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171.
Self-leadership and volition are conceptually similar concepts. Both propose self-influence strategies that aim to improve the motivation and self-direction necessary to perform well. The present study assesses whether self-leadership strategies maintain construct-specific variance when compared with the similar strategies of volition. Results from a questionnaire study (N=320) indicate that self-leadership and volitional strategies are distinguishable and only moderately (r = .33) correlated. Self-leadership, therefore, supplements volition during goal attainment. Findings are discussed in light of the Rubicon model of action phases. 相似文献
172.
We investigated adult age-differences in timing control of fast vs. slow repetitive movements using a dual-task approach. Twenty-two young (M = 24.23 yr) and 22 older adults (M = 66.64 yr) performed three cognitive tasks differing in working memory load and response production demands and they tapped series of 550-ms or 2100-ms target intervals. Single-task timing was comparable in both groups. Dual-task timing was characterized by shortening of produced intervals and increases in drift and variability. Dual-task costs for both cognitive and timing performances were pronounced at slower tapping tempos, an effect exacerbated in older adults. Our findings implicate attention and working memory processes as critical components of slow movement timing and sources of specific challenges thereof for older adults. 相似文献
173.
Prof. Dr. Dr. Wolfgang Schneider Daniela Becker Ralf Dohrenbusch Harald J. Freyberger Harald Gündel Peter Henningsen Sonja Kowalewsky Volker Köllner 《Psychotherapeut》2010,55(5):380-388
The article presents an operationalized and manualized approach for the assessment of the capability of performance. This manual has been conceptualized and tested empirically by a multicentric and interdisciplinary workgroup. It is basically oriented to the “International Classification of Functioning” (ICF; WHO), which is well accepted for assessing the course of chronic diseases and the consequences for the individual. It is especially widely applied in the context of rehabilitation. The different diagnostic levels of the manual and their operationalization are outlined. Furthermore, the first results concerning reliability, content validity, applicability and practicability are described and questions on the areas of application of the instrument are discussed. 相似文献
174.
Labudda K Brand M Mertens M Ollech I Markowitsch HJ Woermann FG 《Behavioural neurology》2010,23(3):131-143
We aimed to study whether previously described impairment in decision making under risky conditions in patients with Parkinson's disease (PD) is affected by deficits in using information about potential incentives or by processing feedback (in terms of fictitious gains and losses following each decision). Additionally, we studied whether the neural correlates of using explicit information in decision making under risk differ between PD patients and healthy subjects. We investigated ten cognitively intact PD patients and twelve healthy subjects with the Game of Dice Task (GDT) to assess risky decision making, and with an fMRI paradigm to analyse the neural correlates of information integration in the deliberative decision phase. Behaviourally, PD patients showed selective impairment in the GDT but not on the fMRI task that did not include a feedback component. Healthy subjects exhibited lateral prefrontal, anterior cingulate and parietal activations when integrating decision-relevant information. Despite similar behavioural patterns on the fMRI task, patients exhibited reduced parietal activation. Behavioural results suggest that PD patients' deficits in risky decision making are dominated by impaired feedback utilization not compensable by intact cognitive functions. Our fMRI results suggest similarities but also differences in neural correlates when using explicit information for the decision process, potentially indicating different strategy application even if the interfering feedback component is excluded. 相似文献
175.
Currently, two frameworks of causal reasoning compete: Whereas dependency theories focus on dependencies between causes and effects, dispositional theories model causation as an interaction between agents and patients endowed with intrinsic dispositions. One important finding providing a bridge between these two frameworks is that failures of causes to generate their effects tend to be differentially attributed to agents and patients regardless of their location on either the cause or the effect side. To model different types of error attribution, we augmented a causal Bayes net model with separate error sources for causes and effects. In several experiments, we tested this new model using the size of Markov violations as the empirical indicator of differential assumptions about the sources of error. As predicted by the model, the size of Markov violations was influenced by the location of the agents and was moderated by the causal structure and the type of causal variables. 相似文献
176.
Loris Vezzali Miles Hewstone Dora Capozza Dino Giovannini Ralf Wölfer 《European Review of Social Psychology》2013,24(1):314-389
Research in social psychology has provided impressive evidence that intergroup contact reduces prejudice. However, to the extent that strategies based on direct contact are sometimes difficult to implement, scholars have more recently focused on indirect contact. An effective form of indirect contact is extended contact. According to the extended contact hypothesis, simply knowing that ingroup members have outgroup friends (extended contact), or observing these friendships vicariously (vicarious contact), can improve intergroup relations. Since its initial formulation a large body of studies has supported the validity of the extended contact hypothesis. In reviewing the available literature on two forms of indirect contact (extended and vicarious), we outline a model that identifies their antecedents and consequences, spanning from cognitive to affective to behavioural outcomes. In addition to identifying the main moderators of indirect contact, we also distinguish two different routes, one cognitive and one affective, that underlie what processes mediate their effects. Finally, we indicate some possible avenues for future research and we consider how direct and indirect contact strategies can be used in combination to improve intergroup relations. 相似文献
177.
Abstract Stress has been a ubiquitous concept in health research. We compare stress theories with the operationalization of stress in health research. Although scientific investigation is ideally based on theoretical principles, stress research is seen as often atheoretical or misapplying theories. Major conceptualizations of stress are considered and prominent research avenues in health psychology are analyzed as to the extent they mirror, diverge from, or inform stress conceptualizations. A central conclusion of the paper is that perceived and objective stressors are not only both valid construels of stress, but that they operate differently on psychological and physiological systems. 相似文献
178.
Adolescents with high mental toughness adapt better to perceived stress: A longitudinal study with Swiss vocational students 总被引:1,自引:0,他引:1
Markus Gerber Serge Brand Anne Karina Feldmeth Christin Lang Catherine Elliot Edith Holsboer-Trachsler Uwe Pühse 《Personality and individual differences》2013
A mindset of mental toughness enables an individual to cope successfully with the pressures and demands of life. This 10-month study prospectively examined the association between mental toughness and stress resilience in 865 students (M = 17.86 years, 42.7% girls) from two vocational schools. Within each school, separate cluster analyses identified groups with different profiles of risk (assessed with perceived stress) and adaptation (operationalized with depressive symptoms and life satisfaction). Four clusters emerged characterizing students with well-adjusted (low risk, good adaptation), maladjusted (elevated risk, bad adaptation), deteriorated (low initial risk, worsening adaptation) and resilient profiles (elevated initial risk, improving adaptation). The latter two clusters reported similar levels of mental toughness at baseline, but resilient adolescents scored significantly higher on mental toughness at follow-up. After controlling for possible confounds, baseline toughness levels predicted depressive symptoms and life satisfaction over time. This study shows that mental toughness operates as a stress resilience resource. Mental toughness is, therefore a topic of interest for health specialists working with adolescent populations. 相似文献
179.
180.
The neural correlates of reward-related trial-and-error learning: an fMRI study with a probabilistic learning task
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Koch K Schachtzabel C Wagner G Reichenbach JR Sauer H Schlösser R 《Learning & memory (Cold Spring Harbor, N.Y.)》2008,15(10):728-732
This fMRI study investigated the neural correlates of reward-related trial-and-error learning in association with changing degrees of stimulus-outcome predictabilities. We found that decreasing predictability was associated with increasing activation in a frontoparietal network. Only maximum predictability was associated with signal decreases across the learning process. The receipt of monetary reward revealed activation in the striatum and associated frontoparietal regions. Present data indicate that during reward-related learning, high uncertainty forces areas relevant for cognitive control to remain activated. In contrast, learning on the basis of predictable stimulus-outcome associations enables the brain to reduce resources in association with the processes of prediction. 相似文献