AI Article Synopsis
- Research suggests that the act of throwing has historically been linked to the development of left hemisphere brain functions related to language.
- Two samples of captive chimpanzees were observed, revealing a notable tendency for right-handed throwing behaviors.
- These findings may support theories about the evolutionary connection between throwing abilities and the development of language-related brain lateralization.
Article Abstract
Humans throw right-handed, and it has been suggested that the neurophysiological demands of aimed throwing may have served as a precursor to the evolution of left hemisphere specialization for linguistic functions. Although there are descriptions of throwing by wild and captive chimpanzees (Pan troglodytes), systematic observations of aimed throwing and handedness have not been reported. In this article, evidence of population-level right-handedness for throwing is reported in 2 samples of captive chimpanzees. It is further reported that right-handed throwing is more pronounced than other measures of handedness in captive chimpanzees. The implications of these findings are discussed in the context of theories relating throwing to the evolution of lateralization for language functions.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2680150 | PMC |
| http://dx.doi.org/10.1037/0735-7036.119.4.363 | DOI Listing |
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