What is the Moro reflex?

The Moro reflex, also known as the startle reflex, is a primitive reflex observed in infants. It occurs when a baby experiences a sudden loss of support, such as being released or when there is a loud sound or a sudden movement. The typical response includes the baby spreading their arms out, pulling them back in, and often crying. This reflex is important as it demonstrates the infant's nervous system development and their reaction to perceived threats or stimuli in their environment.

Responses to touching on the cheek, bright lights, or smiling in response to seeing a face pertain to other reflexes or social behaviors rather than the Moro reflex. The Moro reflex specifically highlights the infant's instinctive reaction to startling stimuli, showcasing their early ability to respond to environmental changes.