The textbook illustrated the production of negative afterimages by suggesting that readers stare at the centre of a green heart, edged in yellow. After 20 seconds, when the gaze was switched to a white paper, there was a "change of heart!" What colours did you "see" in the image of the heart on the white paper? How does opponent-process theory explain this finding?

Question

Quizplus · Accepted Answer

The Answer is A good answer will include the following key points.
- The heart appeared to be red, edged in blue.
- According to the opponent-process theory, red and green are encoded as antagonistic colours, as are blue and yellow.
- When the yellow and green are removed after staring at them, the cells that were signaling these colours briefly signal the presence of the antagonistic colour.

The Textbook Illustrated the Production of Negative Afterimages by Suggesting