Background: Differential learning is a motor learning method characterized by high amounts of variability during practice and is claimed to provide the learner with a higher learning rate than other methods. However, some controversy surrounds DL theory, and to date, no overview exists that compares the effects of DL to other motor learning methods.Objective: To evaluate the effectiveness of DL in comparison to other motor learning methods in the acquisition and retention phase.Design: Systematic review and exploratory meta-analysis.Methods: PubMed, Web of (...) Science, and Google Scholar were searched until February 3, 2020. To be included, studies had to be experiments where the DL group was compared to a control group engaged in a different motor learning method, studies had to describe the effects on one or more measures of performance in a skill or movement task, and the study report had to be published as a full paper in a journal or as a book chapter.Results: Twenty-seven studies encompassing 31 experiments were included. Overall heterogeneity for the acquisition phase as well as for the retention phase was large, and risk of bias was high. The meta-analysis showed an overall small effect size of 0.26 [0.10, 0.42] in the acquisition phase for participants in the DL group compared to other motor learning methods. In the retention phase, an overall medium effect size of 0.61 [0.30, 0.91] was observed for participants in the DL group compared to other motor learning methods.Discussion/Conclusion: Given the large amount of heterogeneity, limited number of studies, low sample sizes, low statistical power, possible publication bias, and high risk of bias in general, inferences about the effectiveness of DL would be premature. Even though DL shows potential to result in greater average improvements between pre- and post/retention test compared to non-variability-based motor learning methods, more high-quality research is needed before issuing such a statement. For robust comparisons on the relative effectiveness of DL to different variability-based motor learning methods, scarce and inconclusive evidence was found. (shrink)

Roughly speaking, classical statistical physics is the branch of theoretical physics that aims to account for the thermal behaviour of macroscopic bodies in terms of a classical mechanical model of their microscopic constituents, with the help of probabilistic assumptions. In the last century and a half, a fair number of approaches have been developed to meet this aim. This study of their foundations assesses their coherence and analyzes the motivations for their basic assumptions, and the interpretations of their central concepts. (...) The most outstanding foundational problems are the explanation of time-asymmetry in thermal behaviour, the relative autonomy of thermal phenomena from their microscopic underpinning, and the meaning of probability. A more or less historic survey is given of the work of Maxwell, Boltzmann and Gibbs in statistical physics, and the problems and objections to which their work gave rise. Next, we review some modern approaches to (i) equilibrium statistical mechanics, such as ergodic theory and the theory of the thermodynamic limit; and to (ii) non-equilibrium statistical mechanics as provided by Lanford's work on the Boltzmann equation, the so-called Bogolyubov-Born-Green-Kirkwood-Yvon approach, and stochastic approaches such as `coarse-graining' and the `open systems' approach. In all cases, we focus on the subtle interplay between probabilistic assumptions, dynamical assumptions, initial conditions and other ingredients used in these approaches. (shrink)

Introduction: Adolescence is the most critical life period for the development of eating disorder symptomatology. Although problems in identity functioning and emotion dysregulation have been proven important risk and maintaining factors of ED symptomatology, they have never been integrated in a longitudinal study.Methods: The present study is part of the Longitudinal Identity research in Adolescence -study and aimed to uncover the temporal interplay between identity functioning, cognitive emotion regulation, and ED symptomatology in adolescence. A total of 2,162 community adolescents participated (...) at three measurement points with 1-year intervals. They reported on identity functioning, cognitive emotion regulation, and ED symptomatology.Results: Cross-lagged paths could be fixed for boys and girls and showed bidirectional associations between both dimensions of identity functioning and both rumination and catastrophizing over time. Similarly, these maladaptive cognitive emotion regulation strategies were bidirectionally related to ED symptomatology over time. Finally, indirect pathways pointed to bidirectional associations between both dimensions of identity functioning and bulimia symptoms through rumination and catastrophizing. Only unidirectional associations emerged for drive for thinness and almost no cross-lagged associations were found with positive reappraisal.Conclusion: The present study demonstrates that identity confusion may contribute to the development of ED symptomatology in adolescence through cognitive emotion dysregulation. It also reveals that these ED symptoms hamper identity development through emotion dysregulation. These results stress the importance of targeting both identity functioning and cognitive emotion regulation in the prevention and intervention of ED symptoms. (shrink)

Twaalf studies over ethische en wijsgerige vraagstukken van de hoogleraar aan de Katholieke Hogeschool Tilburg (1919-1981).

Teachers’ responses to bullying incidents are key in bullying intervention at school. Scholars have suggested that teacher responses can predict student cognitions that are associated with their bullying behaviors. However, little is known about whether and how teacher responses affect these cognitions. Therefore, the current study investigated the effects of four immediate teacher responses on four bullying-related student cognitions, using an experimental vignette design. Additionally, it was examined whether students’ own participant role behaviors in actual bullying moderated these effects. The (...) investigated teacher responses were non-response, comforting the victim, correcting the bully, and a combination of comforting the victim and correcting the bully. The investigated student cognitions were perceived teacher attitudes toward bullying, perceived teacher moral disengagement regarding bullying, student willingness to report bullying to the teacher and student expectations regarding bullying participant role behaviors in the classroom. Fourth-to-sixth grade students read a vignette describing a hypothetical teacher’s response to a same bullying incident, following random assignment to one of eight conditions. Afterward, students completed questionnaires about their social cognitions and manipulation checks. ANOVA demonstrated that students perceived stronger teacher anti-bullying attitudes and less teacher moral disengagement when the hypothetical teacher displayed an active response. These effects were even stronger when the teacher corrected the bully compared to when only the victim was comforted. Further, students were more willing to report bullying when the teacher corrected the bully than when the teacher only comforted the victim. Finally, students expected less pro-bullying behaviors, more defending and less victimization in the vignette’s classroom following active teacher response compared to non-response. The effects of teacher responses on student cognitions were not moderated by students’ own participant roles in bullying. Taken together, these findings emphasize the importance of active teacher responses to bullying, and especially, responses that clearly show that bullying is not tolerated. Teachers are encouraged to be aware that students can deduce beliefs from teacher responses which can, in turn, affect bullying processes in the classroom. (shrink)

Psychiatric diagnoses such as Autism Spectrum Disorder (ASD) are primarily attributed on the basis of behavioral criteria. The aim of most of the biomedical research on ASD is to uncover the underlying mechanisms that lead to or even cause pathological behavior. However, in the philosophical and sociological literature, it has been suggested that autism is also to some extent a ‘social construct’ that cannot merely be reduced to its biological explanation. We show that a one-sided adherence to either a biological (...) or a social explanation leads to a moral dilemma, a Catch-22, for autistics and for those living with them. Such explanations close the space for self-identifying as autistic and at the same time being considered to be in good mental health. They foreclose the possibility of making sense of the lived experience of (and with) autistics. In this paper we argue that such lack of space for moral imagination inherently leads to scientific stalemate. We propose that one can only go beyond this stalemate by taking an ethical stance in theorizing, one that enables better intersubjective understanding. Only on such a view can behavior and biology be linked without either disconnecting them or reducing the one to the other. (shrink)

Purpose Underlying much recent development in data science and artificial intelligence (AI) is a dependence on the labour of precarious crowdworkers via platforms such as Amazon Mechanical Turk. These platforms have been widely critiqued for their exploitative labour relations, and over recent years, there have been various efforts by academic researchers to develop interventions aimed at improving labour conditions. The aim of this paper is to explore US-based crowdworkers’ views on two proposed interventions: a browser plugin that detects automated quality (...) control “Gold Question” (GQ) checks and a proposal for a crowdworker co-operative. Design/methodology/approach The authors interviewed 20 US-based crowdworkers and undertook a thematic analysis of collected data. Findings The findings indicate that US-based crowdworkers tend to have negative and mixed feelings about the GQ detector, but were more enthusiastic about the crowdworker co-operative. Originality/value Drawing on theories of precarious labour, this study suggests an explanation for the findings based on US-based workers’ objective and subjective experiences of precarity. The authors argue that for US-based crowdworkers “constructive” interventions such as a crowdworker co-operative have more potential to improve labour conditions. (shrink)

Embark on a visual journey of self-discovery. In Beaming, Marilyne Verschueren-the artist behind internet sensation @beamingdesign-presents 100 expansive visuals designed to stimulate your mind and awaken your intuition. Messages of hope, resilience, and joy are incorporated into radiant art, with each image offering the reader an opportunity for deep contemplation and introspection. Powerful imagery is paired with 25 guided exercises for mindfulness, journaling, and breathwork to deepen your interactive experience. Full of warmth and positive energy, Beaming is an exquisite (...) companion and a stirring call to follow your truth. (shrink)

This article starts from the observation of current changes in the nature of a globalizing public sphere for which older structural boundaries have lost much of their relevance. Though the public sphere has traditionally been a topic for social scientists, a redefinition in terms of the realm of publicly accessible meaning, and of struggles over socially and politically important meaning, necessitates a contribution from the humanities. In particular, linguistic pragmatics, providing tools for an analysis of the way in which explicit (...) and implicit forms of meaning interact in the process of generating meanings, is argued to be a useful instrument. The argument is supported with an analysis of the differences in meaning landscapes that emerge even in different-­language versions of the ‘same’ text, illustrating how dependent publicly available meaning is on basic pragmatic processes. The article concludes that a maturing science of language use is therefore needed to understand variations in the accounts of social and political reality that people in a globalizing public sphere live by. (shrink)

The present paper focuses on the heuristic selection process preceding the actual transitive reasoning process. A part of the difficulty of transitive reasoning lies in the selection of the relevant problem aspects. Two experiments are presented using the paradigm introduced by Markovits, Dumas, and Malfait (1995), in which children were asked to make “higher than” inferences about arrays of coloured blocks. In order to discriminate between genuine transitive inference and a simple strategy of relative position, Markovits et al. interspersed white (...) blocks with the coloured blocks, such that the relative position strategy leads to erroneous responses. However, we argue that the white blocks cause confusion due to their ambiguity, which interferes with the heuristic selection process. Two methodological adaptations were introduced, which are hypothesised to facilitate the selection process and improve transitive reasoning: (1) the white blocks were replaced by coloured blocks, and (2) a less abstract context was added to the experimental design. The colour manipulation leads to a clear increase in the use of a transitive strategy by 9-year-old children; 8-year-old children mainly used the relative position strategy. When adding a context story, 9-year-old children used the transitive strategy regardless of the colour of the interspersed blocks. The overall performance of 8-year-olds improved slightly. These results are interpreted as support for a dual-process model of transitive reasoning. (shrink)

This encyclopaedia of one of the major fields of language studies is a continuously updated source of state-of-the-art information for anyone interested in language use. The IPrA Handbook of Pragmatics provides easy access - for scholars with widely divergent backgrounds but with convergent interests in the use and functioning of language - to the different topics, traditions and methods which together make up the field of pragmatics, broadly conceived as the cognitive, social and cultural study of language and communication, i.e. (...) the science of language use. The Handbook of Pragmatics is a unique reference work for researchers, which has been expanded and updated continuously with annual installments since 1995. Also available as Online Resource: benjamins.com/online/hop/. (shrink)

First Published in 2000. Routledge is an imprint of Taylor & Francis, an informa company.

A substantial body of theoretical literature testifies to the evolutionary functions of emotions. Relatively little has been written about their developmental functions. This article discusses the developmental functions of emotions from the perspective of differential emotions theory (DET; Izard, 1977, 1991). According to DET, although all the emotions retain their adaptive and motivational functions across the lifespan, different sets of emotions may become relatively more prominent in the different stages of life as they serve stage-related developmental processes. In the first (...) section, we present a brief overview of relevant aspects of the theory. In the second section, we discuss how emotions play a central role in helping the individual achieve developmental milestones and tasks during four major periods of life: Infancy, toddler through preschool years, middle to late childhood, and adolescence. The underlying thesis of this article is that emotions play a central role in stimulating social cognitive attainments at each stage of development. (shrink)

Purpose: There is a widespread recognition that biomedical explanations offer benefits to those diagnosed with a mental disorder. Recent research points out that such explanations may nevertheless have stigmatizing effects. In this study, this ‘mixed blessing’ account of biomedical explanations is investigated in a case of philosophical interest: Tourette Syndrome. Method: We conducted a vignette survey with 221 participants in which we first assessed quantitative attributions of blame as well as the desire for social distance for behavior associated with Tourette (...) Syndrome. Results: In our study, it is confirmed that in the case of biomedical explanations, less blame is attributed than in the case of psychosocial explanations. When presented with a mixed explanation stressing an entanglement of biological and psychosocial factors this did not increase blame attribution. The desire for social distance is unaffected by the type of explanation but the participants’ free text feedback indicates this might obfuscate an underlying dilemma between stigma and blame revealed in recent research. Conclusion: There seems to be potential for blame reduction in explanations where biological and psychosocial factors are entangled. However, dynamic, ‘epigenetic’, explanations require further qualitative research to be performed as well as a philosophical framework to account for the ‘mixed blessings’ account. (shrink)

Socrates op de markt, Filosofie in bedrijf was first published in the Netherlands in 1997 and reprinted in 1999.1 It was translated into German and published in Germany in late 2000. The book covers the need today for Socratic dialogue, its methods, its uses and related concepts. These include elenchus (the refutation of what one thought one knew); maieutics (Socratic midwifery making latent knowledge conscious); the relationship of knowledge to feeling, virtue and the formation of personality; and the distinction between (...) three types of knowledge: scientific (episteme), professional (techne) and practical wisdom (phronesis). Our extracts — the first in English — set out Kessels’ arguments for using Socratic dialogue today, his account of its unique role in organisational learning, and a case history: a dialogue with a top management team in which elenchus plays a signal part as they seek to define a policy for handling redundancies. (shrink)

Ultimately this book provides a theory of intergenerational justice that is both intellectually robust and practical with wide applicability to law and policy.