The thinking, and the literature behind CT.
Long-form essays from the company, plus a sourced reading list. Every external figure is peer-reviewed research, government data, or a recognized clinical reference. Each card links to its source.
Long-form, in our own voice.
The science is in the citations below. The thinking is here. Field comparisons, parent guides, the regulatory posture, and a monthly running record of what we are actually doing.
Recovery is the measurement that matters.
Sideline detection is crowded and its ground truth is thin. The harder, higher-stakes problem is knowing when someone has returned to their own baseline. Why that is the measurement we are building.
How to tell if a concussion test is gaming-resistant.
SCAT5, ImPACT, Sway, and King-Devick compared on the one property that matters: can a motivated athlete defeat the test.
What every parent should know about youth concussion baselines.
A baseline test is supposed to protect your kid. It can also be the thing that lets them get sent back too early. How to tell which one yours is.
Why we are not a medical device, yet.
Honest framing of where Chronic Trace sits on the FDA pathway. What we can and cannot claim today, and why getting this right matters more than getting it fast.
Research log.
A monthly running record of substantive work at Chronic Trace. Patents filed, advisors signed, cohort milestones, regulatory steps, platform engineering. Updated each month.
A scale problem hiding behind a measurement problem.
Traumatic brain injury is one of the highest-burden, lowest-instrumented categories in modern medicine. Where other fields have biomarkers and imaging, brain medicine has questionnaires.
The lab is now in everyone's pocket.
Peer-reviewed validation has caught up: the camera in a modern smartphone can carry physiological measurement at clinically relevant accuracy across pose tracking, eye tracking, heart rate via rPPG, and pupillary response. The technology bottleneck moved off the hardware and onto the software.
Each domain Chronic Trace measures has its own literature.
The platform draws on decades of independent research validating each individual signal - pupillary autonomics, oculomotor function, postural sway, heart-rate variability, voice acoustics, retinal vasculature. Multi-modal fusion improves what any single signal can do alone.
The framework Chronic Trace is built into.
Software-as-a-Medical-Device guidance, federal TBI research programs, and clinical practice guidelines from FDA, NIH, CDC, DoD, and VA define the regulatory and clinical landscape Chronic Trace operates within.
External citations are offered as context for the clinical need Chronic Trace seeks to address. Citation of a study or source does not imply that source has reviewed, endorsed, or validated Chronic Trace technology. Where studies cite specific platforms other than Chronic Trace, those references are to those platforms' published results, not ours. Chronic Trace remains research-stage; no FDA clearance has been granted at this time.