Hand-rolled SVG simulators for the three CDP protocols. Every trace is synthesised from the disease archetypes via a deterministic pure-math layer, so the same archetype always produces the same shape — with mild seeded jitter per instantiation.
SOT — six-condition interactive
Pick a pattern from the dropdown to see how that disease's signature plays out across the six SOT conditions. Each condition shows the condition diagram, the synthesised anterior-posterior sway trace for the mean trial, the three trial scores, and the falls (where the trace exceeds the 12.5° limit of stability).
Condition 1
Eyes open, fixed
Trials919388
Condition 2
Eyes closed, fixed
Trials899096
Condition 3
Eyes open, sway-referenced surround
Trials908689
Condition 4
Eyes open, sway-referenced surface
Trials768889
Condition 5
Eyes closed, sway-referenced surface
Trials777375
Condition 6
Eyes open, both sway-referenced
Trials716964
Composite
83
Within age norms
SOM (C2/C1)
1.01
Normal
VIS (C4/C1)
0.93
Normal
VEST (C5/C1)
0.83
Normal
PREF
0.94
Borderline visual preference
Teaching point
Equilibrium scores trend downward as conditions become more sensorily challenging. C5 and C6 are the lowest in healthy subjects but remain above device norms. The composite score sits comfortably above the age-matched lower limit.
MCT and ADT figures
Companion figures for the other two CDP protocols. The MCT trace shows the platform-translation onset, the latency band, and the patient's postural response amplitude. The ADT figure shows sway energy across five trials, with the adaptation curve overlaid — a downward trend is normal central adaptation.
SOT pattern vs normalMCT — medium-amplitude backward translationMCT — medium-amplitude forward translationADT — sway energy across five trials per direction