Remarks on the analysis of steady-state responses: Spurious artifacts introduced by overlapping epochs
Remarks on the analysis of steady-state responses: Spurious artifacts introduced by overlapping epochs
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DOI：
10.1016/j.cortex.2021.05.023
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发表时间：
2021-08-25
期刊：
影响因子：
3.6
通讯作者：
Flo, Ana
中科院分区：
文献类型：
--
作者：
Benjamin, Lucas;Dehaene-Lambertz, Ghislaine;Flo, Ana
周期性且稳定的感觉输入可以导致有节奏且稳定的神经反应，这种现象通常称为神经夹带。尽管近年来使用神经夹带来研究大脑追踪规律的情况有所增加，但用于其量化的方法在文献中尚未明确定义。在这里，我们认为以前论文中使用的一些策略不足以研究稳态响应，并导致方法论上的假象。本评论的目的是讨论这些文章并提出神经夹带的替代措施。具体来说，我们应用了文献中报道的四种可能的替代方案和两种划时代的方法来量化模拟数据集上的神经夹带。我们的结果表明，Batterink 及其同事的原始文章中使用的重叠时代不可避免地会导致与重叠相对应的频率出现方法论假象。因此，我们强烈反对这种方法，并鼓励基于重叠时期的数据重新分析。此外，我们认为使用时频分解来计算低频相位相干性以揭示神经夹带并不是最佳选择。 (C) 2021 Elsevier Ltd. 保留所有权利。
Periodic and stable sensory input can result in rhythmic and stable neural responses, a phenomenon commonly referred to as neural entrainment. Although the use of neural entrainment to investigate the regularities the brain tracks has increased in recent years, the methods used for its quantification are not well-defined in the literature. Here we argue that some strategies used in previous papers, are inadequate for the study of steady-state response, and lead to methodological artefacts. The aim of this commentary is to discuss these articles and to propose alternative measures of neural entrainment. Specifically, we applied four possible alternatives and two epoching approaches reported in the literature to quantify neural entrainment on simulated datasets. Our results demonstrate that overlapping epochs, as used in the original Batterink and colleagues articles, inevitably lead to a methodological artefact at the frequency corresponding to the overlap. We therefore strongly discourage this approach and encourage the re-analysis of data based on overlapping epochs. Additionally, we argue that the use of time-frequency decomposition to compute phase coherence at low frequencies to reveal neural entrainment is not optimal. (C) 2021 Elsevier Ltd. All rights reserved.