38 resultados para Perception, Action, Cognition, Constraints, Coordination


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This paper re-examines the relationship between affect and effect, discussing them as research values that have emerged from the life sciences, the arts and philosophy and, more importantly, considering them as systems of relations underpinning experiential orientation by which to initiate change and hold the world in place. The notion of æffect may be defined as the continuous measure performed upon the systems of affect/effect and reapplied to events and things. Æffect is a coordinated system of cognition where concurrent measures impact on each other. In doing so, they specify perception and action on multiple registers and scales of events. It is important to recognise that the functioning of affective and effective systems in the body allows, and even requires, paradoxical logics to coexist and be deployed as processes that shape the organism-person-environment. Discussion of selected works from Arakawa and Gins will supply examples of tactics that combine built environments with discursive constraints to guide embodied attention. The practice of embodied cognition dilates the thresholds separating the organism from person and the person from environment, and moves towards an atmospheric intricateness (Arakawa and Gins 2003a:25) that may become the blocs of a new materialism for heuristic life.

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This paper suggests ways in which art processes may contribute to the interdisciplinary study of perception and action and the relationships between body, person, and environment. Artists-turned-architects Arakawa and Gins serve as the most advanced example of an interdisciplinary research project in terms of coordinating material processes with contemporary findings, methods, and orientations from across the arts, humanities, and hard and soft sciences. In the first section of the paper, I discuss Arakawa and Gins's Reversible Destiny Lofts at Mitaka as an example of their procedural approach to long-term sustainable experimental environments. In the second section, the tactics through which Arakawa and Gins have repositioned art for the nonart purposes and common research goals are posited. Finally, I briefly outline the disciplinary positions and research values needed in order to move toward a more inclusive and interdisciplinary research practice.

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In this paper I argue that many of the core phenomenological insights, including the emphasis on direct perception, are a necessary but not sufficient condition for an adequate account of inter-subjectivity today. I take it that an adequate account of inter-subjectivity must involve substantial interaction with empirical studies, notwithstanding the putative methodological differences between phenomenological description and scientific explanation. As such, I will need to explicate what kind of phenomenology survives, and indeed, thrives, in a milieu that necessitates engagement with the relevant sciences, albeit not necessarily deference to them. There will be two central aims to this paper: 1. to defend the centrality and vitality of phenomenological treatments of inter-subjectivity via a consideration of some remarks in Sartre - which I do think possess a non-trivial unity amongst the various interlocutors - and the manner in which they in fact serve to provide the basis for a better explanation of an array of empirical data than existing inferentialist or mindreading accounts of social cognition (notably Theory Theory, Simulation Theory, and hybrid versions); 2. to offer the methodological resources for renewing phenomenology in a manner that acknowledges ostensibly non-phenomenological moments in theory production - which involve explanation, inference to the best explanation, etc. - but does not abandon phenomenology for all that, allowing it to be simply absorbed into empirical explanation or other forms of philosophical analysis without remainder.

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Aim. This paper presents findings from a multi-method study exploring the process of care coordination in children's inpatient health care.

Background. Existing work on care coordination is typified by 'black-box' type studies that measure inputs to and outcomes of care coordination roles and practices, without addressing the process of coordination.

Method. Using questionnaires, interviews and observation to collect data in multiple sites in the United Kingdom and Denmark between 1999 and 2005, the study gathered the perceptions of staff and compared these with observed practice. Giddens' structuration theory was used to provide an analytical and explanatory framework.

Findings. Current care coordination practice is diverse and inconsistent. It involves a wide range of clinical and non-clinical staff, many of whom perceive a lack of clarity about who should perform specific coordination activities. Staff draw upon a wide range of different material and non-material resources in coordinating care, the use of which is governed by largely tacit and informal rules.

Conclusions. Care coordination can be usefully conceptualized as a 'structurated' process – one that is continually produced and reproduced by staff using rules and resources to 'instantiate' or bring about care coordination through action. Potentially negative implications of this are manifested in diversity and inconsistency in care coordination practice. However, positive aspects such as the opportunity this provides to tailor care to the needs of the individual patient can be realized.

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This study examined how apology as interaction justice impacts on consumer perceptions of service recovery attempt.  Data was collected using hypothetical scenarios.  Two types of service failures were proposed and the impact of recovery action on each failure type was compared.  Findings include that there is direct effect of recovery action on consumer future intentions in both type of failures.  Implications and direction to the future research were proposed.

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Extant literature supports the growing importance of offering flexible modes of learning delivery in order to meet the needs of a diverse student cohort. The increased use of information and communication technologies (ICT) has lead to an enriched learning experience, but has also posed a number of constraints and challenges for students. Although there is an abundance of research regarding students’ perceptions, attitudes and satisfaction with the online learning environment, most of this is taken from the perspective of the distance education student. The purpose of this qualitative study is to examine these issues from the perspective of a mixed cohort of students (both on and off campus), who are required to complete a core, undergraduate marketing unit exclusively online.

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Limited research has been conducted concerning the actual practice of health education in Victorian schools. This study investigates the health education curriculum at a large primary school in the south-eastern suburbs of Melbourne. The investigation involves a critical analysis of current practices in health education in the upper school through the development of a ‘small’ action research group. Data were gathered through document collection, questionnaires, interviews, discussions, diary and reflective journal entries. The action research group, consisting of the teacher-researcher and upper school teachers, developed, implemented and reflected upon units of work piloted with upper school students. Alternative approaches to health education were explored. The aim was to accommodate critically informed discourse amongst colleagues to promote self-reflective enquiry and facilitate improvements to existing pedagogic practices. During the course of the investigation, factors limiting and facilitating action research and curriculum change in health education, became evident. These included personal, practical, curriculum and organisational constraints operating externally and internally on the school and classroom environments. Despite these constraints, it was demonstrated in this study, that action research can contribute to the improvement of pedagogic practices in health education. Small ‘authentic’ action research projects may provide alternative internal professional development structures for teachers and consequently improve learning opportunities for students.

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This article documents an action research (AR) project aimed at identifying the practical steps needed to become an agile manufacturer through a combination of the theory of constraints (TOC) and resource- based view (RBV) approaches in a small to medium enterprise (SME) in the Australian manufacturing sector. To date, lean production has been highlighted as a possible catalyst for creating an agile manufacturer, despite the evidence suggesting that lean manufacturing lacks the responsiveness and adaptability to effectively handle a rapidly changing market place and only works well in a stable environment. A more flexible system of production is required to fully encompass the agile characteristics needed to attain a competitive advantage. This research provides empirical evidence that the TOC perspective can be used as a practical approach for becoming an agile manufacturer. The study provides a workable approach for small firms to achieve ‘Agility’ in practice.

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Purpose: 

Breakfast consumption is associated with a range of beneficial health outcomes including improved overall diet quality, lower BMI, decreased risk of chronic disease, and improved cognitive function. Although there are many models of health and social behaviour, there is a paucity of research utilising these in breakfast consumption and very few studies that directly compare these models. This study compares the Theory of Planned Behaviour (TPB) and the Health Action Process Approach (HAPA) in predicting breakfast consumption.

Methodology:
University students (N=102; M = 19.5 years) completed a questionnaire measuring demographics, TPB and HAPA motivational variables, and intentions. Behaviour and HAPA volitional variables were measured four weeks later.

Findings:
Using structural equation modelling, it was found that the TPB model was a superior fit to the data across a range of model indices compared to the HAPA. Both models significantly predicted both intentions and behaviour at follow up; however, the TPB predicted a higher proportion of the variance in breakfast consumption (47.6%) than the HAPA (44.8%). Further, the volitional variables did not mediate the intention-behaviour gap, and the data were not an adequate statistical fit to the model compared to the TPB.

Research Implications:
The results support the use of the TPB and shows that that some aspects of the HAPA are useful in predicting breakfast consumption, suggesting that risk perception and self-efficacy be targeted in interventions to increase behaviour. The volitional variables did not appear to mediate breakfast consumption indicating that intention is still the strongest predictor, at least in this behaviour

Originality:
The current study is the first to compare the TPB and HAPA in predicting breakfast consumption

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Movement skill competence is important to organised youth physical activity participation, but it is unclear how adolescents view this relationship. The primary aim of this study was to explore adolescents’ perception of the relationship between movement skills, physical activity and sport, and whether their perceptions differed according to extent of participation in organised physical activities. We recruited 33 (17 male) Grade 11 and 12 students (aged 16 to 18) from two secondary schools in Australia. Focus groups were allocated according to whether or not students participated in organised physical activity, where ‘organised activity’ was defined as activity which involved regular classes, training or competition, was reasonably structured or formal, or had a teacher, instructor or coach. There were three all-male ‘organised’ groups, one mixed-gender ‘organised’ group and one all-female ‘not-organised’ group. Students were asked about their attitudes towards physical activity and sport, the relationship between childhood skill proficiency and later physical activity and their perceptions of the appropriate time taken to learn movement skills. Group discussions lasted for approximately 50 minutes, were recorded and were then transcribed verbatim. Transcripts were read using a constant comparison method, in which quotes were continually compared to other quotes. A thematic analysis was conducted in which the transcripts were analysed inductively. Participation in organised sport had no bearing on opinions regarding whether lack of childhood skill development would negatively impact latter participation. It did, however, subtly influence opinions regarding whether skill could be successfully acquired later in life. When asked whether not having well-developed skills as a child would negatively impact on participation in sport/physical activity later in life, the response was mixed, but this was not related to their involvement in organised sport or activities. Students who believed early skill proficiency related to subsequent activity thought this was due to skill ability and motivation. An alternate view was that subsequent activity did not need to be based on skill proficiency; also, one’s environment might change, resulting in differing opportunities/constraints. Students felt skills could be learnt at any time in life (dependent on motivation), but that learning skills at a younger age would be easier and that skills learnt later would not be as developed. Fear of failure was identified as a barrier to learning when older. We conclude that motivation towards participation in sport and physical activity is affected by adolescents’ perception of their own movement skill ability. Therefore, developing children’s actual and perceived movement skills may help to increase adolescent physical activity. Since those with intrinsic achievement orientations were not as inclined towards organised activity, we may also need to provide physical activity options that resonate with intrinsic achievement motivations.

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Background
Although there are a number of plausible accounts to explain movement clumsiness in children [or developmental coordination disorder (DCD)], the cause(s) of the disorder remain(s) an issue of debate. One aspect of motor control that is particularly important to the fluid expression of skill is rapid online control (ROC). Data on DCD have been conflicting. While some recent work using double-step reaching suggests no difficulty in online control, others suggest deficits (e.g. based on sequential pointing). To help resolve this debate, we suggest two things: use of recent neuro-computational models as a framework for investigating motor control in DCD, and more rigorous investigation of double-step reaching. Our working assumption here is that ROC is only viable through the seamless integration of predictive (or forward) models of movement and feedback-based mechanisms.

Aim
The aim of this chronometric study was to explore ROC in children with DCD using a double-step reaching paradigm. We predicted slower online adjustments in DCD based on the argument that these children manifest a core difficulty in predictive control.

Methods
Participants were a group of 17 children with DCD and 27 typically developing children aged between 7 and 12 years. Visual targets were presented on a 17-inch LCD touch screen, inclined to an angle of 15° from horizontal. The children were instructed to press each target as it appeared as quickly and accurately as possible. For 80% of the trials, the central target location remained unchanged for the duration of the movement (non-jump trials), while for the remaining 20% of trials, the target jumped at movement onset to one of the two peripheral locations (jump trials). Reaction time (RT), movement time (MT) and reaching errors were recorded.

Results
For both groups, RT did not vary according to trial condition, while children with DCD were slower to initiate movement. Further, the MT of children with DCD was prolonged to a far greater extent on jump trials relative to controls, with a large effect size. As well, children with DCD committed significantly more errors, notably a reduced ability to inhibit central responses on jump trials.

Conclusion
Our findings help reconcile some disparate findings in the literature using similar tasks. The pattern of performance in children with DCD suggests impairment in the ability to make rapid online adjustments that are based on a predictive (or internal) model of the action. These results pave the way for future kinematic investigation.

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For children with Developmental Coordination Disorder (DCD), the real-time coupling between frontal executive function and online motor control has not been explored despite reported deficits in each domain. The aim of the present study was to investigate how children with DCD enlist online control under task constraints that compel the need for inhibitory control. A total of 129 school children were sampled from mainstream primary schools. Forty-two children who met research criteria for DCD were compared with 87 typically developing controls on a modified double-jump reaching task. Children within each skill group were divided into three age bands: younger (6-7 years), mid-aged (8-9), and older (10-12). Online control was compared between groups as a function of trial type (non-jump, jump, anti-jump). Overall, results showed that while movement times were similar between skill groups under simple task constraints (non-jump), on perturbation (or jump) trials the DCD group were significantly slower than controls and corrected trajectories later. Critically, the DCD group was further disadvantaged by anti-jump trials where inhibitory control was required; however, this effect reduced with age. While coupling online control and executive systems is not well developed in younger and mid-aged children, there is evidence of age-appropriate coupling in older children. Longitudinal data are needed to clarify this intriguing finding. The theoretical and applied implications of these results are discussed.