HRV Biofeedback in Fibromyalgia

RSA Biofeedback Condition. The biofeedback will consist of 10 weekly sessions of training, at the same time of day for each subject. The details of the procedure for RSA biofeedback are described in Appendix A. One single practitioner, a certified biofeedback technician, will provide the biofeedback following the aforementioned protocol. In each session, 20 minutes of biofeedback will be delivered using a J\&J C-2+ Physiograph. The participant will be taught to breathe at her resonant frequency, as a first step to training the individual how to produce maximal increases in amplitude of RSA.

EEG Biofeedback Condition. Participants assigned to this condition will receive 10 sessions of EEG alpha biofeedback. In each session, 20 minutes of biofeedback will be delivered using a J\&J I-330-C2+ physiograph. The participant will learn how to modify specific brainwave activity known as alpha. In particular, participants will be taught to increase amplitude of alpha in the range of 8-12 Hz. Increased amplitude is this range is associated with relaxation and reduction of anxiety, but not baroreflex gain. Participants will also practice for two 20-minute periods daily using the same methods used to increase alpha found in lab sessions.