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91.
92.
Pedro Bezerra Shi Zhou Zachary Crowley Allan Davie Robert Baglin 《Journal of motor behavior》2013,45(5):413-421
It is known that electromyostimulation (EMS) alone or superimposed over voluntary contraction (EV) can effectively improve muscle strength. However, the effect of this type of training on the ability to control force production at submaximal levels is unknown. The authors examined the effects of EV training on steadiness in force production of knee extensors and flexors in older adults. Forty participants, including 20 men and 20 women, 60–77 years of age, were randomly allocated into a control group (CG) and an electromyostimulation superimposed over voluntary contraction (EVG) group. The EVG performed 30 bilateral isometric knee extension and flexion contractions per session, 3 training sessions per week, for 6 weeks. The variations in force production, expressed in absolute (standard deviation [SD]) and relative (coefficient of variation [CV]) terms, were assessed in isometric contractions at 5%, 15% and 25% maximal voluntary contraction (MVC) levels. Results indicated that MVC increased in knee extension and flexion in EVG (p < .05) after the training; steadiness CV also improved at 15% MVC in knee flexion (p < .05) but no significant changes were found in knee extension and steadiness SD. The training-induced changes in MVC were not correlated to steadiness CV that might indicate different mechanisms underlying these adaptations. 相似文献
94.
Carina H. Dick Susan L. Renes Allan Morotti Anthony T. Strange 《The American journal of family therapy》2013,41(3):232-244
This article reviews the existing literature on heterosexual intimate relationships in which the female partner has an eating disorder. These couples often have trouble in a number of areas, including communication, sexual functioning, relational boundaries, and emotional health. Not only do these problems contribute to lower rates of relational satisfaction but they also affect a woman's chances for recovery. An understanding of this literature can inform family therapy practice. Recommendations are offered for those who provide counseling to these couples. 相似文献
95.
Patricia Allan 《Psychoanalytic Psychotherapy》2013,27(1):111-113
This paper explores the meaning of the pregnancy of the therapist as a challenge to the maintenance of the setting for therapy. The patient I shall describe was born ‘black’ in a ‘white’ family and was thus a challenge to her father's sense of paternity and her parents as a couple. She was the visual evidence of an infidelity. The problem had been denied in various ways, going as far as the attempt to deny her very existence. The therapist's pregnancy signified a betrayal of the ideal of a stable setting which was compounded by an earlier absence through illness. This ‘breaking of rules or promises' was then the setting for a re-working of the patient's story. Setting, it is argued, can helpfully be seen as the mental space created by the partnership within the therapist between maternal and paternal relating to the ‘baby’ of the therapy. This enables a sense of negotiation and relationship in the creation of setting, which can include disruptions and other babies. At the same time the therapy had to work with a fundamental issue of illegitimacy or lack of belonging and the therapist's response to this. The ‘rules' of setting are a means to ensure a place to belong or attach to, but this work emphasized ‘setting’ and belonging as issues of relationship supported and enabled by our rules of engagement, but not reducible to them. 相似文献
96.
Allan N. Schore Ph.D. 《Psychoanalytic Inquiry》2013,33(3):433-484
In 1971, Heinz Kohut, trained in neurology and then psychoanalysis, published The Analysis of the Self, a detailed exposition of the central role of the self in human existence. This classic volume of both twentieth century psychoanalysis and psychology was more than a collection of various clinical observations—rather it represented an overarching integrated theory of the development, structuralization, psychopathogenesis, and psychotherapy of disorders of the self. Although some of these ideas were elaborations of previous psychoanalytic principles, a large number of his concepts, including an emphasis on self rather than ego, signified an innovative departure from mainstream psychoanalysis and yet a truly creative addition to Freud's theory. 相似文献
97.
We examine the relationship between maximizing (i.e., seeking the best) versus satisficing (i.e., seeking the good enough) tendencies and forecasting ability in a real‐world prediction task: forecasting the outcomes of the 2010 FIFA World Cup. In Studies 1 and 2, participants gave probabilistic forecasts for the outcomes of the tournament and completed a measure of maximizing tendencies. We found that although maximizers expected themselves to outperform others much more than satisficers, they actually forecasted more poorly. Hence, on net, they were more overconfident about their relative performance. Decompositional analyses of overall accuracy revealed that differences in forecasting abilities were primarily driven by maximizers' tendency to give more noisy estimates. In Study 3, participants played a betting task where they could choose between safe and uncertain gambles linked to World Cup outcomes. Again, maximizers did more poorly and earned less, because of greater noise in their choice‐based responses. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
98.
Peter Tikuisis Ph.D. Michael Ponikvar Allan A. Keefe Sharon M. Abel 《Military psychology》2013,25(2):186-199
This study was conducted to determine the impact of noise on target detection, identification, and marksmanship (TDI&M) and to examine the effectiveness of a monetary reward to improve performance. Twenty active duty male soldiers participated in a non-reward and reward trial, each comprising three time blocks of two alternating 20-minute sessions, one with 87-dBA battlefield noise and the other relatively quiet. Each session involved 15 minutes of TDI&M testing followed by 5 minutes of rest. Neither noise, time on task, nor reward caused any noteworthy changes in TDI&M performance, except for foe target engagement time (ET). It appears that subjects purposely increased ET over the duration of the task to improve their hit accuracy but did not succeed in doing so. The monetary incentive to improve performance was also ineffective, because the subjects applied a similar “best” effort during the no-reward trial prior to this manipulation. 相似文献
99.
The study tested the hypothesis that negative academic emotions moderate the relationship between self-efficacy and achievement. The moderating effect of four negative academic emotions (anger, anxiety, shame, and hopelessness) was investigated in 1345 university students of trigonometry, who answered the Academic Emotions Questionnaire-Math (Pekrun et al. Educational Psychology Review 18:315–341, 2005) and a self-efficacy scale (Pintrich et al. Journal of Educational Psychology 82:33–40, 1991). Results of the moderation analysis indicated the higher self-efficacy was related to higher grades among students who reported lower levels of negative academic emotions. Self-efficacy had minimal or no effect on grades among students who reported higher levels of negative academic emotions. The results are discussed in terms of how negative emotions may indicate negative appraisals of the value of the task and/or task outcomes, and thus weaken the positive links between cognitive and motivational variables and learning. 相似文献
100.
Amy J. Mikolajewski Nicholas P. Allan Sara A. Hart Christopher J. Lonigan Jeanette Taylor 《Journal of abnormal child psychology》2013,41(3):411-423
The co-occurrence of internalizing and externalizing disorders suggests that they may have common underlying vulnerability factors. Research has shown that negative affect is moderately positively correlated with both internalizing and externalizing disorders in children. The present study is the first to provide an examination of negative affect in relation to a wide spectrum of childhood internalizing and externalizing problems using a biometric model. This study extends prior findings of more narrowly focused associations by using a factor approach including multiple disorders. The sample for this study included families of 691 same-sex 7- to 13-year old twin pairs. A multifactorial independent pathway model was used to examine the genetic and environmental influences underlying the covariation of parent-reported negative affect, internalizing symptoms, and externalizing symptoms. Results of the current study suggest that negative affect shares genetic and environmental influences with both internalizing and externalizing disorders in childhood. These common influences may partially explain their comorbidity. Understanding that negative affect is at least one contributor to the covariation among these disorders may highlight avenues for early risk assessment, intervention, and perhaps prevention. 相似文献