Baby - Asymmetric Tonic Neck Reflex (ATNR)

Baby girl 3½ weeks old. Baby’s lying on their backs often turn their head to one side or the other. The limbs on the side toward which the head turns (ipsilateral extremities) will straighten (extend), and the opposite limbs(contralateral extremities) bend (flex), the so-called ’fencing posture’. The movement is most evident in the arms but may also be observed in the legs. By turning the head to the opposite side, the extension and contraction of the limbs often change accordingly. The reflex may stimulate