ATNR (Retained Primitive Reflexes)
The ATNR (Asymmetrical Tonic Neck Reflex) is a developmental reflex that helps infants build early hand–eye coordination. When retained beyond infancy, it can affect posture, midline stability, handwriting endurance, coordination, and focus. This article explains the signs of retained ATNR in children and adults—and how nervous system-focused chiropractic care can support improved motor control and learning efficiency.