Motor imagery vividness and symptom severity in Parkinson's disease

IF 2 4区 心理学 Q2 PSYCHOLOGY
Megan Rose Readman, Trevor J. Crawford, Sally A. Linkenauger, Judith Bek, Ellen Poliakoff
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引用次数: 3

Abstract

Motor imagery (MI), the mental simulation of movement in the absence of overt motor output, has demonstrated potential as a technique to support rehabilitation of movement in neurological conditions such as Parkinson's disease (PD). Existing evidence suggests that MI is largely preserved in PD, but previous studies have typically examined global measures of MI and have not considered the potential impact of individual differences in symptom presentation on MI. The present study investigated the influence of severity of overall motor symptoms, bradykinesia and tremor on MI vividness scores in 44 individuals with mild to moderate idiopathic PD. Linear mixed effects modelling revealed that imagery modality and the severity of left side bradykinesia significantly influenced MI vividness ratings. Consistent with previous findings, participants rated visual motor imagery (VMI) to be more vivid than kinesthetic motor imagery (KMI). Greater severity of left side bradykinesia (but not right side bradykinesia) predicted increased vividness of KMI, while tremor severity and overall motor symptom severity did not predict vividness of MI. The specificity of the effect of bradykinesia to the left side may reflect greater premorbid vividness for the dominant (right) side or increased attention to more effortful movements on the left side of the body resulting in more vivid motor imagery.

帕金森病的运动意象生动度与症状严重程度
运动意象(MI)是在没有明显运动输出的情况下对运动的心理模拟,已被证明有潜力作为一种技术来支持帕金森病(PD)等神经系统疾病的运动康复。现有证据表明,心肌梗死在PD中很大程度上是保留的,但之前的研究通常是检查心肌梗死的整体测量,并没有考虑个体症状表现差异对心肌梗死的潜在影响。本研究调查了44例轻度至中度特发性PD患者的整体运动症状的严重程度、运动迟缓和震颤对心肌梗死生动度评分的影响。线性混合效应模型显示,想象方式和左侧运动迟缓的严重程度显著影响MI生动度评分。与之前的研究结果一致,参与者认为视觉运动意象(VMI)比动觉运动意象(KMI)更生动。更严重的左侧运动迟缓(而不是右侧运动迟缓)预示着KMI的生动度增加,而震颤的严重程度和整体运动症状的严重程度并不能预测MI的生动度。运动迟缓对左侧的影响的特异性可能反映了优势侧(右侧)发病前更生动,或者对左侧身体更费力的运动的关注增加,从而导致更生动的运动意象。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Neuropsychology
Journal of Neuropsychology 医学-心理学
CiteScore
4.50
自引率
4.50%
发文量
34
审稿时长
>12 weeks
期刊介绍: The Journal of Neuropsychology publishes original contributions to scientific knowledge in neuropsychology including: • clinical and research studies with neurological, psychiatric and psychological patient populations in all age groups • behavioural or pharmacological treatment regimes • cognitive experimentation and neuroimaging • multidisciplinary approach embracing areas such as developmental psychology, neurology, psychiatry, physiology, endocrinology, pharmacology and imaging science The following types of paper are invited: • papers reporting original empirical investigations • theoretical papers; provided that these are sufficiently related to empirical data • review articles, which need not be exhaustive, but which should give an interpretation of the state of research in a given field and, where appropriate, identify its clinical implications • brief reports and comments • case reports • fast-track papers (included in the issue following acceptation) reaction and rebuttals (short reactions to publications in JNP followed by an invited rebuttal of the original authors) • special issues.
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