Two heads aren’t always better than one, at least when it comes to memory.
People who memorize facts in groups remember less than solo students do, according to a newly published overview of memory research. The group as a whole remembers more than any single memorizer would have, but the people in the group fail to live up to their full memory potential, each recalling less than if they’d studied alone.
On the other hand, according to study researcher Suparna Rajaram, a psychologist at Stony Brook University in New York, other people’s memories can enrich our own, as can be attested by anyone who suddenly recalls a long-ago event when another person starts telling a story.
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