Can monkeys count? Debates about the numerical abilities of animals have raged among neuroscientists for decades. In a Perspective, [Dehaene][1] discusses exciting new work ([Nieder][2] et al .) showing that neurons in the lateral prefrontal cortex of the macaque brain encode numbers up to the number five. [1]: http://www.sciencemag.org/cgi/content/full/297/5587/1652 [2]: http://www.sciencemag.org/cgi/content/short/297/5587/1708
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Stanislas Dehaene (2002) studied this question.
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