The Moro Reflex
The Moro reflex, also known as the startle reflex, is a primitive reflex that is commonly observed in newborn babies. It is an involuntary response triggered by a sudden change in the baby's position or a loud noise, causing the baby to react with a specific set of movements.
Characteristics of the Moro Reflex:
Sudden Movement or Noise: The Moro reflex is typically triggered by a sudden movement of the baby's head or a loud noise that startles the baby.
Extension and Abduction: In response to the stimulus, the baby will extend their arms and legs away from their body, arch their back, and spread their fingers. This is often accompanied by a brief moment of crying or fussiness.
Followed by Contraction: After the initial extension, the baby will then bring their arms and legs back toward their body in a hugging motion.
Eye Movement: During the Moro reflex, the baby may also open their eyes wide and briefly hold their breath before resuming normal breathing.
Disappearance: The Moro reflex typically diminishes and disappears by the time the baby reaches 3 to 6 months of age as the nervous system matures.
Purpose of the Moro Reflex:
The Moro reflex is believed to have evolutionary significance, serving as a protective mechanism for newborn babies. It may have helped infants cling to their caregiver or to grab onto branches when being carried in ancestral environments. Additionally, the startle response may have alerted caregivers to potential dangers, prompting them to provide comfort and protection to the baby.
Importance of the Moro Reflex in Development:
The Moro reflex is one of several primitive reflexes that newborn babies exhibit. These reflexes are involuntary movements that are controlled by the brainstem and spinal cord and are present at birth. While the Moro reflex typically disappears within a few months, its presence in newborns is an indicator of normal neurological development.
Overall, the Moro reflex is a natural and common response observed in newborn babies, serving as an important part of early neurological development.
Sources:
MedlinePlus. (2021). Infantile reflexes. https://medlineplus.gov/ency/article/003294.htm
HealthyChildren.org. (2021). Infant Reflexes. https://www.healthychildren.org/English/ages-stages/baby/Pages/Infant-Reflexes.aspx
The content presented on Labour the App (whether text, graphics, images, or other material) is provided “as is” and is offered for informational purposes only. The content provided on the App is not intended to be a substitute for professional medical advice, diagnosis, or treatment. You should always seek the advice of your physician or other qualified health provider. For more information, please refer to our Medical Disclaimer and to our Terms of Use.