<prompt> The reflex shown here is:Tendon reflexAbdominal reflexLandau reflexAsymmetrical tonic neck reflex ATNR  <response>: Its a normal reflex observed in children between the age of 3 and 12 months: When the child is supported horizontally in the prone position, the head rises and the back arches. Absence of the reflex is a sign of a neurological disorder, such as cerebral palsy or motor neuron disease. 