The Fact That We Experience Negative Afterimages Is Taken as Support

question 5

Multiple Choice

The fact that we experience negative afterimages is taken as support for the

• A) notion that the retina contains three types of photopigments.
• B) importance of color mixing in the visual system.
• C) opponent-process theory of color vision.
• D) idea that the visual system performs an algebraic summation of lights to generate a color perception.
• E) trichromatic theory of color vision.

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Definitions:

EMG

Electromyography, a diagnostic procedure to assess the health of muscles and the nerve cells that control them.

EEG

Short for electroencephalogram, a test that measures electrical activity in the brain using small, flat metal discs attached to the scalp.

ECG

An electrocardiogram, a diagnostic tool that measures and records the electrical activity of the heart to detect cardiac abnormalities.

Action Potentials

Rapid changes in the membrane potential that briefly reverse the polarity of a neuron or muscle cell, allowing for signal transmission.