Primitive reflex profile: a quantitation of primitive reflexes in infancy.

This report describes quantitative standardization data on nine primitive reflexes for a cohort of 381 normal infants evaluated longitudinally at each visit between birth and two years of age. Normality was confirmed by the use of the Bayley Scales of Infant Development at one year of age. The standardization of this new examination technique complements the traditional infant neurological examination and may allow primitive reflexes to become a useful adjunct to the prediction of motor disability in early infancy.