摘要: Heredity plays a larger role in shyness than other personality traits infancy (Plomin & Rowe, 1979), early childhood 1977), middle (O’Connor, Foch, Sherry, Plomin, 1980), adolescence (Cheek Zonderman, 1983), and adulthood (Horn, Rosenman, 1976). The purpose of this chapter is to review evidence concerning the etiology individual differences consider conceptual clinical implications findings that indicate genetic influence.