How a session works
The measurement sequence.
Seven steps from setup to longitudinal record. Designed to fit beside an existing protocol, not replace it.
Vexis pairs real-time electroencephalography with the manual therapies practitioners already trust. It listens to the brain while you work — so the effect of your touch is no longer invisible. Band by band, second by second, the nervous system settling as the session unfolds.
For three thousand years, acupressure has treated nervous systems without ever directly seeing one. We thought that should change.
— Tale Research
Seven steps from setup to longitudinal record. Designed to fit beside an existing protocol, not replace it.
Vexis is a measurement instrument for credentialed clinicians. It sits beside your protocol, makes the response visible as it happens, and leaves the craft and the clinical judgment with you.
Real-time electroencephalography running alongside the session. No pausing, no post-hoc analysis — Vexis listens to the brain while your hands are on the body.
A single, clinically meaningful marker of the relaxation response: (α + θ) / (β + γ). When the autonomic nervous system settles into parasympathetic dominance, this ratio climbs.
The first thirty seconds capture where the patient arrived. Every moment after is measured against that starting point, so the magnitude and trajectory of the response are visible as they unfold.
Protocol transitions, Deqi sensations, and practitioner notes are timestamped directly into the record. Each session becomes a precise neurophysiological story — not an undifferentiated signal trace.
Over time, each encounter becomes a trajectory: how quickly a patient now reaches relaxation compared to their first visit, how their resting baseline has shifted, how their response magnitude is trending.
Patient data stays on the practitioner's machine. No cloud sync required, no third-party telemetry, no vendor-held health records. The instrument is yours, and so is the data.
Vexis continuously decomposes the clinical EEG signal into its canonical frequency bands — and derives a single, clinically meaningful marker grounded in decades of research on meditation, biofeedback, and the relaxation response first described by Herbert Benson in the 1970s.
The brain's resting rhythm. Dominant when the eyes are closed, when anxious chatter recedes, and when the nervous system is at ease. The single most studied EEG correlate of relaxation.
The frequency of deep meditation, hypnagogic states, and introspective calm. Elevated theta is a hallmark of experienced meditators and of patients responding deeply to somatic therapies.
Cortical arousal — thinking, planning, vigilance, and at its higher ranges, anxiety. Successful relaxation therapies quiet beta.
High-frequency binding activity, often elevated in stress and hyperarousal.
A single composite index of parasympathetic dominance. As relaxation deepens, alpha and theta rise, beta and gamma fall, and the ratio climbs — a quantitative signature of the very state acupressure has long sought to induce.
Vexis is not a diagnostic tool. It does not treat, cure, or prevent disease. It is a measurement instrument — a way of seeing — built to support, not replace, the craft and judgment of the practitioner. Every clinician using Vexis remains fully responsible for clinical decisions and for obtaining informed patient consent.
We build the instrument. The practitioner brings the craft. If Vexis sounds like something your practice could use, we'd like to hear from you.
vexis@taleresearch.com