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Rumble Detection Physiology

Definition

Rumble is the precursor phase to a meltdown — elevated arousal before the crisis threshold is crossed. Rumble Prediction IS Meltdown Prediction (they are not separate concepts).

Physiological Markers

Signal Rumble Meltdown
HR 105-129 bpm (rising) 130-180 bpm (sustained)
HRV (RMSSD) <25 ms, declining <10 ms
EDA Elevated, increasing SCR frequency Saturated, chaotic
Slope 5-15 bpm/min Plateau
Recovery Possible with intervention >20 min required

Detection Windows

  • 5s window: Instantaneous detection for real-time alerting
  • 30s window: Rumble detection — rolling mean features
  • 300s window: Trend analysis for state classification

Prediction Horizon

  • Goodwin: 1 min before aggression (AUC 0.84 person-dependent)
  • Imbiriba: 3 min before SIB/ED/ATO (AUC 0.80)
  • REACT: 20s before agitation (F1 68.20%)

Linked To