title: The association between infants' self-regulatory behavior and MAOA gene polymorphism.
abstract: Self-regulatory behavior in early childhood is an important characteristic that has considerable implications for the development of adaptive and maladaptive functioning. The present study investigated the relations between a functional polymorphism in the upstream region of monoamine oxidase A gene (MAOA) and self-regulatory behavior in a sample of Chinese infants at 6 months of age. Self-regulation was assessed by observing infants' behavior of orienting visual attention away from a threatening event in the laboratory situation. The results indicated that regulatory behavior was associated with the functional MAOA gene polymorphism in girls, but not boys. Girls with 4/4 genotypes displayed significantly higher regulation than girls with 3/3 and 3/4 genotypes. The present study provided evidence for gender differences on the role of MAOA gene polymorphism in socioemotional functioning in the early years.
authors: School of Education, Linyi University, China.
authors: Minghao
authors: M
authors: Zhang
authors: Xinyin
authors: X
authors: Chen
authors: Niobe
authors: N
authors: Way
authors: Hirokazu
authors: H
authors: Yoshikawa
authors: Huihua
authors: H
authors: Deng
authors: Xiaoyan
authors: X
authors: Ke
authors: Weiwei
authors: W
authors: Yu
authors: Ping
authors: P
authors: Chen
authors: Chuan
authors: C
authors: He
authors: Xia
authors: X
authors: Chi
authors: Zuhong
authors: Z
authors: Lu
mesh_terms: D001288:Attention; D001483:Base Sequence; D002681:China; D005260:Female; D005838:Genotype; D006801:Humans; D007223:Infant; D018730:Infant Behavior; D008297:Male; D008995:Monoamine Oxidase / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide; D017422:Sequence Analysis, DNA; D012737:Sex Factors; D012927:Social Control, Informal
chemical_list: D008995:Monoamine Oxidase