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Biomedical subjects

Dan Ariely

Publications and source records attributed to Dan Ariely.

2 recordsLinked to original sources

Procrastination, deadlines, and performance: self-control by precommitment.

Procrastination is all too familiar to most people. People delay writing up their research (so we hear!), repeatedly declare they will start their diets tomorrow, or postpone until next week doing odd jobs around the house. Yet people also sometimes attempt to control their procrastination by setting deadlines for themselves. In this article, we pose three questions: (a) Are people willing to self-impose meaningful (i.e., costly) deadlines to overcome procrastination? (b) Are self-imposed deadlines effective in improving task performance? (c) When self-imposing deadlines, do people set them optimally, for maximum performance enhancement? A set of studies examined these issues experimentally, showing that the answer is "yes" to the first two questions, and "no" to the third. People have self-control problems, they recognize them, and they try to control them by self-imposing costly deadlines. These deadlines help people control procrastination, hit they are not as effective as some externally imposed deadlines in improving task performance.

Behavior↗

The effect of past-injury on pain threshold and tolerance.

Forty male veterans who had been injured during their military service in the Israeli Defense Forces were assessed for pain threshold and tolerance in a thermal pain procedure. Based on their medical records, subjects were classified by three independent judges as having been either severely or lightly injured. Veterans who had been severely injured had much higher threshold and tolerance for thermal pain as compared to lightly injured veterans. These results are interpreted as supporting adaptation-level theory, which implies that painful experiences can change the internal anchor points for the subjective evaluation of pain.

Adaptation, Physiological↗