The majority of activation was occurring in the frontal lobes, where
conscious thought occurs — and they were taking much, much longer to answer the questions.
I can not but
think that the most important step forward that has
occurred in psychology since I have been a student of that science is the discovery, first made in 1886, that, in certain subjects at least, there is not only the consciousness of the ordinary field, with its usual centre and margin, but an addition thereto in the shape of a set of memories,
thoughts, and feelings which are extra-marginal and outside of the primary consciousness altogether, but yet must be classed as
conscious facts of some sort, able to reveal their presence by unmistakable signs.