The Dual-Brain Hypothesis is Obsolete, it is known now that both sides do everything...
But I remember reading a case by Erickson. it was about a girl who was married, then she wrote something like, "will I marry John?", and then Erickson instructs her to write "what a nice day in August"... she divorced and got married to John in August... and then she found the paper she wrote...
Erickson, in his comments there writes that there r dominant and non-domanant parts in each Hemisphere... I think he hinted at the presence of 4 parts...
there is some work done in this area (4-part division) suggesting the presence of a time lag between the two sides... that time lag appears in both body language, AND speech... with the lag indicating a switch to "the other side"...
Any similar work done anywhere? or do u still adhere to the Dual-Brain Hypothesis?