Hopkins William D, Russell Jamie L, Cantalupo Claudio
Division of Psychobiology, Yerkes National Primate Research Center, Emory University, Atlanta, GA 30322, USA.
Psychol Sci. 2007 Nov;18(11):971-7. doi: 10.1111/j.1467-9280.2007.02011.x.
It has been hypothesized that cognitive mechanisms underlying lateralized complex motor actions associated with tool use in chimpanzees may have set the stage for the evolution of left-hemisphere specialization for language and speech in humans. Here we report evidence that asymmetries in the homologues to Broca's and Wernicke's areas are associated with handedness for tool use in chimpanzees. These results suggest that the neural substrates of tool use may have served as a preadaptation for the evolution of language and speech in modern humans.
有假说认为,黑猩猩中与工具使用相关的复杂单侧化运动行为背后的认知机制,可能为人类左半球语言和言语特化的进化奠定了基础。在此,我们报告证据表明,布罗卡区和韦尼克区的同源区域的不对称性与黑猩猩工具使用的手偏好有关。这些结果表明,工具使用的神经基础可能为现代人类语言和言语的进化提供了一种预适应。