The experiment is concerned with the behavior of selected subjects in a simulated environment involving a modified war game. The subjects were selected and classified according to their particular level of integrative complexity. Seven integratively simple concrete and integratively complex abstract teams 4 Ss in each group participated in the tactical game. Each of the 7 periods of the game was varied by a controlled program of different amounts of informational input units. It was found that a curvilinear relationship existed between information diversity and load and perceptual complexity similar to the curvilinear relationship established between information load and performance complexity. It was also found that compared with more integratively simple persons, integratively complex individuals used a greater number of perceptually complex descriptions at all levels of information load and exhibited a greater level of integrations of past feedback. The results confirmed both hypotheses.