Figure 1.

Task structure of the Coin‐Guessing task (translated from Chinese). In each trial, participants predicted the outcome of a coin flip. Correct predictions corresponded to winning CNY 10, while incorrect predictions corresponded to losing CNY 10. During the No‐Opportunity trials (signified by the word, “RECORD”), participants had to enter their prediction as either “Heads” or “Tails” by pressing either the “H” or the “T” key. During the Opportunity trials (signified by the word, “RANDOM”), participants had to randomly press one of the two “R” keys to control for motor activity. Earnings during the Self trials (signified by the word, “SELF”) would go to the participants themselves, while earnings during Donation trials (signified by the name of a chosen charitable organization, written down here as “CHARITY”) would be donated to a chosen charitable organization