The literature on human aggression is large and diverse. Some of it is theory-driven, but much of it dwells on solving social problems rather than on building general models and research paradigms. This paper examines some of the research programs and theoretical emphases in aggression research and presents theory convergences to see how these intersections may generate hypotheses for future research. The discussion here centers on two assumptions: (1) Aggression is not a scientific term; it is a lay term and is used to describe a number of functionally different behaviors, all having in common the infliction of harm upon another person; and (2) Affective aggression is a response to some event or change in the environment, or to the mental representation of such an event. Some of the variables involved in human aggression are discussed so as to elaborate the processes that may be involved. Many aggression sequences begin with impulsive aggressive reactions to provocation and culminate in the learning of aggression as deliberate behavior. What then follows is a characteristic way in which the person construes subsequent social situations, making that person more or less likely to react aggressively to future provocations. (Three diagrams present examples of aggression theory models. Contains 35 references.) (RJM)