The STNR is a primitive reflex that is characterized by upper extremity (UE) extension and lower extremity (LE) flexion with neck extension, and by UE flexion and LE extension with neck flexion.
The asymmetrical tonic neck reflex (ATNR) is a primitive reflex found in newborn humans, but normally vanishes around six months of age. When the face is turned to one side, the arm and leg on the ...
Asymmetric tonic neck reflex, or ATNR, is one of the primitive reflexes that babies experience as part of brain development. These reflexes are crucial because they help your baby to survive and ...