About

Built in a working clinic.

PreFix Systems makes biofeedback software and hardware for clinicians. Every feature in PreFix was tried in the chair at our own practice before it shipped.

Gabriel McCoy, LMFT

Gabriel is Clinical Director of Trinity Counseling Center in Medford, Oregon, and has practiced neurofeedback for more than twenty years. He trained at the EEG Institute and writes the PreFix software himself.

PreFix began as a practical fix: aging equipment, unreliable discs, and clients who couldn't sit through a stopped movie. It grew into a single app for pIR HEG and HRV training, with its own hardware to match.

What we believe

  • Clinicians should know exactly what their equipment measures, so we publish full specifications.
  • Clients train better on content they choose.
  • Software should work on the computer you already have, Mac or Windows.
  • Fewer, earned rewards beat constant noise.