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The present study investigates the influence of preparation on inhibitory effects in cued task switching. In three experiments, we assessed n − 2 repetition costs as marker of inhibition of the just executed and now irrelevant task by comparing performance in task sequences such as ABA (i.e., n − 2 repetitions, with A, B and C standing for different tasks) to task sequences such as CBA (i.e., n − 2 switches). Specifically, we varied the cue–target interval (CTI) to examine cue-based preparation effects. In addition, we manipulated cue type (i.e., abstract, verbal, and direct cues) across the three experiments. We obtained significant reductions of n − 2 repetition costs with prolonged CTI when using abstract cues (i.e., coloured frames) and task names (i.e., digit), but not when using the task-specific stimulus–response mapping as cue for the upcoming task. These data suggest that cue-based preparation is not a uniform process but depends on the information provided by the cue. 相似文献
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Miriam Schoenfield 《No?s (Detroit, Mich.)》2014,48(2):193-218
In this paper, I begin by defending permissivism: the claim that, sometimes, there is more than one way to rationally respond to a given body of evidence. Then I argue that, if we accept permissivism, certain worries that arise as a result of learning that our beliefs were caused by the communities we grew up in, the schools we went to, or other irrelevant influences dissipate. The basic strategy is as follows: First, I try to pinpoint what makes irrelevant influences worrying and I come up with two candidate principles. I then argue that one principle should be rejected because it is inconsistent with permissivism. The principle we should accept implies that it is sometimes rational to maintain our beliefs, even upon learning that they were caused by irrelevant influences. 相似文献
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David Winter Siobhan Bradshaw Frances Bunn David Wellsted 《Counselling and Psychotherapy Research》2014,14(1):64-79
Scope of review: The paper reports a meta‐synthesis of 13 qualitative studies of counselling and psychotherapy with people at risk of suicide. Publication time span: The studies considered were reported between 1997 and 2006. Publication origin: Seven studies were conducted in the UK, four in the USA, one in Canada, and one in Sweden. Findings: Themes in clients' and therapists' accounts of the process of counselling or psychotherapy were therapist qualities; therapy components; theoretical framework; and therapy techniques. Themes in their accounts of the effectiveness of counselling and psychotherapy were decrease in self‐destructive behaviour, and quality of life. Themes in clients' views of barriers to effective counselling or psychotherapy were therapist characteristics; therapy components; secrecy; and transferring to the real‐life situation. Secrecy was also identified as a barrier by therapists, as were responsibilities of the profession; training; and the nature of suicide and self‐harm. Facilitators of successful counselling and psychotherapy as identified by clients were responsibility; support; and teaching therapy skills to family members, the latter also being identified by therapists. 相似文献
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Predicting Bystander Behavior to Prevent Sexual Assault on College Campuses: The Role of Self-Efficacy and Intent
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Sarah McMahon N. Andrew Peterson Samantha C. Winter Jane E. Palmer Judy L. Postmus Ruth Anne Koenick 《American journal of community psychology》2015,56(1-2):46-56
Bystander intervention has been increasingly applied to prevent sexual violence on college campuses. Its underlying theory assumes unidirectional relationships between variables, predicting that bystander behaviors (i.e., actions taken to intervene in sexual violence situations) will be influenced by bystander intentions (BI; i.e., likelihood to intervene in the future), which in turn will be affected by bystander efficacy (BE; i.e., confidence to intervene). One question for theory is whether a reciprocal relationship exists between BI and BE. We used structural equation modeling (SEM) with longitudinal data to test unidirectional and reciprocal causal relations between BI and BE. Participants (n = 1390) were students at a northeastern US university. Four models were examined using SEM: (1) a baseline model with autoregressive paths; (2) a model with autoregressive effects and BI predicting future BE; (3) a model with autoregressive effects and BE predicting future BI; and, (4) a fully cross‐lagged model. Results indicated that reciprocal causality was found to occur between BI and BE. In addition, a final model demonstrated indirect effects of a bystander intervention program on bystander behaviors through both BI and BE at different time points. Implications for theory and practice are described, and directions for future research discussed. 相似文献
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Miriam Rosenberg‐Lee Sarit Ashkenazi Tianwen Chen Christina B. Young David C. Geary Vinod Menon 《Developmental science》2015,18(3):351-372
Developmental dyscalculia (DD) is marked by specific deficits in processing numerical and mathematical information despite normal intelligence (IQ) and reading ability. We examined how brain circuits used by young children with DD to solve simple addition and subtraction problems differ from those used by typically developing (TD) children who were matched on age, IQ, reading ability, and working memory. Children with DD were slower and less accurate during problem solving than TD children, and were especially impaired on their ability to solve subtraction problems. Children with DD showed significantly greater activity in multiple parietal, occipito‐temporal and prefrontal cortex regions while solving addition and subtraction problems. Despite poorer performance during subtraction, children with DD showed greater activity in multiple intra‐parietal sulcus (IPS) and superior parietal lobule subdivisions in the dorsal posterior parietal cortex as well as fusiform gyrus in the ventral occipito‐temporal cortex. Critically, effective connectivity analyses revealed hyper‐connectivity, rather than reduced connectivity, between the IPS and multiple brain systems including the lateral fronto‐parietal and default mode networks in children with DD during both addition and subtraction. These findings suggest the IPS and its functional circuits are a major locus of dysfunction during both addition and subtraction problem solving in DD, and that inappropriate task modulation and hyper‐connectivity, rather than under‐engagement and under‐connectivity, are the neural mechanisms underlying problem solving difficulties in children with DD. We discuss our findings in the broader context of multiple levels of analysis and performance issues inherent in neuroimaging studies of typical and atypical development. 相似文献
200.
Miriam Schoenfield 《Philosophical Issues》2015,25(1):252-272
Internalists face the following challenge: what is it about an agent's internal states that explains why only these states can play whatever role the internalist thinks these states are playing? Internalists have frequently appealed to a special kind of epistemic access that we have to these states. But such claims have been challenged on both empirical and philosophical grounds. I will argue that internalists needn't appeal to any kind of privileged access claims. Rather, internalist conditions are important because of the way in which we expect them to act as causal mediators between states of the world, on the one hand, and our beliefs and actions on the other. 相似文献