Causal beliefs lead to toolmaking, which require handedness for motor control

Behavioral and Brain Sciences 26 (2):242-242 (2003)
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Toolmaking requires motor skills that in turn require handedness, so that there is no competition between the two sides of the brain. Thus, handedness is not necessarily linked to vocalization but to the origin of causal beliefs required for making complex tools. Language may have evolved from these processes.



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The Expression of the Emotions in Man and Animals.Charles Darwin - 2018 - Mineola, New York: Courier Dover Publications.
Philosophical Investigations.Ludwig Wittgenstein - 1953 - New York, NY, USA: Wiley-Blackwell.
Aspects of the Theory of Syntax.Noam Chomsky - 1965 - Cambridge, MA, USA: MIT Press.

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