Theory

Polyvagal Theory

Polyvagal theory is a framework that relates autonomic nervous system states to safety cues, social engagement, and defensive responses. It is frequently referenced in discussions of stress, trauma, and co-regulation.

Key concepts

  • Autonomic state shifts and adaptive responding
  • Social engagement and cues of safety
  • Co-regulation and relational nervous system dynamics
  • Threat detection and defensive mobilization
  • Language precision: what is supported vs hypothesized
  • Application in trauma-informed contexts
  • Ongoing debate and interpretation in the literature