76. 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
Answer: A
The phenomenon is best explained by the opponent-process theory.
When Jaxon stares at a red object and subsequently sees a green afterimage on a white surface, this visual experience aligns with the opponent-process theory. This theory posits that color perception is controlled by opposing pairs of colors, such as red and green, where prolonged exposure to one color can lead to the perception of its complementary color as an afterimage.
A) the opponent-process theory
This option is correct because the opponent-process theory specifically addresses how the visual system processes colors in pairs, which includes red and green as opposites. When Jaxon focuses on the red object, the receptors for red become fatigued, leading to the perception of green when she looks at a neutral surface afterward.
B) the trichromatic theory
This option is incorrect as the trichromatic theory explains color vision based on three types of cones that are sensitive to different wavelengths (red, green, and blue). While it provides a foundational understanding of color perception, it does not account for the afterimage effect, which is better explained by the opponent-process theory.
C) the gate-control theory
This option is incorrect because the gate-control theory pertains to the modulation of pain signals in the nervous system and does not relate to visual perception or color afterimages. It is irrelevant to the context of Jaxon's experience with color.
D) Weber’s law
This option is incorrect as Weber's law describes the principle that the just-noticeable difference between stimuli is a constant proportion of the original stimulus. It does not address color perception or afterimages, making it unrelated to the scenario presented.
E) the just-noticeable difference
This option is incorrect because the just-noticeable difference refers to the smallest change in a stimulus that can be detected, which does not relate to the afterimage phenomenon. It does not explain why Jaxon perceives green after staring at red.
Conclusion
The opponent-process theory effectively explains Jaxon's experience of seeing a green afterimage after looking at a red object, as it accounts for the fatigue of color receptors and the resulting perception of complementary colors. Other options fail to address the specific phenomenon of color afterimages, making them unsuitable in this context.