Reasons and Rational Motivational Access

Practical Internalism holds that an agent's reasons for acting are entirely determined by his rational desires. This account is thought to be preferable to externalism, on the grounds that internalism alone can guarantee that agents have 'rational motivational access' (RMA) to their reasons. Rachel Cohon has recently argued that (i) internalism fails to ensure this, and (ii) an externalist account, akin to relativism, can guarantee RMA. I suggest that both of these claims are mistaken. I argue that relativism is best understood as an internalist theory, and claim that one version of internalism can therefore guarantee RMA.     

Systemic Practice

In this paper we propose to develop a methodology, based on a set of isomorphic patterns of practice, for studying the operational competencies of systemic therapists. By attending to the therapists' actions at the level of practice, we have identified unifying principles that run across the different models of systemic family therapy. This is a pattern of action that we call "systemic practice." In order to show the application of this methodology in the art of practice, we have analyzed excerpts from two videotaped sessions.     

Features of Families with Major Affective Disorders

This article reports the authors' observations on 22 families in which a young adult member has been diagnosed as manic-depressive, and on 11 families in which a member has been diagnosed as suffering from major schizoaffective disorder. All families could be described as extremely rigid and bound-up systems. Many of them were characterized by a "restrictive parental complementarity" and reciprocal delegation, and they shared certain cognitive features and assumptions. "Manic-depressive" families showed similarities as well as differences when compared with families in which there were schizophrenic and serious psychosomatic disorders.     

Hierarchical semantics for relevant logics

This paper was presented to the 1990 meeting of the Australasian Association for Logic held at the University of Sydney, and I thank those present for helpful comments made.     

Comorbidity of anxiety and depression in children and adolescents.

Anxiety and depression in children and adolescents are reviewed, including differential diagnosis, assessment of symptoms, family history data, developmental features, and clinical correlates. Findings indicate that 15.9% to 61.9% of children identified as anxious or depressed have comorbid anxiety and depressive disorders and that measures of anxiety and depression are highly correlated. Family history data are inconclusive. Differences emerged among children with anxiety, depression, or both disorders. Anxious children were distinguishable from the other 2 groups in that they showed less depressive symptomatology and tended to be younger. The concurrently depressed and anxious group tended to be older and more symptomatic. In this group, the anxiety symptoms tended to predate the depressive symptoms. Findings are discussed in the context of a proposed developmental sequence.     

Motivational effects of smoked marijuana: behavioral contingencies and low-probability activities.

Six adult male research volunteers, in two groups of 3 subjects each, lived in a residential laboratory for 15 days. All contact with the experimenters was through a networked computer system, and subjects' behavior was monitored continuously and recorded. During the first part of each day, they were allowed to socialize. Two cigarettes containing active marijuana (2.7% delta 9-THC) or placebo were smoked during the private work period and the period of access to social activities. Three-day contingency conditions requiring subjects to engage in a low-probability work activity (instrumental activity) in order to earn time that could be spent engaging in a high-probability work activity (contingent activity) were programmed during periods of placebo and active-marijuana smoking. During placebo administration, the contingency requirement reliably increased the amount of time that subjects spent engaged in the low-probability instrumental activity and decreased the time spent engaged in the high-probability activity. During active-marijuana administration, however, the increases in instrumental activity were consistently larger than observed under placebo conditions. The decreases in contingent activity were similar to those seen under placebo conditions. Smoking active marijuana was thus observed to produce increments in instrumental activity under motivational conditions involving contingencies for "work activities."