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13 Cards in this Set

  • Front
  • Back
Total color blindness due to congenital absence of cone cells
The x-axis. The independent variable is plotted on the abscissa.
Absolute threshold
the lowest level of intensity of a stimulus at which its presence or absence can be correctly detected 50% of the time.
size constancy
the tendency to perceive an object as of the same size in spite of variations in retinal image size, which occur when we move away from an object.
The weakening or elimination of a conditioned response by the learning of a new response that is incompatible with, and stronger than, the one to be extinguished. It is used in therapy to replace unacceptable responses with acceptable ones.
6 Cues of Depth Perception
-Interposition (Overlap)
-Relative Size
-Linear perspective
-Texture gradients
-Motion parallax
-Binocular disparity (Stereopsis)
Interposition (Overlap)
If one object covers another, the partially hidden object is seen farther away
Relative size
Comparison of retinal size of object to actual size of objects gives cue to depth
Linear perspective
Parallel lines appear to converge as they recede into the distance
Texture gradients
As scene recedes from viewer, the surface texture of the object appears to change
Motion parallax
When observer moves, objects in a stationary environment appear to move relative to distance from observer
Binocular disparity (Stereopsis)
Each eye sees a slightly different scene; when the brain combines the scenes, we get perception of depth
What's the difference between Top-Down and Bottom-Up Processing?
Top-down (Conceptually driven) is guided by conceptual processes such as memories and expectations that allow the brain to recognize whole objects THEN components.

Bottom-up (Data-driven) responds to parts on the basis of fixed rules and then sums up components to arrive at a whole pattern.