Effects of Left and Bilateral Transcutaneous Auricular Vagus Nerve Stimulation on Pain, Mood, and Autonomic Function in Female Fibromyalgia Patients

This study aimed to examine the effects of transcutaneous auricular vagus nerve stimulation (taVNS) on pain, depression, anxiety, functionality, and autonomic function in fibromyalgia syndrome (FMS). primary hypothesis: TAVSS application is not an effective treatment for depression, physical limitation, functional disability, anxiety, pain and autonomic nerve system in female FMS patients. secondary hypothesis: TAVSS application is an effective treatment for depression, physical limitation, functional disability, anxiety, pain and autonomic nerve system in female FMS patients.