期刊
BIOLOGICAL PSYCHOLOGY
卷 142, 期 -, 页码 80-89出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.biopsycho.2019.01.014
关键词
Transcutaneous vagus nerve stimulation; Worry; Perseverative cognition; Breathing focus task
资金
- Netherlands Organization for Scientific Research (NWO) [451-14-013]
Worrying is a central component of anxiety disorders. We tested whether non-invasive vagus nerve stimulation reduces negative thought intrusions in high worriers. Worry was assessed with a Breathing Focus Task, which consists of a pre-worry period, a worry induction, and a post-worry period. Ninety-seven high worriers were randomly allocated to receive transcutaneous electrical stimulation of the auricular branch of the vagus nerve at the concha (tVNS), or of the earlobe (sham stimulation) throughout the lab session. Participants who received tVNS reported significantly fewer negative thought intrusions during the pre-worry period, but the effects of tVNS after the worry induction were mixed. An exploratory analysis indicated that participants in the tVNS condition were more likely to report negative thought intrusions shortly after the worry induction, but became less likely to do so as the post-worry period went on. No effects of tVNS on RMSSD were observed. These findings provide preliminary indications that tVNS may decrease the occurrence of worrisome thoughts.
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