Frequently asked questions about pupil neurofeedback
What people ask us about pupil-based neurofeedback, the science and the company.
We build neurotechnology that makes the brain's arousal system visible — through the pupil — and trainable. Our first product, myflow, measures and trains mindfulness, focus and mental wellbeing and has been used in elite sport; a clinical application is in development.
Pupil size co-varies with activity of the locus coeruleus, the brainstem nucleus that drives arousal via noradrenaline. A camera on the eye gives a non-invasive, real-time readout of a system that is otherwise only visible with MRI.
Yes. The training was developed at ETH Zurich and validated in peer-reviewed studies with 100+ participants (Meissner et al. 2023; Weijs et al. 2025, Nature Communications).
myflow is a mental-training product for performance contexts, not a medical device. The clinical application currently in development will follow the applicable regulatory pathway, however is not yet certified as medical device.
We run studies with research institutions, clubs and federations, and welcome clinical partners for upcoming trials. Write to contact@mindmetrix.ch or use the Partnership page.
At Campus Biotech in Geneva, with roots at ETH Zurich. MindMetrix AG was incorporated in 2022 as an ETH spin-off.