胎龄在37周以前出生的活产婴儿称为早产儿或未成熟儿(premature infant)。其出生体重大部分在2500 g以下,头围在33 cm以下。过早离开母体的早产儿,神经系统发育不成熟,有认知和行为缺陷等表现,严重影响了早产儿生后脑的正常发育,早产儿出生后免疫系统也发生障碍,因此干预早产儿的后天发育显得十分必要。现对目前有关早期干预的研究做一综述。 Live births born before 37 weeks of gestation are called premature or premature infants. Most of its birth weight below 2500 g, head circumference below 33 cm. Premature infants who leave their mothers prematurely have immature neurological development, cognitive and behavioral deficits, which seriously affect the normal development of the brain after prenatal and postnatal periods. Immune systems in preterm infants are also impaired, so intervention in preterm infants Development is very necessary. The current research on early intervention is reviewed.