Dishonesty is a slippery slope: If you behave dishonestly once, you may become more likely to do so again in the future, a new study from England shows.
The reason may be that the brain grow less sensitive to self-serving dishonest behavior over time, the researchers said.
In the study, researchers asked 80 adults ages 18 to 65 to advise a second person about the amount of money in a glass jar of pennies. In several of the trials, conditions made it so that dishonesty benefited the participant. For example, researchers might promise the participants a higher reward if their partners overestimated the number of pennies in the jar.