Association of executive function capacity with gait motor imagery ability and PFC activity: An fNIRS study.
Association of executive function capacity with gait motor imagery ability and PFC activity: An fNIRS study.
复制标题
执行功能能力与步态运动想象能力和 PFC 活动的关联：一项 fNIRS 研究。
DOI：
10.1016/j.neulet.2021.136350
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发表时间：
2022
影响因子：
2.5
通讯作者：
W. (2022).
中科院分区：
文献类型：
--
作者：
Kotegawa;K. & Teramoto;W. (2022).
步态运动表象能力存在个体差异。然而，人们对其潜在的神经机制知之甚少。我们之前进行了一项使用功能性近红外光谱(FNIRS)的研究，研究表明，在更大程度上高估心理行走时间的参与者，右侧前额叶皮质(PFC)表现出更大的激活。PFC与执行功能(EF)有关，包括工作记忆(WM)。因此，这项研究调查了EF容量的个体差异是否与步态运动想象能力和PFC活动有关。30名志愿者参与了这项研究，平均年龄：21.7岁±21.8岁。采用B部分连线测验(TMT-B)对受试者进行EF测评。我们使用fNIRS测量了心理行走过程中步态运动想象和PFC活动的准确性，同时通过改变路径宽度来改变任务难度。结果表明，随着TMT-B次数的增加，心理步行时间对实际步行时间和右侧PFC活动的高估增加。这些结果表明，包括WM在内的EF容量与步态运动表象能力和右侧PFC活动密切相关。包括右侧PFC的大脑网络可能在步态运动想象的维持和操作中发挥重要作用。
Individual differences exist in gait motor imagery ability. However, little is known about the underlying neural mechanisms. We previously conducted a study using functional near-infrared spectroscopy (fNIRS), which showed that participants who overestimated mental walking times to a greater degree exhibited greater activation in the right prefrontal cortex (PFC). The PFC is implicated in executive functions (EFs), including working memory (WM). Thus, this study investigated whether individual differences in EF capacity are associated with gait motor imagery ability and PFC activity. Thirty volunteers participated (mean age: 21.7 ± 1.8 years) in the study. Their EF capacity was assessed by the Trail Making Test - Part B (TMT-B). We measured the accuracy of gait motor imagery and PFC activity during mental walking using fNIRS, while changing task difficulty by varying the path width. The results showed that the overestimation of mental walking time over actual walking time and right PFC activity increased with an increase in the TMT-B times. These results suggest that the EF capacity, including WM, is strongly associated with gait motor imagery ability and right PFC activity. The brain network that includes the right PFC may play an important role in the maintenance and manipulation of gait motor imagery.