The Instant Effects of Continuous Transcutaneous Auricular Vagus Nerve Stimulation at Acupoints on the Functional Connectivity of Amygdala in Migraine without Aura: A Preliminary Study

Table 1

The demographic and clinical data during the past four weeks ().

Characteristics	(Frequency/)
Gender (male/female)	2/25
Age
Disease duration in years
Frequency per month
Total time per month
VAS
MSQ
SDS score
SAS score

VAS: Visual Analog Scale; MSQ: Migraine Specific Quality-of-Life Questionnaire; SDS: Self-rating Depression Scale; SAS: Self-rating Anxiety Scale. Frequency/total time per month: The frequency/the total time of migraine attacks during the past four weeks.