Here's all about your newborn's tonic neck reflex, including its purpose, when it starts and stops, how to look for it, and why it's also known as the fencing reflex.

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

The symmetric tonic neck reflex (STNR) is a reflex that normally appears during your baby’s first year. It typically begins to diminish by the time they reach 9 to 10 months.

This reflex lasts for only the first 2 months. Tonic neck reflex. The tonic neck reflex is sometimes called the fencing position because the baby holds their arms in a position like they’re fencing.

Once your baby strikes this position, you'll see why it's also called the "fencing reflex." (Experts call it the asymmetrical ...

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 ...

The asymmetrical tonic neck reflex (ATNR) is a primitive reflex found in newborn humans, but normally vanishes around six months of age. ... ADVERTISEMENT. It is also known as the "fencing reflex" ...