Deeper attentional masking by lateral objects in children with autism

Autism spectrum disorder (ASD) is often associated with a detail-oriented perception and overselective attention in visual tasks, such as visual search and crowding. These results were obtained manipulating exclusively the spatial properties of the stimuli: few is known about the spatio-temporal dynamics of visual processing in ASD. In this study we employed an attentional masking (AM) paradigm comparing children with ASD and IQ-matched typically developing (TD) controls. The AM effect refers to an impaired identification of a target followed by a competitive masking object at different proximities in space and time. We found that ASD and TD groups did not differ in the AM effect provoked by the competitive object displayed in the same position of the target. In contrast, children with ASD showed a deeper and prolonged interference than the TD group when the masking object was displayed in the lateral position. These psychophysical results suggest that the inefficient attentional selection in ASD depends on the spatio-temporal interaction between competitive visual objects. These evidence are discussed in the light of the ASD altered neural connectivity hypothesis and the reentrant theory of perception.     

Do behavioural self-blame and stigma predict positive health changes in survivors of lung or head and neck cancers?

Survivors of lung or head and neck cancers often change tobacco and alcohol consumption after diagnosis, but few studies have examined other positive health changes (PHCs) or their determinants in these groups. The present study aims to: (a) document PHCs in survivors of lung (n?=?107) or head and neck cancers (n?=?99) and (b) examine behavioural self-blame and stigma as determinants of PHCs. We hypothesised that: (a) survivors would make a variety of PHCs; (b) behavioural self-blame for the disease would positively predict making PHCs; and (c) stigma would negatively predict making PHCs.

Methods: Respondents self-administered measures of PHC, behavioural self-blame, and stigma. Hierarchical multiple regression analysis tested the hypotheses.

Results: More than 65% of respondents reported making PHCs, the most common being changes in diet (25%), exercise (23%) and tobacco consumption (16.5%). Behavioural self-blame significantly predicted PHCs but stigma did not. However, both behavioural self-blame and stigma significantly predicted changes in tobacco consumption.

Conclusions: Many survivors of lung or head and neck cancers engage in PHCs, but those who do not attribute the disease to their behaviour are less likely to do so. Attention to this problem and additional counselling may help people to adopt PHCs.     

exploring drug users' illness representations of hiv,hepatitis b and hepatitis c using repertory grids

Abstract

Hepatitis B and C viruses are more prevalent among injecting drug users than HIV. This study explored drug users' illness representations of hepatitis B and C using repertory grid methodology. Initially, nine drug users were presented with six elements including hepatitis B and C, and HIV. Constructs were elicited via the sequential form variation of the method of triads. Elements were rated on elicited constructs using a five-point scale, and analyzed using “Flexigrid”. In a second quantitative research stage, 52 drug users were presented with six elements and supplied constructs. Results of the first stage indicated participants were able to generate constructs relating to Leventhal et al.'s (1980) features of illness representations. Most constructs, however, were causal in nature. Participants perceived hepatitis B, C and HIV similarly along the causal component. This similarity on the causal component was largely replicated in the second research stage. Participants, however, distinguished HIV from hepatitis B and C along serious, cure and timeline features. Participants did not distinguish hepatitis B from hepatitis C. The implications of these results for health promotion are discussed.     

Poor Readers but Compelled to Read: Stroop Effects in Developmental Dyslexia

We studied a group of 24 children with dyslexia in second to fifth primary school grades by using a discrete-trial computerized version of the Stroop Color-Word Test. Since the classic Stroop effect depends on the interference of reading with color naming, one would expect these children to show no interference or, at least, less interference than normal readers. Children with dyslexia showed, however, a Stroop effect larger than normal readers of the same age. This suggests that reading, although difficult and slow, is an inescapable step that precedes naming both in poor and in normal readers.     

Shell games,information, and counterfactuals

Cohen and Meskin 2006 Cohen, Jonathan and Aaron, Meskin. 2006. An Objective Counterfactual Theory of Information. Australasian Journal of Philosophy, 84: 333–352. [Taylor &; Francis Online], [Web of Science ®] , [Google Scholar] have recently proposed a novel counterfactual account of information. I argue that it is a step down from its intended target, namely Dretske's 1981 Dretske, Fred. 1981. Knowledge and the Flow of Information, Cambridge Mass: MIT Press.  [Google Scholar] theory of information. Thinking of the information carried by signals in terms of counterfactuals leads to falsely diagnosing bona fide instances of information transmission as not being instances of information transmission at all, with major loss of explanatory power.     

Attentional bias and emotional reactivity as predictors and moderators of behavioral treatment for social phobia

Cognitive behavioral therapy (CBT) is a well-established treatment for anxiety disorders, and evidence is accruing for the effectiveness of acceptance and commitment therapy (ACT). Little is known about factors that relate to treatment outcome overall (predictors), or who will thrive in each treatment (moderators). The goal of the current project was to test attentional bias and negative emotional reactivity as moderators and predictors of treatment outcome in a randomized controlled trial comparing CBT and ACT for social phobia. Forty-six patients received 12 sessions of CBT or ACT and were assessed for self-reported and clinician-rated symptoms at baseline, post treatment, 6, and 12 months. Attentional bias significantly moderated the relationship between treatment group and outcome with patients slow to disengage from threatening stimuli showing greater clinician-rated symptom reduction in CBT than in ACT. Negative emotional reactivity, but not positive emotional reactivity, was a significant overall predictor with patients high in negative emotional reactivity showing the greatest self-reported symptom reduction.     

An adolescent perspective on injury recovery and the return to sport

ObjectivesThe purpose of this investigation was to examine adolescent athletes' injury recovery and return-to-sport experiences. Given previous research highlighting competence, autonomy, and relatedness concerns among returning athletes (Podlog & Eklund, 2006), we sought to examine the extent to which basic psychological needs theory (BPNT: Ryan & Deci, 2007) could be used as framework for interpreting the research findings.DesignA qualitative design was employed in the present investigation.MethodEleven Australian athletes (M age = 15.3) who had incurred a range of severe injuries (e.g., anterior cruciate ligament tears, shoulder dislocations) were interviewed on 2–3 occasions (n = 27 interviews) spanning an 11-month period.ResultsAnalysis of the data revealed the following four key themes: (a) injury stress, (b) coping strategies, (c) experiences with social support, and (d) recovery outcomes. Injury stress provides insights into a range of stressors and strain responses reported by the adolescents across the recovery phases, while the theme on coping highlights the specific strategies used to maintain motivation, reduce uncertainties associated with the injury experience, and to keep focused on future athletic attainment. The third theme, experiences with social support, considers the transactions the adolescents held with members of their social network throughout their recovery. The final theme, recovery outcomes, describes participant perceptions of a successful/unsuccessful recovery and stress-related growth.ConclusionsResults suggest that competence and relatedness issues highlighted in BPNT may be relevant in exploring adolescent athletes' injury experience. Somewhat less evidence for the autonomy dimension of BPNT was apparent in adolescent comments.     

In search of a surrogate for touch: The effect of haptic imagery on perceived ownership

Previous research has shown that individuals value objects more highly if they own them, a finding commonly known as the endowment effect. In fact, simply touching an object can create a perception of ownership that produces the endowment effect. In this paper, we extend this line of research in several ways. First, we show that haptic imagery, or imagining touching an object, can have the same effect on perceived ownership as physical touch. We then demonstrate that haptic imagery can lead to perceptions of physical control, which in turn increase feelings of ownership. Moreover, the more vivid the haptic imagery, the greater the perception of control and the feeling of ownership. Implications for theory and practice are discussed.     

Investigating the Role of Emotion in Science Center Visitor Learning

ABSTRACT

A number of investigators have argued that emotion plays an important role in free-choice learning in settings such as museums, science centers, zoos, and aquariums, particularly given the relationship between emotion and cognition. Despite considerable research on the cognitive aspects of visits, empirical studies on emotion in such settings are virtually non-existent. This study investigated the role that emotion plays in facilitating and enhancing learning at a science center. Three major research questions were addressed: (a) Can emotion be measured using Russell's Affect Grid in a non-laboratory setting such as an interactive science center? (b) If so, do different types of science center experiences create measurably different levels of emotional arousal and/or valence in visitors? and (c) If so, was there evidence that elevated arousal and/or valence enhanced or retarded visitors' long-term cognitive science learning? The study provided evidence that emotion could be measured using a modified Affect Grid technique and that a particular traveling exhibition generated arousal levels above baseline levels as determined by a control group. Findings suggest a relationship between emotional arousal and positive changes in visitor long-term cognition, attitudes, and behaviors.     

Public Participation and Scientific Citizenship in the Science Museum in London: Visitors’ Perceptions of the Museum as a Broker

ABSTRACT

Science museums in Europe play an emerging and important role as brokers between the public and policy-making institutions and are becoming platforms that enable scientific citizenship. To do so, museums rely on the participation of their visitors. However, little is known about the relation between visitors’ interest to participate, their engagement with science, and their perceptions of the museum as a platform of scientific citizenship. This study analyzes visitors’ interest in 3 levels of participation: Sharing opinions and feedback (the museum as “forum”); co-developing programs and activities; and participating in the governance of the museum. Quantitative analysis of the data from a survey conducted among 364 adult visitors to the Science Museum in London reveals that interest in the forum function of the museum does not depend on visitors’ prior engagement with science, but rather on how the museum enables the scientific citizenship of its visitors. However, for interest in co-development the reverse was found—previous engagement and frequent visits are more important than scientific citizenship. The forum function of the museum and its perceived role in public policy further determine visitors’ interest in museum governance.