Cardiology has troponin. Concussion and TBI have had nothing. Chronic Trace turns one session on your phone into objective, hard-to-fake biomarkers, scored against your own baseline.
Software as a Medical Device in development. Patent-pending across concussion and TBI. Chronic Trace is a research-stage platform, positioned as a decision-support tool only. It is not diagnostic; results require clinical interpretation, and clinical decisions remain with licensed healthcare professionals.
Bring your program onto the baseline. We reply within one business day.
Decision support, not diagnostic. Shared in confidence; used only to evaluate fit.
Not one recording. Four separate tests, run back to back in one guided session. Balance and eye tracking use the device camera; the cognitive and reaction-time tests are answered on screen. Each maps to real neural machinery: the eyes to the brainstem, the vestibular system, the cerebellum and frontal cortex; balance to the vestibular and cerebellar systems.
A healthy brain keeps these systems in sync. Injury pulls them apart, and we score that drift. Two of the four streams rest on involuntary machinery: a person can degrade them on purpose, but cannot perform better than their physiology allows. That asymmetry is what makes them resistant to manipulation.
Brainstem · vestibular system · cerebellum · frontal eye fields
Saccade latency, smooth pursuit, near point of convergence, vestibulo-ocular reflex, and visual motion sensitivity.
Slowed saccades and a degraded vestibulo-ocular reflex are among the earliest, hardest-to-fake concussion signs.
Vestibular system · cerebellum
Three-stance BESS plus an eyes-closed Romberg, with sway path and center-of-mass drift.
Increased sway and postural instability are hallmark post-concussion findings.
Prefrontal · cortical networks
Trail-making, parts A and B, with the set-shifting cost scored separately.
Processing speed and attention measurably slow after a concussion.
Sensorimotor cortex · motor pathways
Simple reaction time with randomized inter-stimulus intervals.
Slowed reaction time is a robust, quantifiable concussion marker.
You can't will a saccade slower, your gaze steadier, or your balance corrections still.
That holds for the vestibular, ocular motor and postural streams. The cognitive and reaction-time tests are instructed tasks, and we treat them as such rather than claiming the whole battery is unfakeable.
Methodology grounded in peer-reviewed neuroscience · Software as a Medical Device in development
Research-stage platform, positioned as decision-support only, not diagnostic. Results require clinical interpretation, and clinical decisions remain with licensed healthcare professionals.
The same session serves sport, defense, clinical trials, and workplace readiness. Shared science. Different decisions.
Baseline before. Evidence after.
Pre-participation baselines, repeat-exposure tracking, and return-to-play decision support.
Measurement that does not rely on self-report.
Blast and impact exposure, disability evaluation, and assessment where a clinic is not reachable.
Calibrated endpoints in place of rater variance.
Repeatable treatment-response and severity measures for TBI sponsors and CROs.
Fit for duty, before the shift.
Return-to-work clearance, safety-critical roles, and post-incident readiness checks.
Decision-support across every pathway, not diagnostic. Results require clinical interpretation; clinical decisions remain with licensed healthcare professionals. No identifiable subject data shown.
Every domain folded into one index, scored against the subject's own baseline. Lower reads healthier.
A capture that agrees with everything before it. Nothing to act on, which is most captures, and exactly why they are worth taking often.
One capture is read against people in general. It takes repeated captures before the system can describe how much you personally vary, and only then does a change mean anything.
The first capture has nothing to be compared against. Your result is read against a general reference, which is the same problem every population-referenced test has. A healthy person can sit below the average. Someone impaired can still sit above it.
A second capture gives a direction but not a range. There is still no way to tell an ordinary day from a meaningful one, because how much you naturally vary has not been established. The system does not pretend otherwise.
At the third capture there is enough to estimate your own variability, and scoring switches from a general reference to your own distribution. This is the moment the measurement becomes yours, and the band narrows immediately.
Each additional capture sharpens the estimate of your normal. A change that would vanish inside a population average becomes visible against a band this narrow. That is why the tenth capture matters more than the first.
Illustrative. Lower reads healthier. Band thresholds are calibration estimates pending derivation from a study cohort. Decision support, not diagnostic.
A representative record across ten sessions. The index sits inside the personal band, a head impact drives it up, and the return toward baseline reads at a glance.
Sample data for illustration only, not a subject record and not for clinical interpretation. The platform does not detect impacts; the event above is entered by the operator.
Concussion, TBI, return-to-play. The honest answers, including the limits.
Ask us something elseWhat it is and what it takes to run one.
04It runs a session of approximately three to six minutes on a commodity camera-enabled device: five guided tests covering vestibular and ocular motor, anti-saccade, postural, cognitive, and reaction-time signals. The output is a set of calibrated indices that track change from an individual’s own baseline. It is a decision-support tool only. It is not diagnostic, and results require clinical interpretation.
The method, and what a score actually means.
03In practice, on the sideline and after.
03The longest section here, on purpose.
07Where the science and the regulatory path stand.
03Research-stage. Decision-support only, not diagnostic.
Clinical decisions remain with licensed healthcare professionals.