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. 2021 Sep:167:69-76.
doi: 10.1016/j.ijpsycho.2021.06.015. Epub 2021 Jul 2.

Fronto-lateral alpha power asymmetry in panic disorder

Lars Thoma  1 , Kristin Koller-Schlaud  2 , Katharina Gaudlitz  3 , Nicole Tänzer  3 , Jürgen Gallinat  4 , Norbert Kathmann  5 , Andreas Ströhle  3 , Johannes Rentzsch  2 , Jens Plag  3
Affiliations

Fronto-lateral alpha power asymmetry in panic disorder

Lars Thoma et al. Int J Psychophysiol. 2021 Sep.

Abstract

Resting state alpha power asymmetry in frontal and temporal regions has been reported in various clinical populations, possibly indicating deficits in prefrontal control. In panic disorder (PD), results regarding alpha asymmetric activity to date have been mixed. This study compared 55 PD patients and 42 healthy controls (HC) with regards to resting state alpha power asymmetry. Our results show more right-than-left fronto-lateral alpha power in PD, whereas at other sites and in HC no significant differences were detected. These results support the notion of altered neurobiological processes in PD that possibly represent a vulnerability to the experience of panic attacks. Further studies are needed to clarify potential causal implications of this finding in the genesis of PD, as well as to specify the functional significance of fronto-lateral alpha power asymmetry in PD.

Keywords: Alpha asymmetry; Anxiety disorders; Electroencephalography (EEG); Panic disorder; Resting state.

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