A–Z Glossary

Sucking reflex

The sucking reflex causes rhythmic sucking when an infant’s palate or nipple is touched, supporting early feeding.

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Newborn Reflexes and What They Reveal About Development

Newborn Reflexes and What They Reveal About Development

What newborn reflexes are A reflex is a rapid, involuntary response to a stimulus. In newborns, many responses are called primitive reflexes because they are generated largely through lower or subcortical neural circuits before the cerebral cortex has developed the capacity for sustained voluntary motor control. These circuits include pathways in the brainstem and spinal […]

Primitive Reflexes: When They Appear and Fade

Primitive Reflexes: When They Appear and Fade

What primitive reflexes are Primitive reflexes are stereotyped, involuntary motor responses to particular stimuli. They are mediated largely by the brainstem and spinal cord, although their expression also depends on muscle tone, sensory input, arousal state, and the integrity of higher motor pathways. In a healthy newborn, these responses support survival and early interaction: rooting […]