APFIVE Infant Reflex Persistence and Development
A study examining infant reflexes tracked 150 newborns over their first year. At birth, 100% showed the rooting reflex, which declined to 5% by 4 months. The palmar grasp was present in 98% at birth, declining to 2% by 6 months. The Moro reflex was present in 99% at birth but persisted in 15% of infants at 6 months. By 12 months, which pattern would most concern developmental psychologists?
A
Disappearance of the rooting reflex
B
Persistence of the Moro reflex
C
Loss of the palmar grasp
D
Variation in reflex strength
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