The adrenergic receptor α-2A gene (ADRA2A) and neuropsychological executive functions as putative endophenotypes for childhood ADHD

There is resurgent interest in the psychiatric literature in endophenotypes, variables thought to more strongly reflect the effects of candidate genes than do manifest disorders. In a sample of 176 children with attention deficit hyperactivity disorder (ADHD) and 52 of their siblings, we examined the validity of several putative endophenotypes for ADHD that represent commonly used clinical measures of multiple cognitive/neuropsychological domains of executive functions (EFs). We review their distributional normality, their relations to ADHD symptoms in probands and unaffected siblings relative to nonADHD controls, and their correlation in siblings. We also tested the EF measures’ associations with the ADRA2A gene and whether they mediated or moderated the associations between ADHD and ADRA2A. Several EF measures showed association with ADRA2A, as well as moderation, but not mediation, of its association with ADHD. Implications of the results for evaluating the validity and utility of putative endophenotype measures and for finding candidate gene effects on ADHD are discussed.     

Predictors of Morale in U.S. Peacekeepers1

In this prospective study, we examined pre‐ and postmission predictors of morale in U.S. military peacekeepers deployed to Kosovo. After controlling for demographic and military characteristics, current general life stressors, unit cohesion, and reports of patriotism and nationalism were predictive of predeployment morale. We also found that positive military experiences, general overseas military stressors, and postdeployment unit cohesion were significant predictors of postdeployment morale after controlling for demographic and military characteristics and predeployment morale, cohesion, and patriotism/nationalism. The results suggest the need to broaden our understanding of the factors that may assist and motivate soldiers during demanding peacekeeping operations and the factors that may mitigate the impact of stressful demands and associated mission‐related strain.     

Beliefs About Gender Discrimination in the Workplace in the Context of Affirmative Action: Effects of Gender and Ambivalent Attitudes in an Australian Sample

This study investigated beliefs about gender discrimination in opportunities for promotion in organisations and their relation to gender and gender-focused ambivalent beliefs as measured, respectively, by the Ambivalent Sexism Inventory (ASI) and the Ambivalence toward Men Inventory (AMI) (Glick and Fiske, Ambivalent sexism. In M.P. Zanna (Ed.), Advances in experimental social psychology, 33: pp. 115-188, San Diego, CA: Academic, 2001a). These two inventories were administered to 225 students at Flinders University in Adelaide, Australia along with discrimination items concerning advantage, responsibility, guilt, and resentment about the advancement of men and women in the workplace. Results showed gender differences in discrimination beliefs and in the hostile and benevolent scales from the ASI and AMI. Gender differences and relations between these scales and the discrimination variables were interpreted in terms of system-justification, self and group interests, and the effects of values and beliefs about deservingness and entitlement. This study was supported by a grant from the Australian Research Council.     

Moral Relativism

Moral relativism comes in many varieties. One is a moral doctrine, according to which we ought to respect other cultures, and allow them to solve moral problems as they see fit. I will say nothing about this kind of moral relativism in the present context. Another kind of moral relativism is semantic moral relativism, according to which, when we pass moral judgements, we make an implicit reference to some system of morality (our own). According to this kind of moral relativism, when I say that a certain action is right, my statement is elliptic. What I am really saying is that, according to the system of morality in my culture, this action is right. I will reject this kind of relativism. According to yet another kind of moral relativism, which we may call epistemic, it is possible that, when one person (belonging to one culture) makes a certain moral judgement, such as that this action is right, and another person (belong to another culture) makes the judgement that the very same action is wrong, they may have just as good reasons for their respective judgements; it is even possible that, were they fully informed about all the facts, equally imaginative, and so forth, they would still hold on to their respective (conflicting) judgements. They are each fully justified in their belief in conflicting judgements. I will comment on this form of moral relativism in passing. Finally, however, there is a kind of moral relativism we could call ontological, according to which, when two persons pass conflicting moral verdicts on a certain action, they may both be right. The explanation is that they make their judgements from the perspective of different, socially constructed, moral universes. So while it is true in the first person's moral universe that a certain action is right, it is true in the second person's moral universe that the very same action is wrong. I explain and defend this version of ontological moral relativism.     

Dual-process theory and signal-detection theory of recognition memory

Two influential models of recognition memory, the unequal-variance signal-detection model and a dual-process threshold/detection model, accurately describe the receiver operating characteristic, but only the latter model can provide estimates of recollection and familiarity. Such estimates often accord with those provided by the remember-know procedure, and both methods are now widely used in the neuroscience literature to identify the brain correlates of recollection and familiarity. However, in recent years, a substantial literature has accumulated directly contrasting the signal-detection model against the threshold/detection model, and that literature is almost unanimous in its endorsement of signal-detection theory. A dual-process version of signal-detection theory implies that individual recognition decisions are not process pure, and it suggests new ways to investigate the brain correlates of recognition memory.     

Predicting having a best friend in young children: individual characteristics and friendship features

In this study, the authors investigated the characteristics that predict best friend status in young children. One hundred and twenty-four preschool, kindergarten, and first-grade children identified their "best friend" and up to four "other friends" in their class. Teachers completed a questionnaire about each friendship to determine positive and negative features of the relationships. First, the authors used individual characteristics to predict if a child had a best friend. The variables age, gender, and peer acceptance predicted that a child would have a best friend. Second, positive friendship features positively predicted best friendships in analyses of all friendship pairs. Best friendships are meaningful relationships to children even at this young age and offer children more positive experiences than do other friendships.     

A Public Religion and Biomedical Ethics

This article describes the exclusion of public expressions of religion from the history of bioethics during recent decades. It offers a proposal to include public religion for the purpose of gaining donations of vital organs for transplantation, more appreciation for the gift of aging, and more concern for universal access to health care. I also include a brief discussion of theological support and practical suggestions for such a program.     

Differences between fathers and mothers in the treatment of, and relationship with, their teenage children: perceptions of Chinese adolescents

Chinese adolescents' perceptions of differences between mothers and fathers in parenting styles, parent-adolescent communication (frequency and related feelings), and quality of the parent-adolescent relationship were assessed via questionnaires and individual interviews. Fathers, as compared with mothers, were perceived to be less responsive, less demanding, to demonstrate less concern, but to be more harsh, and paternal parenting was less liked. There was less communication with fathers, and adolescents reported more negative feelings when communicating with fathers than with mothers. They evaluated the father-adolescent relationship more negatively than they did the mother-adolescent relationship. Adolescent females, as compared with males, perceived their parents to be more demanding but less harsh. Parenting characteristics were rated less favorably across time.     

Self-appraised social problem solving abilities, emotional reactions and actual problem solving performance

Self-report measures of social problem solving abilities have yet to be associated with objective problem solving performance in any consistent manner. In the present study, we investigated the relation of social problem solving abilities--as measured by the Social Problem Solving Skills Inventory--Revised (SPSI-R [Maydeu-Olivares, A. & D'Zurilla, T. J. (1996). A factor analytic study of the Social Problem Solving Inventory: an integration of theory and data. Cognitive Therapy and Research, 20, 115-133])--to performance on a structured problem solving task. Unlike previous studies, we examined the relation of problem solving skills to performance curves observed in repeated trials, while controlling for affective reactions to each trial. Using hierarchical modeling techniques, a negative problem orientation was significantly predictive of performance and this effect was not mediated by negative affectivity. Results are discussed as they pertain to contemporary models of social problem solving.