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Biology / Biochemistry News

Basic Math In Monkeys And College Students

Main Category: Biology / Biochemistry
Article Date: 17 Dec 2007 - 17:00 PDT

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Adult humans possess mathematical abilities that are unmatched by any other member of the animal kingdom. Yet, there is increasing evidence that the ability to count sets of objects nonverbally is a capacity that humans share with other animal species. This week in the open-access journal PLoS Biology, Elizabeth Brannon and Jessica Cantlon set out to discover whether humans and nonhuman animals also share a capacity for nonverbal arithmetic.

The researchers tested monkeys and college students on a nonverbal arithmetic task in which they had to add the numerical values of two sets of dots together and choose a stimulus from two options that reflected the arithmetic sum of the two sets.

The results indicate that monkeys perform approximate mental addition in a manner that is remarkably similar to the performance of the college students. These findings support the argument that humans and nonhuman primates share a cognitive system for nonverbal arithmetic, which likely reflects an evolutionary link in their cognitive abilities.

Citation: Cantlon JF, Brannon EM (2007) Basic math in monkeys and college students. PLoS Biol 5(12): e328. doi:10.1371/journal.pbio.0050328 Please click here

http://www.plosbiology.org

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