More about the Moro reflex: your baby's 'startle' response
The Moro reflex (so called because it was first described by physician Ernst Moro in 1918)
is one of our primitive reflexes – these are responses to stimuli that we develop before we are born. The reflexes are controlled by the primitive part of our brain and, as your baby develops and more connections are made in their brain, these reflexes become integrated, and you will see their judgement of danger manifest itself in different reactions.[1]