Newborn Reflexes: Baby’s Natural Responses
It's fascinating how newborns come into the world with a set of automatic reflexes. Automatic reflexes are involuntary, rapid responses to stimuli that help protect the body. These involuntary movements are essential for their survival and development. Here's a breakdown of some key reflexes you may witness in your new baby.
Rooting Reflex
When you gently stroke a baby's cheek or the corner of their mouth, they'll turn their head in that direction, opening their mouth.
This helps them find a nipple or bottle for feeding.
This reflex typically disappears around 4 months of age.
Purpose: this reflex is fundamental for feeding and helps the baby locate a food source (nipple or bottle).
Sucking Reflex
When the roof of a baby's mouth is touched, they'll begin to suck.
This works in tandem with the rooting reflex to ensure successful feeding.
This reflex also typically fades around 4 months.
Purpose: enables babies to extract milk, whether it’s from a breast or a bottle. Essential for ensuring that the newborn receives the necessary nutrition for survival.
Moro Reflex aka Startle Reflex
If a baby is startled by a loud noise or sudden movement, they'll throw their head back, extend their arms and legs, cry, and then pull their arms and legs back in.
This is a protective reflex.
It usually disappears by 2 months of age.
Purpose: this reflex is believed to be a protective mechanism. It's a response to a perceived threat, such as a sudden noise or loss of support.
Tonic Neck Reflex aka Fencing Reflex
When a baby's head is turned to one side, the arm on that side will extend, and the opposite arm will bend.
This looks like a "fencing" position.
This reflex typically disappears between 5 and 7 months.
Purpose: the purpose of this reflex is not fully understood. Some theories suggest it may contribute to the development of hand-eye coordination
Grasp Reflex
If you place a finger in a baby's palm, they'll grasp it tightly.
This reflex is quite strong.
It generally fades around 5 to 6 months.
Purpose: while its exact purpose is debated, the grasp reflex likely served an evolutionary role in helping infants hold onto their caregivers. It also plays a role in developing the baby's hand muscles.
Babinski Reflex
When the sole of a baby's foot is stroked, their big toe will bend upward, and the other toes will fan out.
This is normal in infants and usually disappears by 1 to 2 years of age.
Purpose: this reflex is a sign of a healthy nervous system in newborns. Its disappearance later in infancy indicates the maturation of the nervous system.
Stepping Reflex
If you hold a baby upright with their feet touching a solid surface, they'll appear to take steps or "dance."
This reflex disappears around 2 months of age.
Purpose: while it appears as if the baby is trying to walk, this reflex isn't true walking. It's thought to contribute to the development of leg muscles and coordination. Some researchers also believe that it could have a connection to the development of later walking.