Association between individual differences in gait motor imagery and visuo-spatial working memory after stroke

IF 2.5 4区医学 Q3 NEUROSCIENCES

Neuroscience Letters Pub Date : 2025-02-17 DOI:10.1016/j.neulet.2025.138167

Kohei Kotegawa , Naoki Kuroda , Junya Sakata , Ren Fujii , Wataru Teramoto

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引用次数: 0

Abstract

Motor imagery is a mental process in which an individual internally simulates movements without actual motor execution. Gait motor imagery is associated with visuospatial working memory (VSWM) among young adults. This study investigates how individual differences in gait motor imagery ability among stroke patients are related to VSWM. Gait motor imagery of 12 S patients with right hemisphere damage and 12 healthy older adults were evaluated and compared in this study. Gait motor imagery ability was evaluated by comparing actual and mental walking times while manipulating path width, whereas VSWM ability was evaluated using the Corsi Block-Tapping task. The results revealed that VSWM ability could predict the accuracy of gait motor imagery for both stroke patients and healthy controls; those with higher VSWM ability exhibited more overestimation of mental walking time over actual walking time. Additionally, based on the results of dividing stroke participants into two groups depending on whether they had right prefrontal cortex (PFC) damage, stroke patients with right PFC damage had decreased VSWM, and underestimated mental walking over actual walking for all path widths compared to those with non-right PFC damage. These results suggest that gait motor imagery accuracy is associated with individual differences in VSWM ability, particularly in patients affected by right PFC damage.

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脑卒中后步态运动意象与视觉空间工作记忆个体差异的关系

运动想象是一种心理过程，在这种过程中，个体在没有实际运动执行的情况下，内在地模拟运动。步态运动意象与年轻人的视觉空间工作记忆（VSWM）有关。本研究探讨脑卒中患者步态运动想象能力的个体差异与VSWM的关系。本研究对12例右半球损伤的S患者和12例健康老年人的步态运动图像进行了评估和比较。通过比较实际步行时间和心理步行时间来评估步态运动想象能力，同时操纵路径宽度，而通过Corsi Block-Tapping任务来评估VSWM能力。结果表明，VSWM能力可以预测脑卒中患者和健康对照者步态运动图像的准确性；VSWM能力较高的人对心理步行时间的高估程度高于实际步行时间。此外，根据中风参与者是否有右前额叶皮层损伤将他们分为两组的结果，与没有右前额叶皮层损伤的中风患者相比，右前额叶皮层损伤的中风患者的VSWM减少，并且在所有路径宽度上低估了精神行走而不是实际行走。这些结果表明，步态运动图像的准确性与VSWM能力的个体差异有关，特别是在受右侧PFC损伤影响的患者中。

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

Neuroscience Letters 医学-神经科学

CiteScore

5.20

自引率

0.00%

发文量

408

审稿时长

50 days

期刊介绍： Neuroscience Letters is devoted to the rapid publication of short, high-quality papers of interest to the broad community of neuroscientists. Only papers which will make a significant addition to the literature in the field will be published. Papers in all areas of neuroscience - molecular, cellular, developmental, systems, behavioral and cognitive, as well as computational - will be considered for publication. Submission of laboratory investigations that shed light on disease mechanisms is encouraged. Special Issues, edited by Guest Editors to cover new and rapidly-moving areas, will include invited mini-reviews. Occasional mini-reviews in especially timely areas will be considered for publication, without invitation, outside of Special Issues; these un-solicited mini-reviews can be submitted without invitation but must be of very high quality. Clinical studies will also be published if they provide new information about organization or actions of the nervous system, or provide new insights into the neurobiology of disease. NSL does not publish case reports.