Age-of-Onset or Behavioral Sub-Types? A Prospective Comparison of Two Approaches to Characterizing the Heterogeneity within Antisocial Behavior

There are two common approaches to sub-typing the well-documented heterogeneity within antisocial behavior: age-of-onset (i.e., childhood-onset versus adolescence-onset; see Moffitt 1993) and behavioral (i.e., physical aggression versus non-aggressive rule-breaking). These approaches appear to be associated, such that aggression is more characteristic of childhood-onset antisocial behavior whereas rule-breaking is linked to both child- and adolescence-onset antisocial behavior. However, it remains unclear which approach, if either, better explains the heterogeneity within antisocial behavior. We examined this question in a prospective sample of male twins, assessed at the ages of 11, 14, 17, and 24 years. Although the age-of-onset subtypes predicted adult antisocial behavior in the expected direction when analyzed alone, this association dissipated once we controlled for aggression and rule-breaking. Such findings suggest that the behavioral sub-types of antisocial behavior may be a stronger predictor of later antisocial outcomes than is its age-of-onset.     

The structure of working memory abilities across the adult life span

The present study addresses three questions regarding age differences in working memory: (1) whether performance on complex span tasks decreases as a function of age at a faster rate than performance on simple span tasks; (2) whether spatial working memory decreases at a faster rate than verbal working memory; and (3) whether the structure of working memory abilities is different for different age groups. Adults, ages 20-89 (n = 388), performed three simple and three complex verbal span tasks and three simple and three complex spatial memory tasks. Performance on the spatial tasks decreased at faster rates as a function of age than performance on the verbal tasks, but within each domain, performance on complex and simple span tasks decreased at the same rates. Confirmatory factor analyses revealed that domain-differentiated models yielded better fits than models involving domain-general constructs, providing further evidence of the need to distinguish verbal and spatial working memory abilities. Regardless of which domain-differentiated model was examined, and despite the faster rates of decrease in the spatial domain, age group comparisons revealed that the factor structure of working memory abilities was highly similar in younger and older adults and showed no evidence of age-related dedifferentiation.     

Influence of caregiver burden on the association between daily fluctuations in pleasant activities and mood: A daily diary analysis

Much research has focused on behavioral activation and its effect on depression, but less is known about the effects of leisure activities on the two distinct affective domains of depression: positive affect (PA) and negative affect (NA). Furthermore, individual factors (i.e., stress level) may moderate the impact of behavioral activation on affect. The present study utilized a daily diary approach to examine the moderating effect of stress on the relationship between leisure satisfaction and both PA and NA. Twenty-five dementia caregivers completed activity and affect measures four times daily for 14 days. Results were analyzed using multilevel modeling, an approach that considers intra-individual differences in activity and affect over time. Results supported the hypothesis that caregivers with higher burden display a stronger association between leisure satisfaction and affect than caregivers with lower burden. Specifically, caregivers with higher burden had a stronger positive relationship between leisure satisfaction and PA and a stronger negative relationship between leisure satisfaction and NA. These findings suggest that screening caregivers for level of burden may help identify those most likely to benefit from behavioral interventions.     

The Online Theology Classroom: Strategies for Engaging a Community of Distance Learners in a Hybrid Model of Online Education

One factor contributing to success in online education is the creation of a safe and vibrant virtual community and sustained, lively engagement with that community of learners. In order to create and engage such a community instructors must pay special attention to the relationship between technology and pedagogy, specifically in terms of issues such as course design, social presence, specially tailored assignments, learner expectations, and objectives, and facilitation of sustained engagement with the course material, fellow learners, and the instructor. Several strategies for accomplishing this goal are presented here based on the author's experiences teaching second‐career students in hybrid introductory theology courses at a mainline denominational seminary.     

Semantic clustering as a neuropsychological predictor for amnestic-MCI

Recent research has demonstrated that patients with Alzheimer's disease (AD) show deficits in semantic processing when compared to cognitively healthy individuals. This difference is thought to be attributed to losses in higher cortical systems that are predominantly associated with executive functioning. The first aim of the study will be to determine if differences in semantic clustering can accurately differentiate patients with amnestic mild cognitive impairment (aMCI) from cognitively normal (CN) individuals. The second aim will be to determine the extent to which semantic processing might be associated with executive functions. Data from 202 (134 CN, 68 aMCI) participants were analyzed to quantify differences in semantic clustering ratios on the HVLT-R. Study participants ages ranged from 51 to 87 with education ranging from 6 to 20 years. ANCOVA revealed statistically significant differences on semantic clustering ratios (p < .001). Moderate correlations between semantic clustering Category Fluency Test (r = .45) were also found. Statistically significant group differences were also present on Trails-B and WAIS-R Digit Symbol performance (p < .001). Overall, these data indicate that deficits in semantic clustering are present in aMCI patients.     

Is Spousal Similarity for Personality A Matter of Convergence or Selection?

We investigated whether spousal similarity for personality traits results from convergence (i.e., couples becoming more similar to one another over time) or selection (i.e., individuals selecting partners with similar traits) in a sample of 1,296 married couples. Personality was assessed using the Multidimensional Personality Questionnaire. We evaluated whether similarity increased with increasing length of marriage. Evidence of spousal convergence was inconsistent across analyses, arguing against this mechanism as a compelling explanation for spousal similarity. Accordingly, selection processes may better explain spousal similarity in these data. The one exception might be for aggressive aspects of personality.     

Geographic profiling: the fast,frugal, and accurate way

The current article addresses the ongoing debate about whether individuals can perform as well as actuarial techniques when confronted with real world, consequential decisions. A single experiment tested the ability of participants (N = 215) and an actuarial technique to accurately predict the residential locations of serial offenders based on information about where their crimes were committed. Results indicated that participants introduced to a ‘Circle’ or ‘Decay’ heuristic showed a significant improvement in the accuracy of predictions, and that their post‐training performance did not differ significantly from the predictions of one leading actuarial technique. Further analysis of individual performances indicated that approximately 50% of participants used appropriate heuristics that typically led to accurate predictions even before they received training, while nearly 75% improved their predictive accuracy once introduced to either of the two heuristics. Several possible explanations for participants' accurate performances are discussed and the practical implications for police investigations are highlighted. Copyright © 2004 John Wiley & Sons, Ltd.     

Dysregulated Motherhood: Exploring the Risk Features in a Mother’s Caregiving Representations

In the case of a mother with dysregulating attachment experiences and current enrolment in a parent-infant psychotherapy process, we explored which insecure, hostile/helpless, and prementalizing risk features were similar in her attachment and caregiving representations; which risk features were specific to her caregiving representations; and how these theory-defined features overlapped in detecting caregiving risks. Risk features in the attachment representations were assessed from the adult attachment interview and risk features in the caregiving representations from written psychotherapy notes. We found similar insecure (preoccupied and disorganized), prementalizing and hostile/helpless instances from both the attachment and the caregiving representations. However, confusion between self and child, greater variance in lapses into prementalizing, and specific and concrete fears and helplessness were unique to the caregiving representations. Hostile/helpless instances were found in tandem with almost all insecure and prementalizing instances, indicating this conceptualization captured risks in the caregiving representations most comprehensively. Fearful and helpless caregiving representations occurred somewhat independently from other risk conceptualizations, suggesting they need to be identified as independent phenomena. The results imply that detecting specific manifestations of intergenerational risks from caregiving representations is possible.     

Physician Aid-in-Dying and Suicide Prevention in Psychiatry: A Moral Crisis?

Involuntary psychiatric commitment for suicide prevention and physician aid-in-dying (PAD) in terminal illness combine to create a moral dilemma. If PAD in terminal illness is permissible, it should also be permissible for some who suffer from nonterminal psychiatric illness: suffering provides much of the justification for PAD, and the suffering in mental illness can be as severe as in physical illness. But involuntary psychiatric commitment to prevent suicide suggests that the suffering of persons with mental illness does not justify ending their own lives, ruling out PAD. Since both practices have compelling underlying justifications, the most reasonable accommodation might seem to be to allow PAD for persons with mental illness whose suffering is severe enough to justify self-killing, but prohibit PAD for persons whose suffering is less severe. This compromise, however, would require the articulation of standards by which persons’ mental as well as physical suffering could be evaluated. Doing so would present a serious philosophical challenge.     

What is Christian about Christian bioethics?

What is Christian about Christian bioethics? The short answer to this question is that the Incarnation should shape the form and content of Christian bioethics. In explicating this answer it is argued that contemporary medicine is unwittingly embracing and implementing the transhumanist dream of transforming humans into posthumans. Contemporary medicine does not admit that there are any limits in principle to the extent to which it should intervene to improve the quality of human life. This largely inarticulate, yet ambitious, agenda is derived first in late modernity's failed, but nonetheless ongoing, attempt to transform necessity into goodness, and second the loss of any viable concept of eternity, thereby stripping temporal existence of any normative significance. In short, medicine has become the vanguard of a profane attempt to save humankind by extracting data from flesh. In response, it is contended that an alternative Christian bioethics must be shaped by the Incarnation, the Word made flesh. This assertion does not entitle Christians to oppose the posthuman trajectory of contemporary medicine on the basis of any natural or biological essentialism. Rather, it is an evangelical witness to the grace of Christ's redemption instead of the work of self-transformation. It is Christ alone who thereby makes the vulnerability and mortality of finitude a gift and blessing. Specifically, it is maintained that the chasm separating necessity and goodness cannot be filled but only bridged through the suffering entailed in Christ's cross, and through Christ's resurrection eternity becomes the standard against which the temporal lives of human creatures are properly formed and measured. Consequently, Christian bioethics should help us become conformed to Christ rather than enabling self-transformation.