孕用小于33周的早产儿具有较高的神经认知缺陷的危险性，8岁前，他们的神经发育结果可通过新生儿期超声波估测出来，但对他们8岁后的神经功能知之甚少。研究者调查了早产对成年后大脑结构、神经认知及行为功能的影响。方法：在1979～1980年间孕33周以前出生的105名新生儿期曾在 Preterm infants less than 33 weeks of gestation have a high risk of neurocognitive deficits, and their neurodevelopmental outcome can be estimated by neonatal ultrasound until age 8, but much is known about their neurological function after 8 years of age less. The researchers investigated the impact of preterm birth on adult brain structure, neurocognitive and behavioral functions. Methods: 105 newborns born before 33 weeks of gestation from 1979 to 1980 were present