Why do cones see better than rods?






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






30. 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'






31. Best at seeing fine details






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






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






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






35. 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






36. Or overlap of objects shows which objects are closer






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






38. Proposed the perceptual development and optic array






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






40. Comes from the complexity of the sound wave






41. Involves both innate/sensory and is partially learned/conceptual






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






43. 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.






44. 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.






45. 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.






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

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






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






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