Affordances and Prospective Control: An Outline of the Ontology

Actions must be controlled prospectively. This requires that the behavioral possibilities of surface layouts and events be perceived. In this article, the ontolog- ical basis for an understanding of prospective control in realist terms is outlined. The foundational idea is that of affordances and the promoted ontology is materialist and dynamicist. It is argued that research in the ecological approach to prospective control is ultimately the search for objective laws. Because lawfulness is equated with real possibility, this amounts to the study of the affordances (the real possibilities) underlying prospective control and the circumstances that actualize them. The ontological assumptions and hypotheses bearing on this latter proposal are articulated. It is suggested that critical evaluation of the identified ontological themes may benefit the experimental and theoretical study of perception in the service of activity.