Gradually, with unfolding research, it became obvious that both hemispheres seemed to contribute to language, both to visuospatial imagery: both were involved in reason and both in emotion, which were inextricably involved with one another. In fact it didn't matter what it was our brains were engaged in doing, both hemispheres were in it
This is one of his prime theses. That the earlier sensationalist (now embedded in the zeitgeist) position that LHS does X and RHS does Y is found to be wrong.
