The preferential use of one hand over the other to perform certain tasks is a feature that reflects the functional division of the brain in the execution of a series of tasks. These findings are especially important from an evolutionary point of view and could explain the emergence of language or technology when this feature is present in humans.
This is a guest post for the Blog Action Day 2010, an annual event held every October 15 that unites the world’s bloggers in posting about the same issue on the same day with the aim of sparking a global discussion and driving collective action. This year's topic is water.
Iwith.org thanks Ruben his participation in the Blog Action Day.