Which reflex is the first to disappear in neonates?

The rooting reflex is the first to disappear in neonates, generally by around 4 months of age. This reflex is essential in newborns, as it helps them locate and latch onto a mother's breast for feeding. When the corner of a baby's mouth is stroked or touched, the infant turns their head toward the stimulus and opens their mouth to suck. While this reflex is crucial for feeding right after birth, it gradually fades as the infant matures and develops more voluntary control over their movements.

In contrast, the palmar reflex, where an infant will grasp an object placed in their palm, typically lasts until about 5-6 months. The Moro reflex, or startle reflex, fades around 4-6 months as well, while the walking reflex, characterized by stepping motions when the soles of the feet touch a flat surface, usually remains until 3-4 months. This developmental dynamic shows the progression from innate reflexes to coordinated voluntary movements as infants grow.