Individual differences in spatial configuration learning predict the occurrence of intrusive memories

The dual-representation model of posttraumatic stress disorder (PTSD; Brewin, Gregory, Lipton, & Burgess, Psychological Review, 117, 210-232 2010) argues that intrusions occur when people fail to construct context-based representations during adverse experiences. The present study tested a specific prediction flowing from this model. In particular, we investigated whether the efficiency of temporal-lobe-based spatial configuration learning would account for individual differences in intrusive experiences and physiological reactivity in the laboratory. Participants (N = 82) completed the contextual cuing paradigm, which assesses spatial configuration learning that is believed to depend on associative encoding in the parahippocampus. They were then shown a trauma film. Afterward, startle responses were quantified during presentation of trauma reminder pictures versus unrelated neutral and emotional pictures. PTSD symptoms were recorded in the week following participation. Better configuration learning performance was associated with fewer perceptual intrusions, r = ?.33, p < .01, but was unrelated to physiological responses to trauma reminder images (ps > .46) and had no direct effect on intrusion-related distress and overall PTSD symptoms, rs > ?.12, ps > .29. However, configuration learning performance tended to be associated with reduced physiological responses to unrelated negative images, r = ?.20, p = .07. Thus, while spatial configuration learning appears to be unrelated to affective responding to trauma reminders, our overall findings support the idea that the context-based memory system helps to reduce intrusions.     

Eyewitness Evidence Obtained with the Self‐Administered Interview© Is Unaffected by Stress

The Self‐Administered Interview© (SAI) serves to elicit eyewitness statements directly after the crime. Witnesses could still experience stress then. Because stress during retrieval produces memory‐impairing effects, this study sought to compare the SAI with free recall under stress. An interaction between stress and interview was expected such that the SAI would elicit more comprehensive accounts than free recall in the control, but not in the stress group. One hundred and twenty‐seven participants underwent a stress or control task. They witnessed a live staged crime and completed an SAI or a free recall. The SAI elicited a higher number of correct verifiable event details and a higher number of correct and incorrect perpetrator details than free recall. Accuracy rates were unaffected. Unexpectedly, despite causing moderate stress‐induced cortisol elevations, stress exposure did not influence memory performance and did not interact with interview type. Hence, the SAI can safely be used, when witnesses are moderately stressed.Copyright © 2015 John Wiley & Sons, Ltd.     

A prelinguistic gestural universal of human communication

Several cognitive accounts of human communication argue for a language-independent, prelinguistic basis of human communication and language. The current study provides evidence for the universality of a prelinguistic gestural basis for human communication. We used a standardized, semi-natural elicitation procedure in seven very different cultures around the world to test for the existence of preverbal pointing in infants and their caregivers. Results were that by 10-14 months of age, infants and their caregivers pointed in all cultures in the same basic situation with similar frequencies and the same proto-typical morphology of the extended index finger. Infants' pointing was best predicted by age and caregiver pointing, but not by cultural group. Further analyses revealed a strong relation between the temporal unfolding of caregivers' and infants' pointing events, uncovering a structure of early prelinguistic gestural conversation. Findings support the existence of a gestural, language-independent universal of human communication that forms a culturally shared, prelinguistic basis for diversified linguistic communication.     

Depletion Influences Restraint,But Does It Influence Conflict Identification? Expanding on Osgood and Muraven (2015)

In their 2015 article, Osgood and Muraven showed that cognitive depletion reduces prosocial behaviors but not prosocial attitudes. We expand on the authors’ interpretation by relating their results to recent theorizing on the relationship between prosocial behavior and self-control. This framework distinguishes between the proclivity to identify self-control conflict and the capacity to exercise restraint. Osgood and Muraven's findings can be interpreted as evidence that cognitive depletion in social contexts fails to influence a necessary condition for identifying self-control conflict. However, the results do not yet allow us to conclude that depletion influences capacity to exercise restraint. Further work is needed to understand the mechanisms by which cognitive depletion influences prosocial behavior.     

Prevalence of Genetic Testing in CHARGE Syndrome

Parents of 145 individuals with a clinical diagnosis of CHARGE syndrome, ages 2 to 39 years, indicated in a survey whether their child had been tested for the CHD7 mutation, which is the only gene presently known to be associated with CHARGE. More than two thirds (68%) of the affected individuals had never been gene tested. Of the 46 who had been tested, 74% tested positive for the mutation. Half (50%) of those who underwent testing did so as a part of a conference blood draw by Baylor College of Medicine in 1999. Children who were tested were significantly younger than those who had not been tested. A second group of 43 parents were informally surveyed at a conference in 2009. More than half of their children had been tested, and nearly 70% were positive for the mutation. Reasons given by these parents for testing included confirming the diagnosis and assisting research. Reasons given for not testing included lack of opportunity, no known benefit, and lack of insurance coverage.     

The effectiveness of university counselling for improving academic outcomes and well-being

The work discusses the effectiveness of the counselling treatment to enhance student academic success. The participants were randomly assigned to either an experimental group (66 students who had completed counselling treatment) or a wait-list comparison group (44 students). The Adult Self Report (ASR) by Achenbach and Rescorla [2003. Manual for the ASEBA adult forms & profiles. Burlington, VT: Research Center for Children, Youth, & Families, University of Vermont] and the Outcome Questionnaire 45 (OQ-45) by Lambert and Hill [1994. Assessing psychotherapy outcomes and processes. In A. E. Bergin & S. L. Garfield (Eds.), Handbook of psychotherapy and behavior change (pp. 72–113). New York: John Wiley] were applied before and after the counselling sessions. Data show statistically significant decrease in the ASR clinical scales for both internalising and externalising problems after counselling as well as in the OQ-45 scores for distress symptoms and relationship difficulties. Compared with the control group, the students who received counselling exhibited a significant recovery regarding their progress with their studies.     

CSF 5-HIAA Predicts Suicide Risk After Attempted Suicide

Suicide risk after attempted suicide, as predicted by cerebrospinal fluid (CSF) monoamine metabolite concentrations, was studied in a sample of 92 psychiatric mood disorder inpatients admitted shortly after attempting suicide. The potential of the serotonin metabolite 5-hydroxyindoleacetic acid (5-HIAA) in the CSF to predict suicide risk within the first year after attempted suicide was studied by means of survival analysis after median split sub-grouping. Eleven patients (12%) committed suicide within 1 year after attempted suicide. Eight of these belonged to the below-the-median (< 87 nM) CSF 5-HIAA subgroup, that is, the suicide risk was 17% as compared with 7% among those with above-the-median CSF 5-HIAA. The cumulative number of survived patient-months during the first year after attempted suicide was significantly lower in the low CSF 5-HIAA subgroup. It was concluded that low CSF 5-HIAA predicts short-range suicide risk after attempted suicide in mood disorder psychiatric inpatients. These findings lend further support to the serotonin hypothesis of suicide risk.     

Research note: A motivational perspective on change processes and outcomes

A reengineering process in a chemical plant with technostructural and human-process-oriented interventions was analysed in order to develop and test a generalized expectancy?–?valence-theory model for participation in the change process and effective change. It was assumed that both supervisory support and favourable colleagues' change attitudes enhance one's change motivation, and participation in the change process, by increasing participation opportunities, and positive attitudes toward change. In turn, employee participation should have a positive impact on outcomes of the change process. After 2 years of restructuring, 104 employees participated in the evaluation of the change process. Path analyses revealed results that supported our model by and large. Employee participation in the change process predicts positive organizational effects. Favourable change attitudes as well as perceived participation opportunities, and supervisory support, which were integrated into one scale, predict the degree of employee participation. The latter also showed a direct path to organizational effects.