Day‐to‐day individual alpha frequency variability measured by a mobile EEG device relates to anxiety

Lauren Sidelinger; Mengsen Zhang; Flavio FrohlichStacey B. Daughters

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Day‐to‐day individual alpha frequency variability measured by a mobile EEG device relates to anxiety

机译：Day‐to‐day individual alpha frequency variability measured by a mobile EEG device relates to anxiety

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Abstract The individual alpha frequency (IAF) has previously been identified as a unique neural signature within the 8–12?Hz alpha frequency band. However, the day‐to‐day variability of this feature is unknown. To investigate this, healthy participants recorded their own brain activity daily at home using the Muse 2 headband, a low‐cost consumer‐grade mobile electroencephalography (EEG) device. Resting‐state recordings of all participants using a high‐density (HD) EEG were also collected in lab before and after the at‐home data collection period. We found that the IAF extracted from the Muse 2 was comparable to that of location‐matched HD‐EEG electrodes. No significant difference was found between these IAF values before and after the at‐home recording period for the HD‐EEG device. Similarly, there was also no statistically significant difference between the beginning and end of the at‐home recording period for the Muse 2 headband over 1?month. Despite the group‐level stability of IAF, the individual‐level day‐to‐day IAF variability carried mental health‐relevant information: Exploratory analyses revealed a relationship between IAF day‐to‐day variability and trait anxiety. We also noted that the IAF systematically varied across the scalp and although the Muse 2 electrodes do not cover the occipital lobe where alpha oscillations were the strongest, IAFs measured in the temporal lobe and occipital lobe were strongly correlated. Altogether, these results show that mobile EEG devices are useful for studying IAF variability. The relationship between day‐to‐day variability of region‐specific IAF and the dynamics of psychiatric symptoms, particularly anxiety, should be further investigated.

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《The European journal of neuroscience.》 |2023年第11期|1815-1833|共19页
作者
Lauren Sidelinger; Mengsen Zhang; Flavio FrohlichStacey B. Daughters;
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作者单位

Department of Psychology and Neuroscience,University of North Carolina at Chapel Hill;

Department of Psychiatry,University of North Carolina at Chapel Hill;

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正文语种英语
中图分类神经病学与精神病学;
关键词
anxiety; EEG analysis; EEG frequency band analysis; EEG spectral analysis; human EEG alpha and theta oscillations;

Day‐to‐day individual alpha frequency variability measured by a mobile EEG device relates to anxiety

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