When Jaxon stares at a red object for a period of time and then looks at a white surface, she sees a green afterimage of the red object. This phenomenon is best explained by

Rationale

The opponent-process theory explains the green afterimage seen by Jaxon.

This phenomenon occurs because the opponent-process theory posits that color perception is controlled by opposing pairs of colors. When Jaxon stares at a red object, the red receptors become fatigued, and when she looks away, the green receptors become more active, leading to the perception of a green afterimage.

A (the opponent-process theory) CORRECT

The opponent-process theory describes how color perception is influenced by opposing colors. In this case, staring at red causes the red-sensitive cones to become less responsive, while the green-sensitive cones remain active. When shifting focus to a white surface, the relative activation of the green receptors results in the perception of a green afterimage.

B (the trichromatic theory) YOUR ANSWER

The trichromatic theory explains color vision through the combination of three types of cones sensitive to red, green, and blue light. While it accounts for color perception, it does not explain the phenomenon of afterimages, which involves the fatigue of opposing color receptors, making it unsuitable for explaining Jaxon's experience.

C (the gate-control theory) YOUR ANSWER

The gate-control theory pertains to pain perception and explains how signals are transmitted through the nervous system. It is unrelated to color perception and cannot provide insight into the afterimage effect Jaxon experiences, as it does not involve color processing at all.

D (Weber's law) YOUR ANSWER

Weber's law focuses on the perception of changes in stimuli and the relationship between the magnitude of a stimulus and the noticeable difference. While it plays a role in sensory perception, it does not address the specific phenomenon of color afterimages and is therefore not applicable to Jaxon's situation.

Conclusion

The green afterimage observed by Jaxon after staring at a red object is best explained by the opponent-process theory, which describes how opposing colors interact in the visual system. This theory effectively accounts for the fatigue of the red receptors and the subsequent dominance of the green receptors, leading to the perception of an afterimage. Other theories, such as trichromatic theory, gate-control theory, and Weber's law, do not adequately explain this visual phenomenon.

When Jaxon stares at a red object for a period of time and then looks at a white surface, she sees a green afterimage of the red object. This phenomenon is best explained by

The opponent-process theory explains the green afterimage seen by Jaxon.

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