The effect of blinks and saccadic eye movements on visual reaction times

Vision is suppressed during blinks and saccadic eye movements. We hypothesized that visual reaction times (RTs) in a vigilance test would be significantly increased when a blink or a saccade happened to coincide with the stimulus onset. Thirty healthy volunteers each performed a visual RT test for 15 min while their eye and eyelid movements were monitored by a system of infrared reflectance oculography. RTs increased significantly, many by more than 200 msec, when a blink occurred between 75 msec before and up to 150 msec after the stimulus onset. A similar result was observed with saccades that started 75 to 150 msec after the stimulus. Vision or attention was evidently inhibited before each blink and for longer than the saccades lasted. We suggest that visual suppression is involved in this process, which could explain some of the normal variability in RTs over periods of seconds that has not been adequately explained before.     

Deliberative Democracy,Critical Rationality and Social Memory: Theoretical Resources of an ‘Education for Discourse’

This article brings interconnects three debates to show what this might imply for the ‘redemocratisation’ of UK society and for pedagogical reform. One debate concerns deliberative types of democratic reform, arguing in favour of a ‘creative agnosticism’ towards the two philosophical frameworks which dominate this literature. This leads into a discussion of education and critical rationality, arguing for an aptitude-based account of moral agency, one which relates to the sociocultural resources we inherit from the past. The final debate therefore concerns social memory. I do not offer a theory of social memory but critique various commentators in arguing for what I call a ‘multipolar analysis’. This both describes the analytical method adopted in this article and the skills and capacities which a system based upon ‘education for discourse’ would need to facilitate. The article therefore proposes that democracy, education and memory—deliberativeness, critical rationality and social remembering—be brought closer together for the mutual benefit of each debate.

Effects of guided immune-imagery: The moderating influence of openness to experience

It is widely believed that personality has an important role in determining the effectiveness of guided imagery (GI) interventions. The primary aim of the current study was to examine whether the effect of GI on several outcome measures was dependent upon openness to experience, a theoretically relevant variable previously unexplored as a potential moderator. Thirty-five healthy participants were randomised to an animated imagery, verbal imagery or no-intervention control group, with imagery groups receiving 10 × 20 min sessions. Pre/post-assessments of cortisol, sleep, stress and creativity were administered along with the openness to experience scale. Regression analysis indicated a significant increase in cortisol and decrease in tiredness following verbal GI, but only for those high in openness. The efficacy of GI interventions may be dependent upon openness to experience and this variable should be accounted for in future studies.     

Reliability of a Longitudinal Sequence of Scale Ratings

Reliability captures the influence of error on a measurement and, in the classical setting, is defined as one minus the ratio of the error variance to the total variance. Laenen, Alonso, and Molenberghs (Psychometrika 73:443–448, 2007) proposed an axiomatic definition of reliability and introduced the R _T coefficient, a measure of reliability extending the classical approach to a more general longitudinal scenario. The R _T coefficient can be interpreted as the average reliability over different time points and can also be calculated for each time point separately. In this paper, we introduce a new and complementary measure, the so-called R _Λ , which implies a new way of thinking about reliability. In a longitudinal context, each measurement brings additional knowledge and leads to more reliable information. The R _Λ captures this intuitive idea and expresses the reliability of the entire longitudinal sequence, in contrast to an average or occasion-specific measure. We study the measure’s properties using both theoretical arguments and simulations, establish its connections with previous proposals, and elucidate its performance in a real case study. The authors are grateful to J&J PRD for kind permission to use their data. We gratefully acknowledge support from Belgian IUAP/PAI network “Statistical Techniques and Modeling for Complex Substantive Questions with Complex Data.”     

Human rights and correctional clinical practice

The formulation of human rights theory and policies represents an ethical advance and promises to supply a framework for resolving ethnic, social, and individual conflicts. Ethics is essentially a means for coordinating the conflicting interests of peoples and nations and human rights provide a strong foundation to do this in multiple domains. Our aim in this paper is to apply a human rights perspective, in association with a justifying theory and set of goods, to the correctional arena. First, we discuss the definition of human rights, their proper analysis and justification. We then apply the results of our discussion to the assessment, treatment, and monitoring of offenders. Finally, we consider the policy, research, and intervention implications of a human rights perspective for correctional practitioners.     

The reasoning skills and thinking dispositions of problem gamblers: a dual‐process taxonomy

We present a taxonomy that categorizes the types of cognitive failure that might result in persistent gambling. The taxonomy subsumes most previous theories of gambling behavior, and it defines three categories of cognitive difficulties that might lead to gambling problems: The autonomous set of systems (TASS) override failure, missing TASS output, and mindware problems. TASS refers to the autonomous set of systems in the brain (which are executed rapidly and without volition, are not under conscious control, and are not dependent on analytic system output). Mindware consists of rules, procedures, and strategies available for explicit retrieval. Seven of the eight tasks administered to pathological gamblers, gamblers with subclinical symptoms, and control participants were associated with problem gambling, and five of the eight were significant predictors in analyses that statistically controlled for age and cognitive competence. In a commonality analysis, an indicator from each of the three categories of cognitive difficulties explained significant unique variance in problem gambling, indicating that each of the categories had some degree of predictive specificity. Copyright © 2006 John Wiley & Sons, Ltd.