Genetic and environmental influences on human psychological differences

Thomas J. Bouchard, Matt Mc Gue

Research output: Contribution to journalReview article

505 Scopus citations

Abstract

Psychological researchers typically distinguish five major domains of individual differences in human behavior: cognitive abilities, personality, social attitudes, psychological interests, and psychopathology (Lubinski, 2000). In this article we: discuss a number of methodological errors commonly found in research on human individual differences; introduce a broad framework for interpreting findings from contemporary behavioral genetic studies; briefly outline the basic quantitative methods used in human behavioral genetic research; review the major criticisms of behavior genetic designs, with particular emphasis on the twin and adoption methods; describe the major or dominant theoretical scheme in each domain; and review behavioral genetic findings in all five domains. We conclude that there is now strong evidence that virtually all individual psychological differences, when reliably measured, are moderately to substantially heritable.

Original languageEnglish (US)
Pages (from-to)4-45
Number of pages42
JournalJournal of Neurobiology
Volume54
Issue number1
DOIs
StatePublished - Jan 1 2003

Keywords

  • Adoption
  • Attitudes
  • Behavior genetics
  • Cognitive abilities
  • Genetics
  • Heritability
  • Personality
  • Psychological interests
  • Psychopathology
  • Twins

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