Development in Infants
Newborns often exhibit smiles within the first three days of their lives, especially while sleeping. However these early smiles are spontaneous and are not a response to outside stimulation. These early smiles are referred to as "reflex smiles." Between 6 and 8 weeks, most babies begin to exhibit "social smiles", meaning the baby will smile at his/her caregivers or in response to stimuli. Most babies laugh between 3 and 4 months.
Read more about this topic: Smile
Famous quotes containing the words development and/or infants:
“Sleep hath its own world,
And a wide realm of wild reality.
And dreams in their development have breath,
And tears, and tortures, and the touch of joy.”
—George Gordon Noel Byron (1788–1824)
“But O, young beauty of the woods,
Whom Nature courts with fruits and flowers,
Gather the flowers, but spare the buds;
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Nip in the blossom all our hopes and thee.”
—Andrew Marvell (1621–1678)