The Modal Logic of Discrepancy

Discrepancies between an agents goals and beliefs play an important, if implicit, role in determining what a rational agent is motivated to do. This is most obvious in cases where an agent achieves a complex goal incrementally and must deliberate anew as each milestone is reached. In such cases the concept of goal/belief discrepancy defines an appropriate space to which a degree-of-achievement yardstick can be applied. This paper presents soundness and completeness results concerning a logic for reasoning about goal/belief discrepancy, and it is suggested that a certain species of goal/belief discrepancy captures the concept of desire.     

Effects of Environmental Uncertainty and Social Value Orientation in Resource Dilemmas

This study investigated the relationship between environmental uncertainty and social value orientation in a replenishable resource dilemma paradigm. One hundred seventy-two undergraduates harvested units from a common resource pool over 20 trials. Two levels of social value orientation (cooperative, noncooperative) were crossed with two levels of replenishment rate uncertainty (low, high). As predicted, noncooperators harvested significantly more resources than cooperators and high uncertainty subjects harvested more resources than low uncertainty subjects. The primary finding was the hypothesized three-way interaction among social value orientation, environmental uncertainty, and trials: Social value orientation moderated harvest decisionsonlyunder conditions of high uncertainty during the middle series of harvest trials. Noncooperators increased their harvests during this period, while cooperators harvested less and held their harvests constant across these trials. These results demonstrate that systematic individual differences exist in decision makers' responses to high environmental uncertainty. We suggest that social value orientation may exert its effect by influencing the scanning and processing of goal-relevant cues in this decision environment.     

Organizational self-evaluation: An emerging frontier for organizational improvement

The authors have been working to improve clients’ institutional performance through a framework for institutional assessment and self-assessment. In this framework, performance is defined in terms of mission fulfillment, efficiency, and ongoing relevance (the extent to which the organization adapts to changing conditions in its environment). The framework implies that certain contextual forces drive performance: the internal capacities and motivation of an organization and its external environment. The article presents the framework as well as case studies of several institutions that are using the framework to assess themselves.     

Vincent Van Gogh, son of the manse: A portrait in self-psychology

Born into a dynasty of Dutch art dealers as well as the family of a Dutch Calvinist pastor, Vincent Van Gogh's turbulent and conflicted personality is the focus of a psychological interpretation beginning and ending with selections taken from the literary letters of the artist himself. The psychodynamic SelfPsychology of Heinz Kohut provides the theoretical framework for considering the tragic and redeeming aspects of this nineteenth century artistic genius and master Pre-Expressionist who painted the world as he experienced it. The reader may wish to accompany the story with a favorite collection of Van Gogh's drawings and paintings as a way of obtaining a deeper appreciation for the person known among art critics and school children alike as not only unforgettably strange and utterly fascinating, but wonderfully profound.Presbyterian minister and writer, dedicates this essay to the memory of Charles N. Davidson, M.D., 1912–1995, beloved father, faithful husband and abiding friend, a physician's physician. For an illustrated presentation about Van Gogh, given by the author in person for the benefit of counseling centers and other audiences.     

Reviews of current books

Pastoral Psychology -     

A COLLATERAL EFFECT OF REWARD PREDICTED BY MATCHING THEORY

Matching theory describes a process by which organisms distribute their behavior between two or more concurrent schedules of reinforcement (Herrnstein, 1961). In an attempt to determine the generality of matching theory to applied settings, 2 students receiving special education were provided with academic response alternatives. Using a combined simultaneous treatments design and reversal design, unequal ratio schedules of reinforcement were varied across two academic responses. Findings indicated that both subjects allocated higher rates of responses to the richer schedule of reinforcement, although only one responded exclusively to the richer schedule. The present results lend support to a postulation that positive reinforcement may have undesirable collateral effects that are predicted by matching theory (Balsam & Bondy, 1983).