Supplementary motor area is deactivated during mental rotation tasks with biomechanical constraints in fMRI.

IF 2.4 3区医学 Q3 NEUROSCIENCES

Frontiers in Human Neuroscience Pub Date : 2024-10-10 eCollection Date: 2024-01-01 DOI:10.3389/fnhum.2024.1455587

Makoto Nomura, Michihiko Koeda, Yumiko Ikeda, Amane Tateno, Ryosuke Arakawa, Yoichiro Aoyagi

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引用次数: 0

Abstract

Introduction: Mental rotation (MR) tasks of body parts involve anatomically interconnected brain systems. The systems are implicated in sensorimotor information integration and activate cortical motor-related areas, corresponding to the execution of similar motor tasks. In this study, we aimed to investigate the effect of varying the angle in the hand MR task on cerebral activation of the motor-related areas.

Methods: Twenty healthy right-handed participants were recruited. We investigated cerebral activation while each participant decided whether a hand-palm image, rotated by 0°, 90°, 180°, and 270°, was a right or left hand.

Results and discussion: A significant negative correlation between the angle and brain activity was observed in the right and left supplementary motor area (SMA) and right posterior anterior cingulate gyrus. The SMA was inactivated with 180°- or 270°-rotated images in the regions of interest analysis. 180°- and 270°-rotated palms would be biomechanically difficult to position; thus, SMA deactivation may be closely associated with biomechanical constraints. This study provided novel findings regarding the neurophysiological mechanisms of motor imagery and may be useful in developing treatment plans using MR tasks during patient rehabilitation.

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在进行具有生物力学限制的脑力旋转任务时，fMRI 中的辅助运动区会失活。

简介：身体部位的心智旋转（MR）任务涉及解剖学上相互关联的大脑系统：身体部位的心智旋转（MR）任务涉及解剖学上相互关联的大脑系统。这些系统与感觉运动信息整合有关，并激活皮层运动相关区域，与执行类似的运动任务相对应。在这项研究中，我们旨在研究手部磁共振任务中改变角度对大脑运动相关区域激活的影响：方法：我们招募了 20 名健康的右撇子参与者。方法：我们招募了 20 名健康的右撇子参与者，在每位参与者判断旋转 0°、90°、180° 和 270°的手掌图像是左手还是右手时，我们对大脑激活情况进行了调查：在左右辅助运动区（SMA）和右侧扣带回后前部观察到，角度与大脑活动之间存在明显的负相关。在感兴趣区分析中，180°或 270°旋转图像使 SMA 失活。180°和270°旋转的手掌在生物力学上很难定位；因此，SMA失活可能与生物力学限制密切相关。这项研究为运动想象的神经生理机制提供了新的发现，可能有助于在患者康复过程中使用磁共振任务制定治疗计划。

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

Frontiers in Human Neuroscience 医学-神经科学

CiteScore

4.70

自引率

6.90%

发文量

830

审稿时长

2-4 weeks

期刊介绍： Frontiers in Human Neuroscience is a first-tier electronic journal devoted to understanding the brain mechanisms supporting cognitive and social behavior in humans, and how these mechanisms might be altered in disease states. The last 25 years have seen an explosive growth in both the methods and the theoretical constructs available to study the human brain. Advances in electrophysiological, neuroimaging, neuropsychological, psychophysical, neuropharmacological and computational approaches have provided key insights into the mechanisms of a broad range of human behaviors in both health and disease. Work in human neuroscience ranges from the cognitive domain, including areas such as memory, attention, language and perception to the social domain, with this last subject addressing topics, such as interpersonal interactions, social discourse and emotional regulation. How these processes unfold during development, mature in adulthood and often decline in aging, and how they are altered in a host of developmental, neurological and psychiatric disorders, has become increasingly amenable to human neuroscience research approaches. Work in human neuroscience has influenced many areas of inquiry ranging from social and cognitive psychology to economics, law and public policy. Accordingly, our journal will provide a forum for human research spanning all areas of human cognitive, social, developmental and translational neuroscience using any research approach.