Question

How long does the Babinski reflex last?

a) Until 6 months
b) Until 12 months
c) Until 18 months
d) Until 24 months

Answer 1

The Babinski reflex typically disappears by the time a child reaches 12 months of age, and its presence in adults may indicate neurological issues.

Step-by-step explanation:

The Babinski reflex is a neuromotor response observed in infants when the sole of the foot is lightly scratched, leading to dorsiflexion of the foot with extension and splaying of the toes. This reflex is typically present at birth and should be suppressed by corticospinal input as the child matures. The Babinski reflex usually disappears by around 12 months of age, making option (b) Until 12 months the correct answer. This reflex being present in adults can indicate neurological problems such as reduced myelination of the spinal tract, which is why it may be a concern if observed in individuals past infancy.