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Charles H. Shea Wayne L. Shebilske Robert M. Kohl Mark A. Guadagnoli 《Journal of motor behavior》2013,45(1):51-62
Three experiments investigated the influence of an after-contraction phenomenon on the performance and learning of a dynamic force-production task. The after-contraction effect refers to an involuntary potentiation (induced by a sustained pre-contraction) that is thought to summate with voluntary motor commands to bias subsequent responding. The precontraction involved a brief (20 s) static contraction. The subsequent influence of the precontraction on a dynamic force-production task was assessed. Experiments 1 and 2 were aimed at demonstrating the direct impact of the precontraction intensity on the magnitude and decay of the after-contraction effect. The results indicated that as the intensity of the precontraction increased, the magnitude of the induced bias increased. In Experiment 3, the indirect influence on subsequent retention of varying the precontraction intensity during acquisition was investigated. The results indicated that the performance of subjects experiencing varying precontraction intensities during acquisition was inferior to that of subjects experiencing a constant precontraction intensity, but the performance of the varied precontraction intensities group was superior on the test of retention. It is noted that the paradoxical reversal from acquisition to retention is similar to that found in contextual interference experiments and may arise from similar mechanisms. 相似文献
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J. Malte Runge Jonas W. B. Lang Athanasios Chasiotis Jan Hofer 《Journal of personality assessment》2013,95(4):414-424
Summary: The possible relationship between masculinity and creativity in college women was investigated through a battery of masculinity-femininity scales that tapped both manifest and latent masculinity, factorially derived clusters, and an ipsative measure. Two samples (n = 45 each) of women who had scored above the 75th percentile and below the 25th percentile respectively on two measures of creativity were used. High creative subjects scored higher on activity and described themselves as more masculine; indications are that they possess a broader, less stereotyped sex-role identity. 相似文献
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Andre Dessaulles Susan M. Johnson Wayne H. Denton 《The American journal of family therapy》2013,41(5):345-353
Emotion-focused therapy (EFT) for couples was compared to pharmacotherapy in the treatment of major depressive disorder. Eighteen distressed couples in which the female partner met diagnostic criteria for major depressive disorder were randomly assigned to 16 weekly sessions of emotion-focused therapy or pharmacotherapy with desipramine, trimipramine, or trazadone. Twelve couples completed the study. Both interventions were equally effective in symptom reduction. There was some evidence that females receiving EFT made greater improvement after the conclusion of treatment than those receiving pharmacotherapy. The results suggest EFT might be useful in the treatment of comorbid major depressive disorder and relational distress. 相似文献
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The present study extended the effort–reward imbalance (ERI) model (Siegrist, 1996b), first by differentiating between separate reward components, second by including intrinsic reward, and third by additionally predicting a non-health outcome (i.e., turnover intention) in a military context. Regression analyses of 789 reservists found financial and esteem reward to moderate the impact of extrinsic effort on depressive symptoms, whereas only financial reward moderated the effort turnover intentions relationship. Results supported the usefulness of the extended ERI model in the military context. Relevant areas for future research on the military effort–reward perspective are discussed. 相似文献
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Todd B. Kashdan Leah M. Adams Evan M. Kleiman William E. Pelham Alan R. Lang 《Journal of abnormal child psychology》2013,41(6):919-927
Research on whether parents of children with externalizing disorders are at elevated risk for alcohol problems is equivocal. To reduce this ambiguity, we examined how individual differences in stress reactivity might moderate the drinking behavior of such parents. Parents (119 mothers, 44 fathers) of ADHD sons interacted with different child confederates during each of two counter-balanced sessions. In one, the confederate portrayed a friendly, cooperative, “normal” boy; in the other, the confederate portrayed a “deviant” boy who exhibited behavior characteristic of externalizing disorders. Following each interaction, parents were given an opportunity for ad lib consumption of alcohol while anticipating a second interaction. Latent class analysis identified three subgroups of parents using distress scores and alcohol consumption: minimal stress reactivity; reacts to child deviance with increased distress, but not increased drinking; marked stress-induced drinking. Decisions about the nature and proper treatment of parents raising children with ADHD may be compromised by failure to attend to individual differences in stress reactivity and inclinations to use drinking to cope. 相似文献