GRE Subject Test: Psychology : Perceptual Organization

Study concepts, example questions & explanations for GRE Subject Test: Psychology

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Example Questions

Example Question #1 : Perceptual Organization

Which of the following does not act as a cue for depth perception?

Possible Answers:

None of these

Motion parallax

Binocular disparity

Interposition

Dark adaptation

Correct answer:

Dark adaptation

Explanation:

In 1709, George Berkeley noted various depth cues in the human visual system, including interposition, which refers to the depth cue wherein one object covers or overlaps with another object. A second cue is motion parallax wherein the disparity in speed and motion gives us cues about the relative depth of parts of the object. The last cue is binocular disparity, also known as stereopsis. This cue is linked to the fact that our different eyes provide us with two slightly different views of the world around us. When the brain adds together these two images, we get a perception of depth.

Example Question #3 : Sensation & Perception

Sensory integration can be best describe as which of the following?

Possible Answers:

A change in afference caused by external stimuli

The process of combining different sensory signals

When a mixture of lights add together and create the perception of color

None of these

A mathematical technique for computing definite integrals of one real variable

Correct answer:

The process of combining different sensory signals

Explanation:

The correct answer is the process of combining different sensory signals. To give cause or equal opportunity to each sense and a mathematical technique for computing definite integrals of one real variable are answers that utilize the incorrect definition of integration for this problem. When a mixture of lights add together and create the perception of color is additive color mixture. 

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