Blueprint for a dynamic deontic logic

Extending the idiom of dynamic logic we outline a deontic logic in which deontic operators operate on terms rather than on formulæ. In a second step we distinguish between what we call real and deontic actions.     

Prevention of depression among Icelandic adolescents

Major depression and dysthymia are frequent, debilitating, and chronic disorders, whose highest rate of initial onset is during the late adolescent years. The effectiveness of a program designed to prevent an initial episode of major depression or dysthymia among adolescents was investigated. Participants were 171 fourteen-year-old “at risk” Icelandic adolescents who were randomly assigned to a prevention program or a treatment-as-usual assessment only control group. They were identified as “at risk” by reporting the presence of depressive symptoms or a negative attributional style. The program was based on a developmental psychosocial model of enhancement of resilience to factors associated with the occurrence of mood disorders. The results indicated that the prevention program resulted in a significantly lower rate of major depression and dysthymia than did the control group. The study demonstrated that school personnel in the school setting can implement such prevention programs.     

Self-Reported Symptoms of Depression by Changes in Sleeping Patterns and Appetites for Outpatients with a Major Depressive Disorder

To determine whether self-reported symptoms of depression are differentiated by changes in sleeping patterns or appetite, the Beck Depression Inventory-II (BDI-II; Beck et al. 1996) was administered to 1,250 outpatients diagnosed with a major depressive disorder. A series of focused contrasts supported the hypothesis that the mean BDI-II total scores and the majority of the symptom ratings of the outpatients who described increases or decreases in their sleeping patterns or appetites were comparable and higher than the mean BDI-II total scores and symptom ratings of the patients who reported no changes in their sleeping patterns or appetites. However, the patients who were sleeping less described themselves as being more agitated than those who were sleeping more. Decreases and increases in sleep or appetite were both discussed as indicating comparable levels of depressive symptomatology.

Negative content of thinking in panic disorder and major depression–a self-report study

The purpose of the present study was to investigate the character and extent of negative thought content in panic disorder (PD) and the relation between thinking and bodily sensations. Content of thinking was explored in several areas, some of which are not exclusively related to anxiety. A structured diagnostic interview (SCID), a self-rating scale (SCL-90R), a sentence construction test (The Incomplete Sentences Blank (ISB)), and an inventory of childhood memories of parental rearing (the EMBU) were administered to 47 PD patients, 15 patients with major depression (MD), and 30 normal subjects. Thus, measures of implicit as well as explicit thinking, measures of thinking on present as well as past issues, and methods allowing negative as well as positive thought content to be expressed, were used. We found that PD was characterized by more negative thinking of anxiogenic, depressive, and dependent nature and less neutral or positive thinking than the normal subjects, primarily in issues related to the present. These negative thoughts were correlated with bodily symptoms. Very few significant differences were found between PD and MD, but a subgroup of PD with comorbidity of MD exceeded the other groups on measures of negative thoughts as well as bodily symptoms.     

Memory for action events in the bottlenosed dolphin

We investigated whether a bottlenosed dolphin’s ability to recall and repeat actions on command would immediately generalize to actions performed with specified objects. The dolphin was tested on her ability to repeat 18 novel behaviors performed with potentially interchangeable objects specified using an artificial gestural language. Such “action events” were correctly repeated at above chance levels, indicating that the dolphin had access to memories of those events. Performance levels were, however, lower than in previous tests. The dolphin appeared to have difficulty recalling which object an action was performed with. Previous research has demonstrated that animals can recall features of their environment and features of their actions independently of one another. The results of this study demonstrate (1) that the dolphin’s concept of repeating extends beyond simply accessing memories of movement patterns, and (2) that dolphins’ memories of past events incorporate representations of both self-performed acts and objects, locations, or gestural instructions. Received:10 October 1998 / Accepted after revision: 22 December 1998     

Unique Events: The Underdetermination of Explanation

The paper explicates unique events and investigates their epistemology. Explications of unique events as individuated, different, and emergent are philosophically uninteresting. Unique events are topics of why-questions that radically underdetermine all their potential explanations. Uniqueness that is relative to a level of scientific development is differentiated from absolute uniqueness. Science eliminates relative uniqueness by discovery of recurrence of events and properties, falsification of assumptions of why-questions, and methodological simplification e.g. by explanatory methodological reduction. Finally, an overview of contemporary philosophical disputes that hinge on issues of uniqueness emphasizes its philosophical significance.     

Social comparisons and pay evaluations: Preferences for same-sex and same-job wage comparisons

This research examined women's and men's social comparison preferences when evaluating the fairness of pay. Subjects were assigned randomly to work on a job described as masculine, feminine, or sex neutral and were told that they would be paid for their work. After working on the job and privately receiving identical payment, subjects rank ordered their preference for seeing the average male, average female, and average combined-sex wage paid in each of the three jobs. Despite the availability of the combined-sex wage, subjects preferred to maximize similarity in their wage comparisons, with the majority choosing to see the pay of a same-sex and same-job group first. Regardless of the sex linkage of their job assignment, subjects selected a same-job comparison first. Sex linkage of job did affect same-sex preferences; whereas subjects in sex-appropriate and sex-neutral jobs showed a significant preference for seeing the pay of same-sex others first, subjects in sex-inappropriate jobs did not. Results also indicated that both men and women assigned to the feminine job expected somewhat less pay and thought their obtained pay was more fair than did those assigned to the masculine job. Furthermore, women thought they deserved less pay for their work than did men, regardless of their job assignment. Implications of these results for gender differences in outcome evaluations are discussed.     

Objects, events and "to be" verbs in Spanish--an ERP study of the syntax-semantics interface

In Spanish, objects and events at subject position constrain the selection of different forms of the auxiliary verb “to be”: locative predicates about objects require “estar en”, while those relating to events require “ser en”, both translatable as “to be in”. Subjective ratings showed that while the “object + ser + en” is considered as incorrect, the “event + estar + en” combination is also perceived as unacceptable but to a lesser degree. In an ERP study, we evaluated the impact of a purely semantic distinction (object versus events) on the subsequent processing of these auxiliary verbs followed by locatives in Spanish. For the “ser en” predicate, the P600 component was larger when the subject was an object than when it was an event. This P600 effect is consistent with an online repair of the defining predicate when it does not fit with the adequate semantic properties of the subject. On the other hand, for the “estar en” predicate, event subjects when compared to object subjects showed more positive ongoing amplitudes between 280 and 380 ms after the presentation of the “en” preposition, followed by a longer positive wave starting around 400 ms and lasting until 700 ms after the presentation of the following determiner, with central and frontal scalp distributions respectively. Thus, the different subject-predicate combinations, depending on the semantic features of the subjects, triggered syntactic reparatory processes at a structural level. These findings are consistent with an incremental interpretation of sentence meaning based on the interaction between syntactic and semantic information.     

Two-year outcome of internet-based relapse prevention for partially remitted depression

The objective of the study was to investigate the long-term effects of internet-based relapse prevention for sufferers of partially remitted depression. Eighty-four individuals with partially remitted unipolar depression were randomized to either internet-based CBT (iCBT) or to a control group. After the ten week intervention period the participants were followed for 24 months and diagnostic interviews conducted to detect relapse. The intervention and monthly self-ratings of depressive symptoms were administered via an internet-based platform that ensured secure communication with all participants. Significantly fewer participants in the iCBT group had experienced a relapse compared with those in the control group two years after the internet-based intervention. The relapse rate in the iCBT group was 13.7% (CI 95% = 2.5–24.9) and in the control group it was 60.9% (CI 95% = 44.8–77). Furthermore, a significantly larger proportion of the iCBT group experienced remission two years after the intervention compared with the control group. Internet-based CBT seems promising for preventing relapse in sufferers of partially remitted depression.