Pre-training to find a hidden platform in the Morris water maze can compensate for a deficit to find a cued platform in a rat model of Parkinson's disease

The bilateral intranigral infusion of 1 micromol 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) in adult male Wistar rats caused a specific and partial loss of substantia nigra pars compacta (SNc) dopamine neurons, a partial depletion of striatal dopamine, and a deficit to learn the intra-maze cued version of the Morris water maze. Pre-training the SNc rats in the spatial version of the water maze or simply maintaining the animals on the water maze platform reversed this deficit. This improvement was even observed when the order of the extra-maze cues presented to the rats during pre-training of the spatial version was changed during training of the intra-maze cued version. However, this deficit was not reversed either by maintaining the animals on the platform if the spatial cues were surrounded and covered with a curtain or by swimming sessions in the maze without the escape platform and the curtain. These findings suggest that none of the following elements alone, learned during the spatial task pre-training, could help SNc rats learn the intra-maze cued task: improvement of swimming skills or knowledge of the existence of the escape platform; distance between the platform and the border of the pool; location of a particular extra-maze cue; relations among extra-maze cues. However, the simultaneous presence of the escape platform and extra-maze cues (irrespective of their relational configuration) during the pre-training sessions proved to be necessary for this improving effect to occur.     

Secondary school pupils’ views of their school peer counselling for bullying service

Pupils (n=99) from two secondary schools in the UK were interviewed to investigate their views and experiences of the peer counselling for bullying service set up in their school. They were asked about various things concerning (1) the characteristics of the service and service providers that they valued and (2) their reasons for not using the service. Overall, a majority of participants reported a willingness to use this type of service and they identified numerous characteristics that they valued, including peer counsellors with good listening skills who were trustworthy and maintained confidentiality. A noteworthy proportion of participants also wanted the service to provide advice on solving bullying‐related problems. Some barriers to using the service were also identified, including fear of being stigmatised. Responses offered by girls and boys, and by users and non‐users of the service, were compared and several significant differences emerged. The results are discussed in terms of the implications for adults who run this type of service and the peer counsellors who deliver it.     

Dehumanizing but competent: The impact of gender,illness type,and emotional expressiveness on patient perceptions of doctors

This study is the first attempt to investigate men's and women's anticipated reactions to a consultation with a doctor holding either a dehumanizing or humanistic approach to patient treatment. Participants (N = 375) read a vignette depicting a doctor's treatment philosophy—emphasizing either the metaphor of the body as a machine (dehumanizing condition) or emphasizing individual humanness (humanizing condition). They then imagined consulting the doctor about a psychological or physical illness. Although, medical dehumanization had undesirable consequences, some men rated the dehumanizing doctor as more competent than the humanizing doctor. These were men who were (a) emotionally expressive and seeking help for a psychological illness, and (b) men low in emotional expressiveness seeking help for a physical illness.     

Profiles of emotion regulation: Understanding regulatory patterns and the implications for posttraumatic stress

Trauma survivors often experience posttraumatic stress (PTS) and report concurrent difficulties with emotion regulation (ER). Although individuals typically use multiple regulatory strategies to manage emotion, no studies yet examine the influence of a constellation of strategies on PTS in a community sample. We assessed six ER strategies and investigated whether specific profiles of ER (i.e. the typical pattern of regulation, determined by how often each strategy is used) were related to PTS. A hierarchical cluster analysis indicated that four distinct profiles were present: Adaptive Regulation, Active Regulation, Detached Regulation, and Maladaptive Regulation. Further analyses revealed that an individual's profile was not related to frequency of past trauma, but had the power to differentiate symptom severity for overall PTS and each symptom cluster of posttraumatic stress disorder. These findings highlight how profiles characterising multiple regulatory strategies offer a more complete understanding of the ways ER can account for PTS.     

Couple resilience and life wellbeing in firefighters

The validity of the Couple Resilience Inventory was tested using 102 married or cohabiting firefighters. This instrument measures types of relationship behavior that often occur during stressful life events and that are expected to be associated with an ability to cope with employment in a stressful occupation. It includes scales measuring two nearly orthogonal dimensions, with one dimension pertaining to positive behavior and the other to negative. Firefighters completed an online questionnaire that included the Couple Resilience Inventory and measures of relationship satisfaction, exposure to traumatic events, and life wellbeing. In line with hypotheses, scales measuring positive and negative couple resilience were nearly orthogonal to each other, and distinct from a measure of relationship satisfaction, but both scales correlated positively with exposure to traumatic events, and both correlated in opposite directions with relationship satisfaction and life wellbeing. Results were consistent with the theoretical model and they supported instrument validity.     

Children's Uncertain Responses when Testifying about Alleged Sexual Abuse in Scottish Courts

This study examined the uncertain responses of 56 alleged sexual abuse victims, aged 5–17 years, testifying in Scottish criminal court trials. Don't know/remember ground rules were explained to 38% of the children and each child reported uncertainty in response to 15% of the questions on average. Uncertain responding was associated with expressions of resistance and confusion, questioning context (proportionally more regarding substantive than non‐substantive issues), question content (least to disclosure‐focused questions), utterance type (more to directives, particularly those posed by defense lawyers; more to recall‐based than recognition prompts), and age (children in mid‐adolescence were less likely to respond uncertainly than those who were either older or younger). There were no associations between expressions of uncertainty and ground rule administration, or with whether or not the question focused on central rather than peripheral details about the alleged crimes. Findings highlight concerns surrounding preparatory procedures to help witnesses, especially adolescents, indicate uncertainty when testifying. Copyright © 2017 John Wiley & Sons, Ltd.     

Creating Supportive Environments for Children Who have had Exposure to Traumatic Events

The prevalence of trauma among young children and its impact on educational outcomes is gaining attention. It is probable that the needs of children who have experienced or been exposed to trauma have long gone unmet due to identification challenges and a lack of knowledge concerning best practices. For this study, qualitative interviews were conducted to gather perspectives of 14 community-based service providers who worked with children and families regarding trauma-related concerns. Each shared his or her perspectives on knowledge and skills early childhood education teachers need to support children who have experienced traumatic events and partner with their families. Research questions were: What should early childhood teachers know about (1) trauma experiences among young children; (2) the emotional and behavioral patterns of children who have experienced traumatic events; and (3) supporting the social and emotional well-being of children in the classroom setting, including partnering with families, who have experienced or been exposed to traumatic events? Participants indicated that teachers might not readily connect children’s behaviors and emotions to trauma. However, teachers can use approaches and strategies (e.g., being attuned and supporting positive social and emotional and communicative responses) that promote social and emotional well-being for children who experience trauma. Participants also noted that teachers can resist re-traumatization by making adaptations to social, physical, and temporal aspects of the classroom environment. Findings indicate that trauma-informed care might be viable in early childhood classroom settings. Implications for research are discussed.     

Are three-sample tasks less sensitive than two-sample tasks? Memory effects in the testing of taste discrimination

In order to provide insights into why discrimination protocols with three stimuli sometimes tend to be less sensitive than protocols with two stimuli, two experiments were conducted. In these experiments, the relative effects of memory decay and memory interference were investigated. Both experiments involved purified water and/or solutions of low NaCl concentration. In Experiment 1, three protocols were compared: the traditional same-different test (Protocol 1), the same protocol with a rinse between the two samples (Protocol 2), and Protocol 2 with an added time delay between the first sample and the intermediate rinse (Protocol 3.) The decrease in measured d' values as time delay increased indicated that memory decay might be a factor for tests with three stimuli, such as the triangle method, rendering it less sensitive than tests with two stimuli, such as the same-different method. In Experiment 2, four protocols were compared: the traditional same-different test, the two-rinse same-different test, the triangle test, and what will be called duo same-different test. The experimental design allowed the individual consideration of memory decay and interference effects. From this last experiment, the substantial effect of memory interference was uncovered. Further experimentation will be necessary to estimate the exact relative effects of memory interference and memory decay.     

Measuring the ability of transitive reasoning,using product and strategy information

Cognitive theories disagree about the processes and the number of abilities involved in transitive reasoning. This led to controversies about the influence of task characteristics on individuals' performance and the development of transitive reasoning. In this study, a computer test was constructed containing 16 transitive reasoning tasks having different characteristics with respect to presentation form, task format, and task content. Both product and strategy information were analyzed to measure the performance of 6- to 13-year-old children. Three methods (MSP, DETECT, and Improved DIMTEST) were used to determine the number of abilities involved and to test the assumptions imposed on the data by item response models. Nonparametric IRT models were used to construct a scale for transitive reasoning. Multiple regression was used to determine the influence of task characteristics on the difficulty level of the tasks. It was concluded that: (1) the qualitatively distinct abilities predicted by Piaget's theory could not be distinguished by means of different dimensions in the data structure; (2) transitive reasoning could be described by one ability, and some task characteristics influenced the difficulty of a task; and (3) strategy information provided a stronger scale than product information.