DUDT Nervous System Chart
The PDF is an educational handout from Down Under Dog Trainer that explains the three primary autonomic nervous system states dogs experience: Ventral Vagal (Safe & Social), Sympathetic (Fight or Flight), and Dorsal Vagal (Freeze & Shutdown). For each state it lists the associated nervous‑system branch, how the dog feels, observable body signs, typical behaviours, and practical calming or intervention strategies. The chart also includes a simple arousal‑level indicator (low for Ventral and Dorsal Vagal, high for Sympathetic). The purpose is to help dog owners and trainers recognize a dog’s internal state and respond with appropriate, humane techniques to support regulation and learning.
Topics
Overview of the Three Autonomic States in Dogs
Introduces the three nervous‑system states—Ventral Vagal, Sympathetic, Dorsal Vagal—along with their arousal levels and the overarching framework of the Social Engagement, Mobilisation, and Immobilisation systems.