The Capture of One Photon of Light in a Photoreceptor

question 68

Multiple Choice

The capture of one photon of light in a photoreceptor can block the entry of _______ Na⁺ ion(s) .

• A) one
• B) thousands of
• C) hundreds of thousands of
• D) millions of

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Definitions:

Similarity

A principle in psychology that items that are similar in some aspect are more likely to be grouped together in the perceptual process.

Common Fate

A principle of Gestalt psychology where individuals tend to perceive elements as part of a group if they move together in the same direction.

Linear Perspective

A system of creating an illusion of depth on a flat surface by converging parallel lines at a single point on the horizon.

Retinal Disparity

A binocular cue for perceiving depth based on the differences in the images seen by each eye because of their different perspectives, enabling three-dimensional perception.