A–Z Glossary

Rooting reflex

The rooting reflex is a baby’s instinctive turning and searching movement toward touch near the cheek or mouth.

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Hunger or Discomfort: Why a Newborn Wakes Up

Hunger or Discomfort: Why a Newborn Wakes Up

Why Newborns Wake So Often Newborn sleep is organized differently from adult sleep. Infants move through relatively short sleep periods and spend substantial time in active sleep, a state that may include facial movements, irregular breathing, brief vocalizations, and limb activity. These behaviors can look like waking even when the baby is not fully awake. […]

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 […]

Baby feeding cues explained

Baby feeding cues explained

What feeding cues are and why they matter Feeding cues are observable behavioral and physiologic signals that may indicate a baby wants to feed, is preparing to feed, or is becoming satisfied. They are part of an infant’s communication repertoire, not a rigid schedule. A baby may signal hunger through movements, facial expressions, vocalizations, or […]

Early hunger cues vs late hunger cues

Early hunger cues vs late hunger cues

What hunger cues mean Hunger cues are observable behaviors that may indicate a baby is becoming ready to feed. They reflect a changing internal state, including appetite, arousal, and readiness to coordinate sucking, swallowing, and breathing. They are not a precise measurement of how much milk a baby needs, and a single behavior does not […]