How to sign: extension upward of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front; normal in infants under the age of two years but a sign of brain or spinal cord injury in older persons
Similiar / Same: Babinski, Babinski sign
Categories: inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, unconditioned reflex