Nishida, Keiichiro; Morishima, Yosuke; Pascual-Marqui, Roberto D.; Minami, Shota; Yamane, Tomonari; Michikura, Masahito; Ishikawa, Hideki; Kinoshita, Toshihiko (2021). Mindfulness augmentation for anxiety through concurrent use of transcranial direct current stimulation: a randomized double-blind study. Scientific reports, 11(1), p. 22734. Springer Nature 10.1038/s41598-021-02177-3
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Transcranial direct current stimulation (tDCS) have revealed the capability to augment various types of behavioural interventions. We aimed to augment the effects of mindfulness, suggested for reducing anxiety, with concurrent use of tDCS. We conducted a double-blind randomized study with 58 healthy individuals. We introduced treadmill walking for focused meditation and active or sham tDCS on the left dorsolateral prefrontal cortex for 20 min. We evaluated outcomes using State-Trait Anxiety Inventory-State Anxiety (STAI) before the intervention as well as immediately, 60 min, and 1 week after the intervention, and current density from electroencephalograms (EEG) before and after the intervention. The linear mixed-effect models demonstrated that STAI-state anxiety showed a significant interaction effect between 1 week after the intervention and tDCS groups. As for alpha-band EEG activity, the current density in the rostral anterior cingulate cortex (rACC) was significantly reduced in the active compared with the sham stimulation group, and a significant correlation was seen between changes in STAI-trait anxiety and the current density of the rACC in the active stimulation group. Our study provided that despite this being a one-shot and short intervention, the reduction in anxiety lasts for one week, and EEG could potentially help predict its anxiolytic effect.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > University Psychiatric Services > University Hospital of Psychiatry and Psychotherapy > Translational Research Center 04 Faculty of Medicine > University Psychiatric Services > University Hospital of Psychiatry and Psychotherapy |
UniBE Contributor: |
Morishima, Yosuke |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
2045-2322 |
Publisher: |
Springer Nature |
Language: |
English |
Submitter: |
Yosuke Morishima |
Date Deposited: |
16 Dec 2021 09:06 |
Last Modified: |
05 Dec 2022 15:55 |
Publisher DOI: |
10.1038/s41598-021-02177-3 |
PubMed ID: |
34815458 |
BORIS DOI: |
10.48350/161995 |
URI: |
https://boris.unibe.ch/id/eprint/161995 |
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