When hoarding is a symptom of OCD: A case series and implications for DSM-V

Hoarding, the excessive collection and failure to discard objects of apparently little value, can represent a serious psychiatric problem and pose a threat to public health. Hoarding has traditionally been considered a symptom (or symptom dimension) of Obsessive-Compulsive Disorder (OCD), but its nosological status has recently been debated. Mounting evidence suggests that, once other primary causes are ruled out, hoarding may be a discrete diagnostic entity, recently named Hoarding Disorder. However, hoarding can sometimes be a genuine OCD symptom. This can be confusing and clinicians may sometimes struggle making the differential diagnosis. To illustrate this, we describe 10 OCD patients with severe hoarding behavior that is better conceptualized as a symptom of OCD. We focus on the motivations for hoarding and the overlapping of hoarding with other obsessive-compulsive symptom dimensions. We estimate that this clinical presentation is relatively rare and accounts for a minority of severe hoarding cases. We discuss the unique characteristics of hoarding as a symptom of OCD and the implications for DSM-V.     

On the adaptive origins and maladaptive consequences of human inbreeding: Parasite prevalence, immune functioning, and consanguineous marriage

We propose that consanguineous marriages arise adaptively in response to high parasite prevalence and function to maintain coadapted gene complexes and associated local adaptation that defend against local pathogens. Therefore, a greater prevalence of inbreeding by consanguineous marriage is expected in geographical regions that historically have had high levels of disease-causing parasites. Eventually such marriages may, under the contemporary high movement of people with modern transportation, jeopardize the immunity of those who practice inbreeding as this leads to an increased susceptibility to novel pathogens. Therefore, a greater frequency of inbreeding is expected to predict higher levels of contemporary mortality and morbidity from infectious diseases. This parasite model of human inbreeding was supported by an analysis involving 72 countries worldwide. We found that historically high levels of pathogen prevalence were related positively to the proportion of consanguineous marriages, and that a higher prevalence of such marriages was associated with higher contemporary mortality and morbidity due to pathogens. Our study addresses plausible alternative explanations. The results suggest that consanguineous marriage is an adaptive consequence of historical pathogen ecologies, but is maladaptive in contemporary disease ecologies.     

Media and Metanoia: Documentary ‘Impact’ Through the Lens of Conversion

How do contemporary understandings of religious conversion and formation shed light on the “impact” and “effectiveness” of social change media? This paper evaluates three case studies, public television documentaries produced in the mid-1990s, to reflect on their social effect. Contemporary conversion theory provides a nuanced perspective with which to interpret the nature and circumstances under which social documentary—media created specifically so as to have a social effect—may in fact be said to have an “impact.” Innumerable media theorists have discredited market models where the uncritical television viewer gets off her couch straightaway and goes out to join a social movement in the same manner as she might buy a new brand of toothpaste, and yet an expectation of being able to demonstrate (often quantifiable) “results” insistently follows documentarians and public television outreach professionals. This “high-impact” model may be seen to be analogous to a “Road to Damascus” view of instant and permanent religious conversion, likewise discounted yet tenacious. It is an illuminating exercise to consider the operations of documentary media from the perspective of developmental conversion theorists such as Rambo, Tippett, Fowler, Lovland and Stark, and others. In this light, it is possible to understand both how these documentary case studies did create certain very particular kinds of change, as well as why most social documentaries, in truth, do not.     

An evolutionary analysis of psychological pain following rape. III: Effects of force and violence

Mental pain has been hypothesized to reflect psychological adaptation designed by selection to detect and cope with the occurrence of social problems that reduced individuals inclusive fitness in human evolutionary history. According to the hypothesis, mental pain is brought about by social tragedies in the lives of individuals and focuses an individual's attention on the events surrounding the pain, promoting correction of the pain-causing events and their avoidance in the future. The hypothesis applied to rape victims argues that in human evolutionary history raped females had increased fitness as a result of mental pain, because the pain forced them to focus their attention on the fitness-reducing circumstances surrounding rape, which are discussed. Some of the hypothesis' predictions about the psychological pain of rape victims are examined using a data set of 790 rape victims who were interviewed about their psychological traumatization within five days after the assault. Earlier analyses of these data have indicated that, as predicted, both a victim's age and marital status are proximate causes of the magnitude of psychological pain following rape: Reproductive-aged women appear to have been more severely traumatized by rape than older women or girls and married women more than unmarried women. The analyses herein indicate that, as predicted, reproductive-aged women are more likely to be victims of force and/or violence during rape than are older women or young girls. When force and/or violence was controlled, reproductive-aged women were still more psychologically traumatized by rape than were either older women or young girls. The results suggest that the psychology that regulates mental pain processes information about age and mateship status in the event of a woman's rape. The analyses reported here indicate that stranger rapes are more forceful and violent than either friend or family-member rapes.     

Educating both halves of the brain: Educational breakthrough or neuromythology?

The increasing popularity of the idea that the two hemispheres of the human cerebral cortex carry on different modes of thinking has resulted in an accelerating social and commercial pressure to organize school curricula, teaching, and testing to conform to a right brain-left brain dichotomy. Evidence gathered from commissurotomy (split-brain) patients and right hemisphere studies on normal intact humans is reviewed and evaluated. Conclusions from this review are (a) the commissurotomy patients are not a suitable group on which to base generalizations about cortical functioning in the normal intact human; (b) the right-left hemisphere differences reported in many experiments on normal subjects are small and can be found only in an extremely narrow experimental context; and (c) there is no scientific basis in this work for any reorganization of curricular, teaching, or testing programs within contemporary educational practice.     

Quantifying Idiodynamics: A Process Approach to Personality Psychology

Rosenzweig's (1950) concept of idiodynamics is presented, and the importance of time in applied idiodynamics is stressed. Time-series analyses are proposed as one method for realizing the potential of idiodynamics for understanding and modeling individual lives. Building on this, and incorporating Cattell's (1966) notion of the data box, a process approach to personality research is proposed. This approach begins with idiodynamic analyses at the level of individual lives in an effort to identify patterns or themes, then proceeds to examine individual differences in the patterns or themes so identified. Examples of applying this process approach to personality questions are provided. These include identification of cycles in daily moods, assessing the link between each individual's moods and the events in his/her daily life, and the relation between repressive coping style and the experience of and memory for affect-charged life events. Conclusions emphasize how this approach can retain the appeal of the dynamic while maintaining the precision and rule-governed discourse afforded by quantification.     

Cognitive Vulnerability to Depression in Canadian and Chinese Adolescents

The goal of the current study was to compare diathesis-stress and transactional models of cognitive vulnerability to depression in samples of Canadian (n = 118) and Chinese (n = 405) adolescents. We utilized a six-month multi-wave, longitudinal design in order to examine whether (a) perceived control moderated the association between the occurrence of dependent interpersonal stressors and subsequent increases in depressive symptoms (i.e., a diathesis-stress perspective) and (b) dependent interpersonal stressors mediated the association between perceived control and subsequent increases in depressive symptoms (i.e., a transactional perspective). Results from idiographic, time-lagged, hierarchical linear modeling analyses indicated that for Canadian adolescents both diathesis-stress and transactional models were significant predictors of depressive symptomology. When examining the diathesis-stress model, boys, but not girls, who reported lower perceived control, reported higher levels of depressive symptoms following the occurrence of dependent interpersonal stress. Gender differences, however, were not present in the transactional model. In contrast, transactional, but not diathesis-stress, models were significant in Chinese adolescents, and gender differences did not emerge. Overall, these results may reflect culturally-relevant differences in the etiology of depression in Canadian and Chinese adolescents.     

The interplay of controlled and automatic processing in the expression of spontaneously inferred traits: A PDP analysis

Inferences made about actors influence subsequent processing about those actors. Three experiments conducted in the context of spontaneous trait inference (STI) making demonstrate that such influences occur can either occur via automatic processes or via controlled processes. Results from Experiment 1 demonstrated that processing goals manipulated prior to encoding actor behavior affected the extent to which STIs automatically influenced subsequent responses but did not alter the extent to which STIs influenced those responses via controlled processes. Results from Experiment 2 showed that the extent to which STIs affected subsequent responding via the action of controlled processes were more affected by a delay between exposure to an actor behavior and the response task than the extent to which STIs affected task performance via the action of automatic processes. Finally, results from Experiment 3 showed that participants' subjective experience of awareness of their trait inferences is related to estimates of the extent to which controlled processing is involved in the production of their future responses but not to estimates of the extent to which those responses are affected by automatic processing.