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GRE Psychology: Perception Sensation

Subjects : gre, psychology
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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. Also known as color - is the dominant wavelength of light

3. Why do cones see better than rods?

4. Refers to the relationship between the meaningful part of a picture and the background

5. 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

6. 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.

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

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

9. Located by the cornea

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

11. 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.

12. The physical intensity of light

13. 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

14. Defined the Just Noticeable Difference

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

16. 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.

17. Is the tendency to complete incomplete figures

18. 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

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

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

21. Or overlap of objects shows which objects are closer

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

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

24. 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.

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

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

27. 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

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

29. Comes from the complexity of the sound wave

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

31. Found that infants prefer relatively complex and sensational displays

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

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

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

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

36. All the things a person sees trains them to perceive

37. Saying you detect a stimulus that is not there

38. Famous for the theory of color blindness

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

40. The feeling that results from physical stimulation

41. The part of the world that triggers a particular neuron

42. Rightly stating that no stimulus exists

43. Correctly sensing a stimulus

44. 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

45. Along the visual pathway is the...

46. Is the result of regeneration of retinal pigment

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

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

49. 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.

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