Rubega M, Passarotto E, Paramento M, Formaggio E, Masiero S
Department of NeuroscienceUniversity of Padova, Section of Rehabilitation 35128 Padova Italy.
Department of Information EngineeringUniversity of Padova 35131 Padova Italy.
IEEE Open J Eng Med Biol. 2024 May 10;5:339-344. doi: 10.1109/OJEMB.2024.3399469. eCollection 2024.
The pathophysiology of Adolescent Idiopathic Scoliosis (AIS) is not yet fully understood, but multifactorial hypotheses have been proposed that include defective central nervous system (CNS) control of posture, biomechanics, and body schema alterations. To deepen CNS control of posture in AIS, electroencephalographic (EEG) activity during a simple balance task in adolescents with and without AIS was parsed into EEG microstates. Microstates are quasi-stable spatial distributions of the electric potential of the brain that last tens of milliseconds. The spatial distribution of the EEG characterised by the orientation from left-frontal to right-posterior remains stable for a greater amount of time in AIS compared to controls. This spatial distribution of EEG, commonly named in the literature as class B, has been found to be correlated with the visual resting state network. Both vision and proprioception networks provide critical information in mapping the extrapersonal environment. This neurophysiological marker probably unveils an alteration in the postural control mechanism in AIS, suggesting a higher information processing load due to the increased postural demands caused by scoliosis.
青少年特发性脊柱侧凸（AIS）的病理生理学尚未完全明确，但已提出多种因素假说，包括中枢神经系统（CNS）对姿势控制存在缺陷、生物力学以及身体图式改变。为深入了解AIS中CNS对姿势的控制，在有和没有AIS的青少年进行简单平衡任务期间的脑电图（EEG）活动被解析为EEG微状态。微状态是大脑电势的准稳定空间分布，持续数十毫秒。与对照组相比，以从左额叶到右后部的方向为特征的EEG空间分布在AIS中在更长时间内保持稳定。EEG的这种空间分布在文献中通常称为B类，已发现其与视觉静息状态网络相关。视觉和本体感觉网络在绘制个人外部环境时都提供关键信息。这种神经生理标志物可能揭示了AIS中姿势控制机制的改变，表明由于脊柱侧凸导致姿势需求增加，信息处理负荷更高。
