Journal
NEURON
Volume 39, Issue 2, Pages 201-204Publisher
CELL PRESS
DOI: 10.1016/S0896-6273(03)00424-0
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Funding
- NIMH NIH HHS [K01 MH002022-02] Funding Source: Medline
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Evidence suggests homologies in parietofrontal circuits involved in object prehension among humans and monkeys. Likewise, tool use is known to induce functional reorganization of their visuotactile limb representations. Yet, humans are the only species for whom tool use is a defining and universal characteristic. Why? Comparative studies of chimpanzee tool use indicate that critical differences are likely to be found in mechanisms involved in causal reasoning rather than those implementing sensorimotor transformations. Available evidence implicates higher-level perceptual areas in these processes.
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