ABSTRACT
In the last chapter it was suggested that all phasic motor impulses are compelled to combine with, or to conflict with, the tonic motor impulses continuously discharging in a pattern which may be called, for convenience, our natural reflex equilibrium. 1 In the manufacture of pleasantness and unpleasantness we had supposed a qualitatively simple relationship to exist between phasic and tonic impulses. That is, a simple one-to-one relationship. If this ultimately simple, one-to-one relationship existed in fact, we should have no variable in the equation except the degree of alliance or antagonism existing between tonic and phasic impulses. In such a theoretically simplified equation, we might expect to find sheer pleasantness or sheer unpleasantness without any further complicating factors due to the quantities of the two units brought together. But the moment we consider a combination of tonic and phasic impulses where one group or the other clearly predominates in quantity, a new set of integrative relationships appears.
