Is there a correlation between ambiguity of the hands/feet/body with the Left and Right Hemispheres increased Activity of the Brain?
In "western" cultures, often times they use forks and spoons (both hands) and in "eastern" cultures they use chopsticks (one hand) and holding the bowl (other hand).
I have been told to use both hands because it stimulates both sides of the brain. Whenever I don't use both hands, I am teased that half my brain is asleep.
Any theories or elaborations you know of?