Dopamine D4 receptor and serotonin transporter promoter in the determination of neonatal temperament. Academic Article uri icon

abstract

  • Genetic effects on behavior were evaluated at a time in early development when we hypothesized that environmental influences are minimal and least likely to confound associations between temperament and genes. The behavioral effects of two common polymorphisms linked respectively in some, but not all, studies to novelty seeking (dopamine D4 receptor–D4DR) and neuroticism and harm avoidance (serotonin transporter promoter region–STPR) were examined in a group of 81 two-week-old neonates. Neonate temperament was evaluated using the Brazelton neonatal assessment scale (NBAS). Multivariate tests of significance showed a significant association of D4DR across four behavioral clusters pertinent to temperament including orientation, motor organization, range of state and regulation of state. A significant multivariate interaction was also …

publication date

  • January 1, 1998