American Association for the Advancement of Science
Video: Chimpanzees have faster working memory than humans, according to study
Japanese scientist demonstrates the prowess of chimps in remembering in less than half a second the precise position and correct sequence of up to nine numbers on a computer screen
Steve Connor is the Science Editor of The Independent. He has won many awards for his journalism, including five-times winner of the prestigious British science writers’ award; the David Perlman Award of the American Geophysical Union; twice commended as specialist journalist of the year in the UK Press Awards; UK health journalist of the year and a special merit award of the European School of Oncology for his investigative journalism. He has a degree in zoology from the University of Oxford and has a special interest in genetics and medical science, human evolution and origins, climate change and the environment.
Thursday 14 February 2013
Chimpanzees have a faster working memory than humans according to a remarkable study showing that it takes them a fraction of a second to remember something that it would take several seconds for humans to memorise.
A Japanese scientist has demonstrated the prowess of chimps in remembering in less than half a second the precise position and correct sequence of up to nine numbers on a computer screen.
The numbers are shown together randomly distributed on a computer screen and as soon as the chimps press the number “one” the rest of the numerals are masked. However, they can almost invariably remember where each number was.
It is impossible for people to do the same cognitive task that quickly, said Tetsuro Matsuzawa, a primatologist at Kyoto University. “They have a better working memory than us,” he told the American Association for the Advancment of Science meeting in Boston.
Professor Matsuzawa had carried out the memory experiments on a female chimp called Ai, which means “love” in Japanese, and Ayumu, her son who was born in 2000 and has shown even better memory skills, he said.
Professor Matsuzawa suggested that chimps have developed this part of their memory because they live in the “here and now” whereas humans are thinking more about the past and planning for the future.
In the wild they also have to make very quick spatial decisions such as the exact positions in a tree of ripe fruit and the precise location of potential enemies in a rival troupe of chimps, he told The Independent.
Videos of Ayumu and Ai show just how good they are at the task, better than any humans that have tried the same test apart from certain individuals who suffer from Asperger’s syndrome.
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