Of all of the ways in which personality psychology
might evolve in
the twenty-first century, we think that the clearest
prediction that
can be made is that biological perspectives will be
increasingly
important. The availability of neuroimaging techniques to
observe
brain processes is enhancing the knowledge of the relationship of
brain and behaviour. These advances, combined with a better
understanding
of neurochemistry, are likely to contribute to the
development of more
sophisticated models of the biological basis
of individual differences.
(p. 375)