Theoretical Medicine and Bioethics Index to Volume 20

Volume Contents

heoretical Medicine and Bioethics Index to Volume 20     

Terrorism Outside the Proverbial Vacuum: Implications for the Moral Context

Prior research has found that terrorists are not susceptible to certain and severe countermeasures. One possibility is that, instead, deterrence is relative. Based on this premise and inspired by situational action theory’s conceptualization of the “moral context,” this research proposes that there are circumstances that influence both moral norms and their enforcement. We hypothesize that one set of circumstances is that of high profile terrorist attacks, which in turn should decrease the hazard of future incidents. We find mixed support for our hypotheses, but maintain that it has important implications for policy.     

Microstructural integrity of white matter moderates an association between childhood adversity and adult trait anger

Amongst a number of negative life sequelae associated with childhood adversity is the later expression of a higher dispositional tendency to experience anger and frustration to a wide range of situations (i.e., trait anger). We recently reported that an association between childhood adversity and trait anger is moderated by individual differences in both threat-related amygdala activity and executive control-related dorsolateral prefrontal cortex (dlPFC) activity, wherein individuals with relatively low amygdala and high dlPFC activity do not express higher trait anger even when having experienced childhood adversity. Here, we examine possible structural correlates of this functional dynamic using diffusion magnetic resonance imaging data from 647 young adult men and women volunteers. Specifically, we tested whether the degree of white matter microstructural integrity as indexed by fractional anisotropy modulated the association between childhood adversity and trait anger. Our analyses revealed that higher microstructural integrity of multiple pathways was associated with an attenuated link between childhood adversity and adult trait anger. Amongst these pathways was the uncinate fasciculus (UF; ΔR ² = 0.01), which not only provides a major anatomical link between the amygdala and prefrontal cortex but also is associated with individual differences in regulating negative emotion through top-down cognitive reappraisal. These findings suggest that higher microstructural integrity of distributed white matter pathways including but not limited to the UF may represent an anatomical foundation serving to buffer against the expression of childhood adversity as later trait anger, which is itself associated with multiple negative health outcomes.     

The origin of factor scores: Spearman,Thomson and Bartlett

The indeterminacy of factor scores has been a perennial source of debate since the time of Spearman. The main purpose of this paper is to show that, in spite of his inadequate tools and concepts, Sir Godfrey Thomson's approach of 70 years ago was on the right lines. His thinking was constrained by the primitive state of his statistical understanding but it is illuminated by his substantial exchange of the correspondence with M. S. Bartlett in the 1930s, most of which has survived in the Godfrey Thomson archive at the University of Edinburgh. In order to justify our claim and clarify the issues, we have found it necessary to fill in some of the gaps in the original derivations of Spearman, Thomson and Bartlett and to express their work in terms which are intelligible today. The opportunity is taken to relate this earlier work to contemporary debates.     

Social-Emotional Adjustment and Patterns of Alcohol Use among Young Adults

ABSTRACT Individual differences in social-emotional adjustment, jointly defined by levels of distress and self-restraint, were used to evaluate (a) patterns of alcohol use, (b) reasons for use, and (c) associated problems in two college samples of young adults (N= 287 and N= 215). As hypothesized, low self-restraint was associated with high levels of alcohol use, drinking to increase positive affect, and high levels of alcohol-related problems. Subjective distress was not related to levels of use; however, it was associated with drinking to escape negative moods and social discomfort and with excessive alcohol-related problems. Both high distress and low self-restraint predicted problem drinking beyond what could be accounted for by quantity or frequency of alcohol use or by peers' use. Within Weinberger and Schwartz's (1990) six-group typology, reactive individuals (high distress–low restraint) were especially likely to be problem drinkers, even when compared to groups with equivalent alcohol use. In a separate study, knowledgeable peers' reports validated the differences between reactive and repressive individuals, the two groups most likely to have inaccurate self-reports.     

Facebook rituals: Identifying rituals of social networking sites using structural ritualization theory

This article applies structural ritualization theory (SRT) to identify different rituals and determine their importance in the daily lives of social networking sites (SNS) users, especially Facebook users. A mixed‐methods approach of in‐depth interviews and netnography viewed through the lens of SRT allowed us to identify and analyze the types of rituals users engaged in, and how these rituals impacted users and evolved over time. During customer journeys on the SNS of Facebook, users shared daily ritual practices in distinct behavioral stages. Production and consumption of these daily rituals are important to marketers in SNS platform design for building and maintaining connectivity between users and the SNS platform.