Writing & literature

The thinking, and the literature. 

Essays in our own voice, plus a short sourced reading list. Every citation is peer-reviewed and links to its verified source. Nothing here is a Chronic Trace performance claim.

Original writing

In our own voice. 

The science is in the citations below. The thinking is here. Our own field comparisons and analysis, with more essays added as we write them.

Phone cameras as clinical instruments

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 eye tracking, postural control, and heart rate via rPPG, the signals a camera-based platform draws from. The bottleneck moved off the hardware and onto the software.

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.