disentrainment

noun3

1. •
   The act or process of falling out of entrainment; precipitation form a flow or current.
2. •
   The disruption of patterns of brain activity.

   • Within minutes of the first AED treatment (diazepam in the first patient and fospheytoin in the second patient), signs of disentrainment of the brain dynamics were observed in both patients. — 2010
3. •
   Disruption of the natural alignment of circadian rhythms with the natural environment

   • In contrast, during disentrainment mean REM period duration remained essentially constant across all REM periods recorded during nocturnal sleep episodes — 1987