Effects of 2,3,7,8-tetrachlorodibenzo-p-dioxin on behavior of monkeys in peer groups

Susan L. Schantz, Sherry A. Ferguson, Robert E. Bowman

Research output: Contribution to journalArticlepeer-review

Abstract

Adult female rhesus monkeys were fed diets containing 0, 5, or 25 ppt 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) for approximately 4 years. They were bred to unexposed males during TCDD exposure (Experiment 1) and again after TCDD exposure ended (Experiment 2). Offspring from both experiments were weaned at 4 months and socialized for 1.5 h/day in groups of four monkeys each beginning at approximately 8 months of age. Each social group contained both control and TCDD-exposed monkeys. In Experiment 2, the offspring were later placed in new social groups containing only monkeys from the same TCDD exposure condition. The TCDD-exposed offspring born concurrent with maternal TCDD exposure (Experiment 1) initiated more rough-tumble play, retreated less during play bouts, and were less often displaced from preferred positions in the playroom. They also engaged in more self-directed behaviors. The behavior of offspring born after maternal TCDD exposure ended (Experiment 2) was not altered when they were socialized with control monkeys. However, some behavioral changes did emerge when they were placed in social groups containing only TCDD-exposed monkeys.

Original languageEnglish (US)
Pages (from-to)433-446
Number of pages14
JournalNeurotoxicology and Teratology
Volume14
Issue number6
DOIs
StatePublished - Jan 1 1992

Keywords

  • 2,3,7,8-tetrachlorodibenzo-p-dioxin
  • Monkey
  • Peer group social behavior
  • Perinatal exposure
  • TCDD

ASJC Scopus subject areas

  • Toxicology
  • Developmental Neuroscience
  • Cellular and Molecular Neuroscience

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