Witnesses in action: the effect of physical exertion on recall and recognition

Understanding memory performance under different operational conditions is critical in many occupational settings. To examine the effect of physical exertion on memory for a witnessed event, we placed two groups of law-enforcement officers in a live, occupationally relevant scenario. One group had previously completed a high-intensity physical-assault exercise, and the other had not. Participants who completed the assault exercise showed impaired recall and recognition performance compared with the control group. Specifically, they provided significantly less accurate information concerning critical and incidental target individuals encountered during the scenario, recalled less briefing information, and provided fewer briefing updates than control participants did. Exertion was also associated with reduced accuracy in identifying the critical target from a lineup. These results support arousal-based competition accounts proposing differential allocation of resources under physiological arousal. These novel findings relating to eyewitness memory performance have important implications for victims, ordinary citizens who become witnesses, and witnesses in policing, military, and related operational contexts.     

Disturbance of Emotion Processing in Frontotemporal Dementia: A Synthesis of Cognitive and Neuroimaging Findings

Accurate processing of emotional information is a critical component of appropriate social interactions and interpersonal relationships. Disturbance of emotion processing is present in frontotemporal dementia (FTD) and is a clinical feature in two of the three subtypes: behavioural-variant FTD and semantic dementia. Emotion processing in progressive nonfluent aphasia, the third FTD subtype, is thought to be mostly preserved, although current evidence is scant. This paper reviews the literature on emotion recognition, reactivity and expression in FTD subtypes, although most studies focus on emotion recognition. The relationship between patterns of emotion processing deficits and patterns of neural atrophy are considered, by integrating evidence from recent neuroimaging studies. The review findings are discussed in the context of three contemporary theories of emotion processing: the limbic system model, the right hemisphere model and a multimodal system of emotion. Results across subtypes of FTD are most consistent with the multimodal system model, and support the presence of somewhat dissociable neural correlates for basic emotions, with strongest evidence for the emotions anger and sadness. Poor emotion processing is evident in all three subtypes, although deficits are more widespread than what would be predicted based on studies in healthy cohorts. Studies that include behavioural and imaging data are limited. Future investigations combining these approaches will help improve the understanding of the neural network underlying emotion processing. Presently, longitudinal investigations of emotion processing in FTD are lacking, and studies investigating emotion processing over time are critical to understand the clinical manifestations of disease progression in FTD.     

The impact of self-reported pubertal status and pubertal timing on disordered eating in irish adolescents

This paper considers the impact of pubertal status and pubertal timing on disordered eating in Irish adolescents. 1190 boys and 1841 girls completed the Eating Attitudes Test-26, the Eating Disorder Inventory-III and self-report measures of pubertal status and pubertal timing. Regarding pubertal status, greater maturity in girls was associated with increased overall eating concerns, higher drive for thinness and higher levels of body dissatisfaction. In boys, greater maturity was associated with lower drive for thinness and lower body dissatisfaction. Regarding pubertal timing, early-maturing girls showed the most eating concerns, the highest drive for thinness, scored highest on bulimic symptoms and were the most dissatisfied with their bodies. In contrast, late-maturing boys had more bulimic symptoms and more dissatisfaction with their bodies than on-time peers. The findings suggest that puberty itself is a risk factor for disordered eating for girls rather than boys; however, pubertal timing is a risk factor for both. Copyright ? 2012 John Wiley & Sons, Ltd and Eating Disorders Association.     

Have We Solved the Non-Identity Problem?

Our pollution of the environment seems set to lead to widespread problems in the future, including disease, scarcity of resources, and bloody conflicts. It is natural to think that we are required to stop polluting because polluting harms the future individuals who will be faced with these problems. This natural thought faces Derek Parfit’s famous Non-Identity Problem (1984, pp. 361–364). The people who live on the polluted earth would not have existed if we had not polluted. Our polluting behaviour does not make these individuals worse off. It may therefore seem that we do not harm them by polluting. Parfit argues that we should replace person-affecting principles with an impersonal principle of beneficence, Principle Q (1984, p. 360.). I argue that Principle Q cannot give an adequate account of our duties to refrain from polluting. I consider attempts to solve the Non-Identity Problem by denying that to harm someone an agent must make them worse off. I argue that such responses provide a partial solution to the Non-Identity Problem. They do show that we harm future individuals in a morally relevant sense by polluting. Nonetheless, this is only a partial solution. The Non-Identity Problem still suggests that our harm-based reasons not to pollute are less strong than we intuitively believe. Thus on its own an appeal to the claim that we harm future individuals is not able to give a fully satisfactory account of why we are required not to pollute.     

The Role of Dehumanization in Attitudes Toward the Social Exclusion and Rehabilitation of Sex Offenders

We examined the role of dehumanization in people's attitudes toward the rehabilitation of sex offenders. In Study 1, the more participants dehumanized sex offenders, the less they supported their rehabilitation and the longer the sentences they recommended. In Study 2, the more participants dehumanized sex offenders, the more likely they were to support their exclusion from society. In Study 3, the more participants dehumanized sex offenders, the more they supported their violent ill treatment. In Study 4, within a sample of correctional staff, good quality contact with sex offenders was related to less dehumanization and more support for rehabilitation. Mediation analyses indicated that the relationship between quality of contact and support for rehabilitation was mediated via dehumanization.     

A dual identity-electronic contact (DIEC) experiment promoting short- and long-term intergroup harmony

Existing intergroup harmony programs have been short in length with little long-term evaluation of their true effectiveness. This experiment addresses this limitation through the development and evaluation of a new intergroup harmony program that integrates dual identity and contact tenets. At Time 1, 116 Australian Muslim and 104 Australian Christian first-year high school students attending religiously segregated schools completed pre-test measures of intergroup bias, intergroup anxiety, prejudice, and outgroup knowledge. Eight months later, in the next year of school, these students were allocated to either the nine-week dual identity-electronic or E-contact (DIEC) program that involved Muslim and Christians interacting via a synchronous internet chat tool, or the control condition where they completed the program within their religious groups with no recategorization. All participants completed the same pre-test measures at two weeks (Time 2) and 6-months (Time 3) post-program. At Time 2, for students in the DIEC condition, intergroup bias and intergroup anxiety decreased significantly, and outgroup knowledge increased significantly, compared to the control condition. In the case of intergroup bias, the decrease was maintained at Time 3. Moderation effects of ingroup identification and outgroup friendship, and mediation effects of intergroup anxiety were also found. These encouraging findings highlight that carefully designed E-contact programs can successfully promote intergroup harmony in both the short- and long-term.     

Downward causation without foundations

Emergence is interpreted in a non-dualist framework of thought. No metaphysical distinction between the higher and basic levels of organization is supposed, but only a duality of modes of access. Moreover, these modes of access are not construed as mere ways of revealing intrinsic patterns of organization: They are supposed to be constitutive of them, in Kant’s sense. The emergent levels of organization, and the inter-level causations as well, are therefore neither illusory nor ontologically real: They are objective in the sense of transcendental epistemology. This neo-Kantian approach defuses several paradoxes associated with the concept of downward causation, and enables one to make good sense of it independently of any prejudice about the existence (or inexistence) of a hierarchy of levels of being.     

Therapist effects and the dissemination of cognitive behavior therapy for chronic fatigue syndrome in community-based mental health care

ObjectiveThe purpose of the present study was to explore the role of the therapist in the dissemination of manualized cognitive behavior therapy (CBT) for chronic fatigue syndrome (CFS) outside specialized treatment settings.MethodWe used the routinely collected outcome data of three community-based mental health care centers (MHCs) which implemented and sustained CBT for CFS during the course of the study. Ten therapists, who all received the same training in CBT for CFS, and 103 patients with CFS were included.ResultsRandom effects modeling revealed a significant difference in mean post-treatment fatigue between therapists. The effect of the therapist accounted for 21% of the total variance in post-treatment fatigue in our sample. This effect could be explained by the therapists’ attitude toward working with evidence-based treatment manuals as well as by the MHC where CBT for CFS was delivered.ConclusionThe context in which CBT for CFS is delivered may play an important role in the accomplishment of established therapy effects outside specialized treatment settings. Due to the small sample size of MHCs and the different implementation scenarios in which they were engaged, our findings should be interpreted as preliminary results which are in need for replication.     

French Children’s Awareness of Gender Stereotypes About Mathematics and Reading: When Girls Improve Their Reputation in Math

Since 2000, surveys on academic achievement show gender inequalities in favor of girls in the school setting. The aim of the present study was to examine if gender stereotypes about academic abilities that are usually considered as fully demonstrated in the literature have to be updated. Three hundred ninety-eight French fifth graders from a medium-sized provincial town answered a questionnaire designed to examine, both with direct and indirect measures, if they hold different gender stereotypes concerning mathematics and reading depending on target’s age (children vs. adults). As expected, results showed that participants, regardless of their gender, were aware of a math-ability stereotype favorable to men when the stereotyped targets were adults. When the stereotyped targets were children and young adolescents, the math-ability stereotype was less clear. Participants believed that people think that girls succeed as well as boys in math. Concerning reading-ability, participants reported the “usual” stereotype favorable to females, regardless of the stereotyped target’s age (child or adult). Together these results suggest that academic gender stereotypes have to be reconsidered. The math-ability stereotype targeting children and favorable to both genders seems to show an improvement of the French girls’ reputation in mathematics. Moreover, the reputation of French boys in this domain seems to be poorer than reported in previous research.     

Associations of social relationships with consultation for symptoms of depression: a community study of depression in older men and women in Québec

To assess associations between social relationships and consultation for symptoms of depression, data from a representative sample of 2,811 French-speaking community-dwelling older adults in Québec were used. Less than half of the older adults meeting DSM criteria for depression (N = 379; 47.1%) had sought consultation about their depression-relevant symptoms in the preceding 12 months. Having a cohabitant partner or having children were not associated with frequency of consultation for women. Men without a partner tended to consult more frequently than men with a cohabiting partner (OR = 2.5; 95% CI = 0.81, 7.88). None of the men without a confidant had consulted. Among the 67 men with a confidant, consultation was more frequent among those not cohabiting with a partner (70%) than among those with a cohabiting partner (46%). The influence of social relationships on consultation for depression differed in men and women in this population of depressed elderly people in Québec.