ABSTRACT
An aim of this chapter is to illustrate how physiological psychology has developed in the last hundred years by taking a nineteenth-century theory of emotion, and showing how it is now becoming possible to delineate the actual information processing that takes place in the brain to implement emotion, thus helping to provide a firm foundation for a theory of emotion. This chapter also points to some issues that should be solved in the first part of the twenty-first century, and to another, the problem of consciousness, that may still be debated for a long time, but to which cognitive neuroscience is bringing much new insight.
