Answer :
The term for the reflex that disappears around 8-12 months and occurs when an infant fans out its toes in response to a stroke on the outside of its foot is known as the Babinski reflex.
The Babinski reflex is a normal response seen in newborns and infants. When the sole of the foot is firmly stroked from the heel towards the toes, the toes of a newborn or young infant will naturally splay outwards or extend, with the big toe pointing upward. This reflex is also accompanied by a fanning movement of the other toes. The Babinski reflex is a result of the immaturity of the nervous system in early infancy. It is considered a normal and expected reflex in infants up to a certain age. However, as the nervous system develops and the myelination of the nerve pathways progresses, the Babinski reflex gradually disappears, typically by 8-12 months of age.The disappearance of the Babinski reflex is a sign of proper neurological development in infants. As the corticospinal pathways in the brain and spinal cord mature, the reflex is integrated and replaced by more controlled and purposeful movements of the toes and feet.
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