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Erschienen in: Sleep and Breathing 1/2021

17.03.2020 | Sleep Breathing Physiology and Disorders • Original Article

Dysfunction of processing task-irrelevant emotional faces in primary insomnia patients: an evidence from expression-related visual MMN

verfasst von: Yue Zhang, Jian Chen, Xunyao Hou, Yunliang Guo, Renjun Lv, Song Xu, Shanjing Nie, Xueping Liu

Erschienen in: Sleep and Breathing | Ausgabe 1/2021

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Abstract

Purpose

According to the cognitive processing perspectives, patients with insomnia have insufficient neural management of expressional information. In this study, we compared the pre-attentive processing function of task-irrelevant facial expressions in patients with primary insomnia (PI) and matched healthy controls, with expression-related mismatch negativity (EMMN) elicited by emotional faces as the indicator.

Methods

Using three schematic facial expressions (neutral, happy, and sad) as task-irrelevant stimuli, we investigated the visual processing of PI patients (n = 22) and healthy subjects (n = 22) in an expression-related oddball paradigm designed to elicit the visual N170 and EMMN component. After recording and analyzing the electroencephalogram of all participants, amplitude analysis of N170 and EMMN was eventually conducted under corresponding time window.

Results

Compared with control group, the amplitude of sad-EMMN component was significantly attenuated in patients with PI, while no remarkable difference was observed under the happy condition. In addition, negative cognitive bias was further validated in the control group, but not presented in the PI group.

Conclusion

The current data suggest dysfunctional expressional information processing in PI patients, accompanied by the disorganization of high level perceptual strategy of processing facial emotional expression.
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Metadaten
Titel
Dysfunction of processing task-irrelevant emotional faces in primary insomnia patients: an evidence from expression-related visual MMN
verfasst von
Yue Zhang
Jian Chen
Xunyao Hou
Yunliang Guo
Renjun Lv
Song Xu
Shanjing Nie
Xueping Liu
Publikationsdatum
17.03.2020
Verlag
Springer International Publishing
Erschienen in
Sleep and Breathing / Ausgabe 1/2021
Print ISSN: 1520-9512
Elektronische ISSN: 1522-1709
DOI
https://doi.org/10.1007/s11325-020-02058-5

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