Test-retest reliability of corticokinematic coherence in young children with cerebral palsy: An observational longitudinal study

IF 2.7 4区医学 Q2 CLINICAL NEUROLOGY

Neurophysiologie Clinique/Clinical Neurophysiology Pub Date : 2024-03-27 DOI:10.1016/j.neucli.2024.102965

Josselin Démas , Mathieu Bourguignon , Rodolphe Bailly , Sandra Bouvier , Sylvain Brochard , Mickael Dinomais , Patrick Van Bogaert

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引用次数: 0

Abstract

Objectives

To assess the test-retest reliability of the corticokinematic coherence (CKC), an electrophysiological marker of proprioception, in children with cerebral palsy (CP).

Methods

Electroencephalography (EEG) signals from 15 children with unilateral or bilateral CP aged 23 to 53 months were recorded in two sessions 3 months apart using 128-channel EEG caps. During each session, children's fingers were moved at 2 Hz by an experimenter, in separate recordings for the more-affected (MA) and less-affected (LA) hands. The CKC was computed at the electrode and source levels, at movement frequency F0 (2 Hz) and its first harmonic F1 (4 Hz). A two-way mixed-effects model intraclass-correlation coefficient (ICC) was computed for the maximum CKC strength across electrodes at F0 and F1 obtained during the two sessions.

Results

ICC of the CKC strength acquired from LA and MA hands pooled together were respectively 0.51 (95% CI: 0.30–0.68) at F0 and 0.96 (95% CI: 0.93–0.98) at F1. The mean distances separating the CKC peaks in the source space at the two evaluation times were in the order of a centimeter.

Conclusion

CKC is a robust electrophysiologic marker to study the longitudinal changes in cortical processing of proprioceptive afferences in young children with CP.

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脑瘫幼儿皮质酮连贯性的重测可靠性：观察性纵向研究

方法使用 128 通道脑电图帽记录 15 名单侧或双侧 CP 患儿的脑电图（EEG）信号，这些患儿的年龄在 23 到 53 个月之间，分两次进行，每次间隔 3 个月。在每个疗程中，实验人员以 2 Hz 的频率移动儿童的手指，分别记录受影响较重（MA）和受影响较轻（LA）的手。在电极和声源水平、运动频率 F0（2 Hz）及其第一次谐波 F1（4 Hz）下计算 CKC。结果 LA 手和 MA 手集合在一起获得的 CKC 强度 ICC 在 F0 时分别为 0.51（95% CI：0.30-0.68），在 F1 时分别为 0.96（95% CI：0.93-0.98）。结论CKC是研究CP患儿大脑皮层对本体感觉刺激处理纵向变化的可靠电生理标记。

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

Neurophysiologie Clinique/Clinical Neurophysiology 医学-临床神经学

CiteScore

5.20

自引率

3.30%

发文量

审稿时长

60 days

期刊介绍： Neurophysiologie Clinique / Clinical Neurophysiology (NCCN) is the official organ of the French Society of Clinical Neurophysiology (SNCLF). This journal is published 6 times a year, and is aimed at an international readership, with articles written in English. These can take the form of original research papers, comprehensive review articles, viewpoints, short communications, technical notes, editorials or letters to the Editor. The theme is the neurophysiological investigation of central or peripheral nervous system or muscle in healthy humans or patients. The journal focuses on key areas of clinical neurophysiology: electro- or magneto-encephalography, evoked potentials of all modalities, electroneuromyography, sleep, pain, posture, balance, motor control, autonomic nervous system, cognition, invasive and non-invasive neuromodulation, signal processing, bio-engineering, functional imaging.