01
Sport
Baseline before. Evidence after.
Pre-participation baselines, repeat-exposure tracking, and return-to-play decision support.
BaselinesExposureReturn-to-play
The objective
measure for
concussion.
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.
Objective biomarkers
Balance · eyes · cognition · reaction
Manipulation-resistant
Involuntary signals
Personal baseline
Not population norms
Scored against self
Four channels fold into one index, measured against this person's own prior captures, never a population average. Point at a channel to see what it reads.
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.
Invitation-led
Request
access.
Bring your program onto the baseline. We reply within one business day.
CaptureSingle
Live channels4
ReferenceOwn baseline
Response1 business day
Decision support, not diagnostic. Shared in confidence; used only to evaluate fit.
Who runs it
One session.
Four fields.
The same session serves sport, defense, clinical trials, and workplace readiness. Shared science. Different decisions.
02
Defense & VA
Measurement that does not rely on self-report.
Blast and impact exposure, disability evaluation, and assessment where a clinic is not reachable.
Blast exposureDisability evalReturn-to-duty
03
Trials
Calibrated endpoints in place of rater variance.
Repeatable treatment-response and severity measures for TBI sponsors and CROs.
Sponsor endpointsTreatment-responseSeverity
04
Workplace
Fit for duty, before the shift.
Return-to-work clearance, safety-critical roles, and post-incident readiness checks.
Return-to-workSafety-criticalPost-incident
Decision-support across every pathway, not diagnostic. Results require clinical interpretation; clinical decisions remain with licensed healthcare professionals. No identifiable subject data shown.
The scienceEvery signal
Every signal
maps to the brain.
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, 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 are involuntary and cannot be willed away, which is what makes those signals resistant to manipulation.
01
CameraInvoluntary
Oculomotor
Brainstem · cerebellum · frontal eye fields
Saccade latency, smooth pursuit, and fixation stability.
In concussion
Slowed saccades and a broken vestibulo-ocular reflex are among the earliest, hardest-to-fake concussion signs.
02
CameraInvoluntary
Postural
Vestibular system · cerebellum
Three-stance BESS plus an eyes-closed Romberg, with sway path and center-of-mass drift.
In concussion
Increased sway and postural instability are hallmark post-concussion findings.
03
TouchVoluntary
Cognition
Prefrontal · cortical networks
Trail-making and Stroop interference under escalating load.
In concussion
Processing speed and attention measurably slow after a concussion.
04
TouchVoluntary
Reaction
Sensorimotor cortex · motor pathways
Simple reaction time with randomized inter-stimulus intervals.
In concussion
Slowed reaction time is a robust, quantifiable concussion marker.
The involuntary half
You can't will a saccade slower, your gaze steadier, or your balance corrections still.
That holds for the oculomotor 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.
0 live
Scored tests
Zero
Added hardware
Your own
Baseline, not population avg
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 headline score
The Trace Score.
Every domain folded into one index, scored against the subject's own baseline. Lower reads healthier.
14/100
Within baseline
Personal baseline
11
Delta
+3
Captures
12
Inside the band
A capture that agrees with everything before it. Nothing to act on, which is most captures, and exactly why they are worth taking often.
00–39
Within baseline
40–69
Deviation
70–100
Disruption
The baseline · How it learns youA baseline isn't a test.
A baseline isn't a test.
It's a habit.
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.
General referenceYour band, after three capturesLower reads healthier
01Capture one
It doesn't know you yet.
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.
1 captureNo personal reference
02Capture two
Two points can't describe a person.
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.
2 capturesDirection, not range
03Capture three
Now it knows you.
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.
3 capturesPersonal band engages
04Every capture after
And the band keeps tightening.
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.
OngoingResolution improves with use
Illustrative. Lower reads healthier. Band thresholds are calibration estimates pending derivation from a study cohort. Decision support, not diagnostic.
Sample assessment output
One question: how far from baseline?
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.
Trace ScoreBaseline 12Impact noted by operatorLower is better
Personal baseline
0
Built from repeated captures before the impact
Post-impact peak
0
First session after the noted impact
Sessions to return
0
Until the index sits back inside the personal range
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.
FAQ
Worth
asking.
Concussion, TBI, return-to-play. The honest answers, including the limits.
Ask us something elseHuman reply · <1 business day
Research-stage. Decision-support only, not diagnostic. Clinical decisions remain with licensed healthcare professionals.