The textbook illustrated the production of negative afterimages by suggesting that readers stare at the center 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 colors did you "see" in the image of the heart on the white paper? How does opponent-process theory explain this finding?
What will be an ideal response?
Answer: 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 colors, as are blue and yellow.
• When the yellow and green are removed after staring at them, the cells that were signaling these colors briefly signal the presence of the antagonistic color.
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Compared with their European and Canadian counterparts, U.S. youths
A) become sexually active earlier. B) become sexually active later. C) are less likely to have had four or more sexual partners. D) are less likely to be sexually active.
Credibility of the communicator is used as a shortcut when people are motivated to
A) be consistent. B) be accurate. C) gain social rewards. D) gain social approval.