Development of chemical elements, compounds, and various chemical processes. It is of the utmost importance to be aware of the details of the behavior segments which are the primary units of psychological event fields. These actions are mutual and reciprocal, and are usually build up in previous confrontations of the organism and the stimulus object or condition. The reciprocity feature of psychological interbehavior are well represented by the double headed arrow as in Fig. Next we must take into account the media of contact which constitutes an enabling condition for the interbehavior of organisms and stimulus objects.
Examples are the light and air waves which mediate visual and auditory interactions.
An equally important set of factors constitute the setting or framework of the behavior segments. Such are the specific conditions which influence the occurrence or nonoccurrence of a particular interbehavior, and also the specific way the activity is carried out. Finally, it must be pointed out that each behavior segment is abstracted from the grand continuum of behavior. Accordingly, each segment is derived from and influenced by the previous segments making up the organism's interbehavioral history and exerts important influences upon the immediately following behavior segments. The precise merits of interbehavioral psychology is a thorougoing naturalism devoid of any transcendental principle, and moreover it is fully capable of adequately treating every type of psychological behavior whether performed by human or on human animals.