J 2024

EEG Microstates in Mood and Anxiety Disorders: A Meta-analysis

CHIVU, Alina, Simona A PASCAL, Alena DAMBORSKÁ and Miralena I TOMESCU

Basic information

Original name

EEG Microstates in Mood and Anxiety Disorders: A Meta-analysis

Authors

CHIVU, Alina, Simona A PASCAL, Alena DAMBORSKÁ (203 Czech Republic, belonging to the institution) and Miralena I TOMESCU (guarantor)

Edition

BRAIN TOPOGRAPHY, DORDRECHT, SPRINGER, 2024, 0896-0267

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30103 Neurosciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.700 in 2022

Organization unit

Faculty of Medicine

UT WoS

001063537600002

Keywords in English

Microstates; Meta-Analysis; Depression; Anxiety; PTSD; Bipolar Disorder; Panic Disorder

Tags

International impact, Reviewed
Změněno: 12/7/2024 13:00, Mgr. Tereza Miškechová

Abstract

V originále

To reduce the psycho-social burden increasing attention has focused on brain abnormalities in the most prevalent and highly co-occurring neuropsychiatric disorders, such as mood and anxiety. However, high inter-study variability in these patients results in inconsistent and contradictory alterations in the fast temporal dynamics of large-scale networks as measured by EEG microstates. Thus, in this meta-analysis, we aim to investigate the consistency of these changes to better understand possible common neuro-dynamical mechanisms of these disorders. In the systematic search, twelve studies investigating EEG microstate changes in participants with mood and anxiety disorders and individuals with subclinical depression were included in this meta-analysis, adding up to 787 participants. The results suggest that EEG microstates consistently discriminate mood and anxiety impairments from the general population in patients and subclinical states. Specifically, we found a small significant effect size for B microstates in patients compared to healthy controls, with larger effect sizes for increased B presence in unmedicated patients with comorbidity. In a subgroup meta-analysis of ten mood disorder studies, microstate D showed a significant effect size for decreased presence. When investigating only the two anxiety disorder studies, we found a significantly small effect size for the increased microstate A and a medium effect size for decreased microstate E (one study). However, more studies are needed to elucidate whether these findings are diagnostic-specific markers. Results are discussed in relation to the functional meaning of microstates and possible contribution to an explanatory mechanism of overlapping symptomatology of mood and anxiety disorders.