Neurobehavioral performance of low-birthweight infants at 40 weeks conceptional age: comparison with normal fullterm infants

Dev Med Child Neurol. 1979 Oct;21(5):590-607. doi: 10.1111/j.1469-8749.1979.tb01674.x.


This study compares the neurobehavioral status of 118 low-birthweight infants tested at 40 weeks conceptional age with that of 76 normal fullterm infants. A neonatal neurobehavioral examination comprising 21 test and four summary items was used. The most striking differences between the groups were found in visual and auditory orienting, with approximately two-thirds of the low-birthweight infants falling below the range of performance of the fullterm group. Items testing motor performance showed a lower incidence of deviant performance among the low-birthweight infants. Of the 21 test items, 19 could be assigned cut-off scores, below which infants can be considered deviant on the specific items.

Publication types

  • Comparative Study

MeSH terms

  • Auditory Perception
  • Developmental Disabilities / diagnosis*
  • Eye Movements
  • Eyelids
  • Female
  • Fixation, Ocular
  • Gestational Age
  • Humans
  • Infant, Newborn
  • Infant, Small for Gestational Age*
  • Male
  • Motor Activity
  • Muscle Tonus
  • Neck
  • Orientation
  • Reflex
  • Risk
  • Rotation
  • Sucking Behavior