Adult Subcortex Processes Numbers with the Same Skill As Infants, Other Lower-Order Species (IMAGE)
Caption
Despite major brain differences, many species from spiders to humans can recognize and differentiate relative quantities. Adult primates, however, are the only ones with a sophisticated cortical brain system, meaning that the others rely on a subcortex or its evolutionary equivalent. Carnegie Mellon University scientists wanted to find out whether the adult human subcortex contributes to number processing at all. Published in the Proceedings of the National Academies of Sciences, their study found that the adult subcortex processes numbers at the same level as infants and perhaps other lower-order species, such as guppies and spiders.
Credit
Melissa Neely for Carnegie Mellon University
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