Monkeys that grab the quick treat may be forgetting, not impatient
Monkeys who take a small quick treat instead of a bigger later one may simply forget what they chose. When researchers showed the monkeys their choice again just before the reward arrived, the monkeys waited far more often.
Why it matters
Scientists often test self-control by seeing whether an animal will wait for a bigger reward. Those tests are then used to study human problems like addiction, gambling and trouble planning ahead. This study suggests the animal version may be measuring memory rather than patience. Humans may work quite differently, so this changes how researchers should design tests rather than telling you anything about your own self-control.
Who's behind it: Ty Henley, Tara Dove-VanWormer and Robert R. Hampton, Emory University.
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