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首页> 外文期刊>The European Journal of Neuroscience >Expectancy and affective response to challenging balance practice conditions in individuals with Parkinson's disease
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Expectancy and affective response to challenging balance practice conditions in individuals with Parkinson's disease

机译：对帕金森病的个体挑战性平衡实践条件的预期和情感反应

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摘要

Psychological states can influence motor performance and learning. In Parkinson's disease (PD), placebo effects or expectancies for pharmacological treatment benefits are not uncommon, but little is known about whether self-efficacy, beliefs about personal performance capabilities, may play a role in this population. To address this question, we investigated whether experimental manipulations designed to enhance self-efficacy would benefit motor performance and learning in PD. A motor learning paradigm was utilized to determine the short-term (i.e., practice) and longer-term (i.e., retention) impact of self-efficacy enhancement when 44 individuals with PD (Hoehn and Yahr stage I-III) acquired a challenging balance skill. Using stratified randomization by Hoehn and Yahr stage, participants were assigned to a control group or one of two investigational groups: (a) an expectancy-relevant statement that encouraged an incremental mindset in which the balance skill, though initially challenging, was acquirable with practice (incremental theory group, IT), and (b) the expectancy-relevant statement in combination with a criterion for successful performance (incremental theory plus success criteria group, IT + SC). All groups improved their balance performance, but contrary to expectations, investigational groups did not outperform the control group at practice or retention. Unexpectedly, the IT + SC group reported greater nervousness than the control and IT groups, suggesting that the employed success criteria may have induced performance-related anxiety. Regression analyses revealed that self-efficacy increase from initial practice predicted performance at the end of practice and at retention. These findings highlight the potential contribution of psychological factors on motor function and rehabilitation in individuals with PD.
机译：心理状态会影响运动表现和学习。在帕金森病（PD）患者中，安慰剂效应或预期的药物治疗益处并不少见，但关于自我效能、个人表现能力的信念是否在这一人群中发挥作用，我们知之甚少。为了解决这个问题，我们调查了旨在提高自我效能感的实验操作是否有利于PD患者的运动表现和学习。当44名PD患者（Hoehn和Yahr i-III期）获得具有挑战性的平衡技能时，利用运动学习范式确定自我效能增强的短期（即练习）和长期（即保持）影响。通过Hoehn和Yahr阶段的分层随机分组，参与者被分配到一个控制组或两个研究组中的一个：（a）一个与预期相关的陈述，鼓励一种渐进的心态，在这种心态中，平衡技能虽然最初具有挑战性，但可以通过实践获得（渐进理论组，IT），（b）与预期相关的声明，并结合成功绩效的标准（增量理论+成功标准组，IT+SC）。所有组的平衡表现都有所改善，但与预期相反，研究组在练习或保持方面的表现并不优于对照组。出乎意料的是，IT+SC组比对照组和IT组更紧张，这表明所采用的成功标准可能诱发了绩效相关焦虑。回归分析显示，自我效能感从最初的练习开始增加，可以预测练习结束时和保持时的表现。这些发现强调了心理因素对帕金森病患者运动功能和康复的潜在贡献。

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