Abstract
Simulation in orgonomics research is defined as purposeful experimentation on models of work situations. The operator, who determines the functional relationship between stress and strain, is interpreted as the unit of individual mental working capacity. A theory of mental stress, built up with concepts from formal logic, systems theory and information theory, is presented. Three simulators of mental stress, constructed from the theoretical concept, arc introduced. A measurement of strain with cardiac parameters is mentioned. Several concepts for the evaluation of individual mental working capacity are discussed.