Navigating through apertures: perceptual judgements and actions of children with Developmental Coordination Disorder

Passing through a narrow gap/aperture involves a perceptual judgement regarding the size of the gap and an action to pass through. Children with DCD are known to have difficulties with perceptual judgements in near space but whether this extends to far space is unknown. Furthermore, in a recent study it was found that adults with DCD do not scale movements when walking through an aperture in the same way as their peers. The current study, therefore, considered perceptual judgements and motor behaviour of children with DCD while looking at or walking through apertures. Twenty‐nine children with DCD and 29 typically developing (TD) children took part. In Experiment 1, participants completed a perceptual task, where they made passability judgements. Children with DCD showed a significantly smaller critical ratio (aperture size at which a participant first rotates the shoulders to pass through) compared to their TD peers. In Experiment 2, participants completed an action task where they walked through the same apertures. Children with DCD showed a significantly larger critical ratio than TD peers when body size alone was accounted for. Taken together these results suggest that perception within a static context is different from that within a dynamic context for children with DCD. However, despite this difference we have demonstrated a clear relationship between perception and action in children with DCD. A video abstract of this article can be viewed at: https://youtu.be/SABXFrAJtF8     

Active engagement in a web-based tutorial to prevent obesity grounded in Fuzzy-Trace Theory predicts higher knowledge and gist comprehension

We used Sharable Knowledge Objects (SKOs) to create an Intelligent Tutoring System (ITS) grounded in Fuzzy-Trace Theory to teach women about obesity prevention: GistFit, getting the gist of healthy eating and exercise. The theory predicts that reliance on gist mental representations (as opposed to verbatim) is more effective in reducing health risks and improving decision making. Technical information was translated into decision-relevant gist representations and gist principles (i.e., healthy values). The SKO was hypothesized to facilitate extracting these gist representations and principles by engaging women in dialogue, “understanding” their responses, and replying appropriately to prompt additional engagement. Participants were randomly assigned to either the obesity prevention tutorial (GistFit) or a control tutorial containing different content using the same technology. Participants were administered assessments of knowledge about nutrition and exercise, gist comprehension, gist principles, behavioral intentions and self-reported behavior. An analysis of engagement in tutorial dialogues and responses to multiple-choice questions to check understanding throughout the tutorial revealed significant correlations between these conversations and scores on subsequent knowledge tests and gist comprehension. Knowledge and comprehension measures correlated with healthier behavior and greater intentions to perform healthy behavior. Differences between GistFit and control tutorials were greater for participants who engaged more fully. Thus, results are consistent with the hypothesis that active engagement with a new gist-based ITS, rather than a passive memorization of verbatim details, was associated with an array of known psychosocial mediators of preventive health decisions, such as knowledge acquisition, and gist comprehension.     

TACIT: An open-source text analysis,crawling, and interpretation tool

As human activity and interaction increasingly take place online, the digital residues of these activities provide a valuable window into a range of psychological and social processes. A great deal of progress has been made toward utilizing these opportunities; however, the complexity of managing and analyzing the quantities of data currently available has limited both the types of analysis used and the number of researchers able to make use of these data. Although fields such as computer science have developed a range of techniques and methods for handling these difficulties, making use of those tools has often required specialized knowledge and programming experience. The Text Analysis, Crawling, and Interpretation Tool (TACIT) is designed to bridge this gap by providing an intuitive tool and interface for making use of state-of-the-art methods in text analysis and large-scale data management. Furthermore, TACIT is implemented as an open, extensible, plugin-driven architecture, which will allow other researchers to extend and expand these capabilities as new methods become available.     

Reliability of the bipolar form of the profile of mood states using an alternative test protocol

The bipolar version of Profile of Mood States was completed by 124 participants (58 women and 66 men, M age 26.5, SD=3.9 yr.) on two occasions--once when the measure was self-administered according to that test protocol and once when POMS-BI items were projected onto a screen with participants being asked to provide oral responses to items. Data from both modes of administration provided similar support for the internal consistency of the measure (alpha values ranged from .78 to .90).     

Coping sense of humor reduces effects of stereotype threat on women's math performance

Two studies demonstrated that coping sense of humor buffered women against the effects of stereotype threat on math performance. Using a correlational design, Study 1 demonstrated that women low in coping sense of humor assessed their performance on standardized math tests lower than did men and lower than did women high in coping sense of humor. Using an experimental design, Study 2 showed that coping sense of humor was positively related to women's performance on a math test taken under conditions of stereotype threat but not under conditions of no stereotype threat. Mediation analyses suggest that in the stereotype-threat condition, state anxiety mediated the relationship between coping sense of humor and test performance. Women higher in coping sense of humor performed better because they felt less anxiety while taking the test.     

Personality disorder and future-directed thinking in parasuicide

Parasuicide patients have been found to lack positive expectations for the future. The aim of the present study was to look at variations in this lack of positive future-thinking as a function of personality status. A sample (N = 442) of repeat parasuicide patients was assessed on positive and negative future-thinking and the presence of personality disorder or personality difficulty. Those with a Cluster B personality disorder (borderline or dissocial) were significantly lower in positive future-thinking than those with no Cluster B symptoms or those with Cluster B personality difficulty. Neither Cluster A nor Cluster C symptomatology was related to positive future-thinking. Negative future-thinking was not significantly related to any type of personality disorder or difficulty. The results are interpreted as evidence of the importance of personality status in influencing positive future-thinking and gives some indications of why those with Cluster B personality disorder have such high rates of recurrent self-harm.     

Mind the gap: interhemispheric communication about emotional faces

This study tested the hypothesis that interhemispheric communication about emotional stimuli is influenced by situational factors that alter emotional relevance. Under evaluative or nonevaluative conditions, participants matched angry and happy faces within a single visual field or across opposite visual fields. An overall across-field advantage (AFA) reflected the benefit of sharing information between the hemispheres. The AFA was greater for angry than for happy faces in the evaluation condition but did not differ for angry and happy faces in the no-evaluation condition. Examination of individual differences indicated that high trait evaluation levels of worry were associated with poorer interhemispheric communication of angry faces, supporting a threat-avoidance conception of worry. Thus, both situational factors and individual differences affected interhemispheric communication about emotional faces.     

The cost-effectiveness of cognitive behavior therapy for borderline personality disorder: results from the BOSCOT trial

Borderline personality disorder places a significant burden on healthcare providers and other agencies. This study evaluated the cost-effectiveness of cognitive behavior therapy plus treatment as usual compared to treatment as usual alone for patients with borderline personality disorder. The economic analysis was conducted alongside a multi-center, randomized controlled trial. The costs of primary and secondary healthcare utilization, alongside the wider economic costs, were estimated from medical records and patient self-report. The primary outcome measure used was the quality-adjusted life year (QALY), assessed using EuroQol. On average, total costs per patient in the cognitive behavior therapy group were lower than patients receiving usual care alone (-689 pounds sterling), although this group also reported a lower quality of life (-0.11 QALYs). These differences were small and did not approach conventional levels of statistical significance. The use of cognitive therapy for borderline personality disorder does not appear to demonstrate any significant cost-effective advantage based on the results of this study.     

Developmental patterns of African American and Caucasian adolescents' alcohol use

This study examined the developmental alcohol use trajectories of Caucasian and African American adolescents. Participants were 1,358 adolescents (77.6% Caucasian). Results suggest that not only do patterns of alcohol use differ for Caucasian and African American adolescents, but that there is substantial within group variation as well. Results suggest that using a within-groups developmental approach is one promising way to identify subgroups of adolescents at greatest risk for substance use.