International Society for Neurofeedback & Research www.isnr.org
   A professional organization "to promote excellence in clinical practice,
   educational applications, and research in applied neuroscience in order
   to better understand and enhance brain function."

The Association for Applied Psychophysiology & Biofeedback www.aapb.org
   An international society for mind-body research, health care and education.

Biofeedback Certification International Alliance www.bcia.org
   Offers Board Certification in Neurofeedback.

Institute for Heart Math www.heartmath.org
   A research and educational organization dedicated to psychophysiology,
   neurocardiology, and biophysics research and clinical treatment outcome
   studies to advance the understanding of heart-brain  interactions, and heart-
   rhythm-patterns and heart-rate-variability analysis.
 
www.blatmanpainclinic.com