‌The STNR reflex helps your infant learn to move the top half and the bottom half of their body independently from each other. The symmetric tonic neck reflex is commonly referred to as the ...

Learn about your baby’s symmetric tonic neck reflex (STNR), including its relationship with other primitive reflexes, including TLR and ATNR.

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 ...