A developmental study on effective filtering : the role of flanker distance and perceptual load

The effect of perceptual load and target-flanker proximity on developmental patterns of filtering efficiency was examined among children 5-12 years and a group of adults. The participants were asked to respond to a centrally presented arrow surrounded by congruent or incongruent flanker arrows. Filtering was operationalized in terms of the flanker congruency effect (FCE) and measured as the response latency difference between trials with incongruent flankers versus trials with congruent flankers. Conditions varied with regard to target-flanker distances and levels of perceptual load. Developmental changes in susceptibility to the FCE did not appear to be related to target-flanker proximity, but were related to a perceptual load manipulation that involved varying the response associated with the target. The FCE was larger in magnitude for 7-10 year old children than for 11-12 year old children and adults under low perceptual load conditions. However, these developmental differences in susceptibility to the effects of interference were no longer apparent under high perceptual load conditions. This finding suggests differential developmental trajectories for filtering efficiency based on the processing demands involved in the task, and can be understood within the framework of the perceptual load model of selective attention

Kognitiv oplæring i canadiske fængsler

Intet resum

Perceptual Grouping and Distance Estimates in Typical and Atypical Development: Comparing Performance across Perception, Drawing and Construction Tasks

Perceptual grouping is a pre-attentive process which serves to group local elements into global wholes, based on shared properties. One effect of perceptual grouping is to distort the ability to estimate the distance between two elements. In this study, biases in distance estimates, caused by four types of perceptual grouping, were measured across three tasks, a perception, a drawing and a construction task in both typical development (TD; Experiment 1) and in individuals with Williams syndrome (WS; Experiment 2). In Experiment 1, perceptual grouping distorted distance estimates across all three tasks. Interestingly, the effect of grouping by luminance was in the opposite direction to the effects of the remaining grouping types. We relate this to differences in the ability to inhibit perceptual grouping effects on distance estimates. Additive distorting influences were also observed in the drawing and the construction task, which are explained in terms of the points of reference employed in each task. Experiment 2 demonstrated that the above distortion effects are also observed in WS. Given the known deficit in the ability to use perceptual grouping in WS, this suggests a dissociation between the pre-attentive influence of and the attentive deployment of perceptual grouping in WS. The typical distortion in relation to drawing and construction points towards the presence of some typical location coding strategies in WS. The performance of the WS group differed from the TD participants on two counts. First, the pattern of overall distance estimates (averaged across interior and exterior distances) across the four perceptual grouping types, differed between groups. Second, the distorting influence of perceptual grouping was strongest for grouping by shape similarity in WS, which contrasts to a strength in grouping by proximity observed in the TD participants

Four forms of 'offender' rehabilitation: Towards an interdisciplinary perspective

This paper aims to advance the case for a more fully interdisciplinary understanding of offender rehabilitation, partly as a means of shedding light upon and moving beyond contemporary ‘paradigm conflicts’. It begins with a review of current arguments about what a credible ‘offender’ rehabilitation theory requires and by exploring some aspects of current debates about different theories. It goes on to locate this specific kind of contemporary theory building in the context of historical arguments about and critiques of rehabilitation as a concept and in practice. In the third part of the paper, I explore the nature of the relationship between desistance theories and rehabilitation theories, so as to develop my concluding argument; that is, that debates about psychological rehabilitation have been hampered by a failure to engage fully with debates about at least three other forms of rehabilitation (legal, moral, and social) that emerge as being equally important in the process of desistance fr

Reexamining evidence-based practice in community corrections: beyond 'a confined view' of what works

This article aims to reexamine the development and scope of evidence-based practice (EBP) in community corrections by exploring three sets of issues. Firstly, we examine the relationships between the contested purposes of community supervision and their relationships to questions of evidence. Secondly, we explore the range of forms of evidence that might inform the pursuit of one purpose of supervision—the rehabilitation of offenders—making the case for a fuller engagement with “desistance” research in supporting this process. Thirdly, we examine who can and should be involved in conversations about EBP, arguing that both ex/offenders’ and practitioners’ voices need to be respected and heard in this debate

Creativity, self-exploration and change: creative-arts based activities and transformational identity desistance narratives

This exploratory article is based on interviews and focus groups with prisoners reflecting on the benefits of engaging in creative arts-based activities. Desistance theorists emphasise the importance of judgments based on individual personal impressions, feelings and opinions in offenders’ co-production and ownership of their desistance narratives. The data presented here are used to illustrate the positive changes in offenders’ subjective understandings and to highlight the appropriateness of using more nuanced research designs to provide evidence of effectiveness of engagement with arts-based projects

Seeing and believing: Observing desistance-focused practice and enduring values in the National Probation Service

This article focuses on the feasibility of using a desistance-focused approach in the National Probation Service (NPS) in the post-Transforming Rehabilitation (TR) context. Findings are drawn from an exploratory study undertaken in one NPS Division, which used triangulation of three data collection methods; observations of one-to-one supervision sessions, documentary analysis and practitioner focus groups. Findings show that practitioners use elements of a desistance-focussed approach, although not exclusively. Values based upon belief in the capacity to change and the need to offer support endure, despite mass organisational upheaval. The article concludes by suggesting that this 'enduring habitus' of probation could be an enabler for a desistance-focused approach but instrumentalism in policy and practice is a significant barrier

I wanted to feel the way they did: Mimesis as a situational dynamic of peer mentoring by ex-offenders

This is an Accepted Manuscript of an article published by Taylor & Francis in Deviant Behavior on 10/10/2016, available online: http://www.tandfonline.com/doi/full/10.1080/01639625.2016.1237829Despite growing enthusiasm for peer mentoring as a criminal justice intervention, very little is known about what actually happens within these relationships. Drawing on an ethnographic study of peer mentoring in the North of England this article will foreground the concept of inspiration” in these settings. It will argue that Rene Girard’s theory of mimesis offers a framework with which to analyze role modeling in mentoring relationships and that a Girardian reading also offers interesting insights into the unresolved problem of the origins of personal change

Effects of cognitive-behavioral programs for criminal offenders

Cognitive-behavioral therapy (CBT) is among the more promising rehabilitative treatments for criminal offenders. Reviews of the comparative effectiveness of different treatment approaches have generally ranked it in the top tier with regard to effects on recidivism (e.g., Andrews et al., 1990; Lipsey & Wilson, 1998). It has a well-developed theoretical basis that explicitly targets “criminal thinking” as a contributing factor to deviant behavior (Beck, 1999; Walters, 1990; Yochelson & Samenow, 1976). And, it can be adapted to a range of juvenile and adult offenders, delivered in institutional or community settings by mental health specialists or paraprofessionals, and administered as part of a multifaceted program or as a stand-alone intervention. Meta-analysis has consistently indicated that CBT, on average, has significant positive effects on recidivism. However, there is also significant variation across studies in the size of those treatment effects. Identification of the moderator variables that describe the study characteristics associated with larger and smaller effects can further develop our understanding of the effectiveness of CBT with offenders. Of particular importance is the role such moderator analysis can play in ascertaining which variants of CBT are most effective. The objective of this systematic review is to examine the relationships of selected moderator variables to the effects of CBT on the recidivism of general offender populations