Quantitative EEG fingerprints: Spatiotemporal stability in interhemispheric and interannual coherence

IF 2.5 3区心理学 Q3 NEUROSCIENCES

International Journal of Psychophysiology Pub Date : 2024-11-28 DOI:10.1016/j.ijpsycho.2024.112478

Sultan Tarlacı , Açelya Hıdımoğlu

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引用次数: 0

Abstract

The aim of our study is to examine the persistence of EEG coherence in the fundamental waves—delta, theta, alpha, and beta—both across spatial domains (within the brain, interhemispheric) and over extended periods (interannual). The long-term stability of a specific EEG wave coherence suggests its potential as a neural fingerprint. A total of 28 participants were included in the intrahemispheric-interannual FFT coherence analysis, comparing EEG data collected years apart. The average interannual interval between the first and second EEG recordings was 7.11 ± 4.56 years, with a range from 1.88 to 19.19 years. The combined data from the two EEG sessions shared 62.7 % of their variance, underscoring significant overlap in their information content. The interannual canonical correlation between the first and second EEGs was 0.792, indicating a strong relationship over time. Overall, alpha coherence, particularly in the frontal lobe, showed marked long-term stability, suggesting it as a strong candidate for an EEG fingerprint. Notably, when comparing fundamental wave coherences in the occipital lobe between the first and second EEGs, only the beta coherence exhibited a remarkable correlation over the years.

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定量脑电图指纹图谱：半球间和年际一致性的时空稳定性

我们研究的目的是检查脑电图在基本波——δ、θ、α和β中一致性的持久性，这两种一致性跨越空间域（在大脑内，半球间）和延长时间（年际）。特定脑电图波相干性的长期稳定性表明其作为神经指纹的潜力。共有28名参与者被纳入脑内-年际FFT一致性分析，比较相隔几年收集的脑电图数据。第一次和第二次脑电图记录的平均年际间隔为7.11±4.56年，范围为1.88 ~ 19.19年。两个EEG会话的合并数据共享了62.7%的方差，强调了其信息内容的显著重叠。第一次脑电图和第二次脑电图的年际典型相关为0.792，表明两者之间存在较强的时间相关性。总的来说，阿尔法连贯性，特别是在额叶，显示出明显的长期稳定性，这表明它是脑电图指纹的有力候选者。值得注意的是，当比较第一脑电图和第二脑电图的枕叶基波相干性时，只有β相干性多年来表现出显著的相关性。

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

International Journal of Psychophysiology 医学-神经科学

CiteScore

5.40

自引率

10.00%

发文量

177

审稿时长

3-8 weeks

期刊介绍： The International Journal of Psychophysiology is the official journal of the International Organization of Psychophysiology, and provides a respected forum for the publication of high quality original contributions on all aspects of psychophysiology. The journal is interdisciplinary and aims to integrate the neurosciences and behavioral sciences. Empirical, theoretical, and review articles are encouraged in the following areas: • Cerebral psychophysiology: including functional brain mapping and neuroimaging with Event-Related Potentials (ERPs), Positron Emission Tomography (PET), Functional Magnetic Resonance Imaging (fMRI) and Electroencephalographic studies. • Autonomic functions: including bilateral electrodermal activity, pupillometry and blood volume changes. • Cardiovascular Psychophysiology:including studies of blood pressure, cardiac functioning and respiration. • Somatic psychophysiology: including muscle activity, eye movements and eye blinks.