Concussion & TBI · objective assessment

The objective measure 
for concussion. 

Cardiology has troponin. Concussion and TBI have had nothing. Chronic Trace turns one phone capture into objective, hard-to-fake biomarkers, scored against your own baseline.

Software as a Medical Device in development. Patent-pending across concussion and TBI.

Objective biomarkers
Balance · eyes · cognition
Manipulation-resistant
Involuntary signals
Personal baseline
Not population norms
One readoutsingle capture
Eyes
Involuntary
Balance
Involuntary
Cognition
Performance
Reaction
Performance
One score
Lower is healthier. Fused, then scored against your own baseline.
17
Healthy · lowElevated

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 capture. 
Four fields. 

The same single capture serves sport, defense, clinical trials, and workplace readiness. Shared science. Different decisions.

Pathway 01

Sport & occupational

Baseline before. Clear to return after.

Pre-participation baselines, sub-concussive exposure, and return-to-play decision support.

BaselinesSub-concussiveReturn-to-play
Field cohorts
  • Football · contact exposure
  • Mixed Martial Arts · active fighters
  • Combat sports · return-to-sport

Active and planned research programs. No identifiable subject data shown.

Decision-support across every pathway, not diagnostic. Results require clinical interpretation; clinical decisions remain with licensed healthcare professionals.

How it works

Capture once. 
Track over time. 

One capture sets a personal baseline. Every session after is scored against it, so drift shows up as a line you can read.

01Capture

One short capture.

Balance, eyes, and cognition, read from a single clip on a phone they already own.

On-deviceNo wearable
BALANCEEYESCOGNITIONONE CLIP · MULTIMODAL
02Personal baseline

Their own baseline.

Every signal folds into one index, scored against this person, never a population average.

Calibrated indexSelf-referenced
INDEXSCORED AGAINST SELF
03Tracked over time

Watched session to session.

Recovery reads as a line. Drift shows up early, and return-to-play rests on the trend, not a single day.

Trend over timeReturn-to-play
BASELINE BANDEVENT · RECOVERYSESSION 01 → 07 · TRENDED
The readingDecision support
0
/100Trace Score
Within personal baseline

Every signal folds into one Trace Score, measured against this person's own baseline.

A decision-support signal, not a diagnosis. Clinical decisions remain with licensed professionals.

The science

Many signals. 
One capture. 

Balance, the eyes, and cognition in a single recording. Each domain is grounded in peer-reviewed neuroscience and scored against your own baseline.

These are involuntary streams. They cannot be willed away, which is what makes the signal manipulation-resistant.

01
Live

Oculomotor

Saccade latency · pursuit gain · fixation

0.9° error
vs baseline94%
02
Live

Postural sway

33-point kinematics · drift · sway path

12mm sway
vs baseline91%
03
Live

Cognition

Trail-making · Stroop interference

84index
vs baseline84%
04
Live

Reaction time

Millisecond capture · randomized ISI

248ms
vs baseline88%
05
Research

Cardiac (rPPG)

HRV from facial video · RMSSD · SDNN

·research
vs baseline0%
06
Research

Pupillary

Light-reflex amplitude · constriction velocity

·research
vs baseline0%
Built to resist gaming
You can't will a saccade slower, your gaze steadier, or your balance corrections still.
0 live
Scored tests
1 clip
Single multimodal capture
00
U.S. patents pending
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 calibrated index, scored against the subject's own baseline.

00/100
Within baseline
Personal baseline
11
Delta
+3
Captures
0
00–39
Within baseline
Coherent with prior captures
40–69
Deviation
Multi-domain drift; re-evaluate
70–100
Disruption
Material dispersion; clinical review

Decision-support signal, not diagnostic. Results require clinical interpretation.

Sample assessment output

One question: how far from baseline? 

A representative longitudinal record. The index sits within the personal baseline, a head impact spikes it, and the return toward baseline reads at a glance.

Trace Score Baseline 12 Impact eventLower is better
WITHIN NORMAL RANGE0204060IMPACTDec 5Jan 9Feb 6
Pre-impact baseline
0
Average of prior sessions
Post-impact peak
0
Session after the head impact
Recovered to
0
Back within baseline by Feb 6

Sample data for illustration only. Not for clinical interpretation.

FAQ

Worth 
asking. 

Concussion, TBI, return-to-play. The honest answers, including the limits.

Ask us something else
Human reply · <1 business day

Research-stage. Decision-support only, not diagnostic. Clinical decisions remain with licensed healthcare professionals.

The baseline starts here

Baseline before. 
Clear to return.