The concept of behavioral inhibition / Jerome Kagan
Individual differences in childhood shyness : distinguishing fearful and self-conscious shyness / W. Raymond Crozier
Attachment, temperament, and adrenocortical function in infancy / Kathy Stansbury
Conceptual, biological, and behavioral distinctions among different categories of shy children / Louis A. Schmidt & Nathan A. Fox
Behavioral inhibition and the emotional circuitry of the brain : stability and plasticity during the early childhood years / Richard J. Davidson & Maureen Rickman
Commentary : temperament, fear, and shyness / Mary K. Rothbart
Neural mechanisms and the development of individual differences in behavioral inhibition / Lorey K. Takahashi & Ned H. Kalin
The neural circuits that underlie fear / Karim Nader & Joseph LeDoux
Neuroendocrine regulation of fear and anxiety / Jay Schulkin & Jeffrey B. Rosens
Lifelong effects of hormones on brain development : relationship to health and disease / Bruce S. McEwen
Commentary : the inhibited child "syndrome" : thoughts on its potential pathogenesis and sequelae / George P. Chrousos & Philip W. Gold
The natural course of shyness and related syndromes / Deborah C. Beidel & Samuel M. Turner
Varieties of shyness in adolescence and adulthood / Jonathan M. Cheek & Elena N. Krasnoperova
High sensitivity as one source of fearfulness and shyness : preliminary research and clinical implications / Elaine N. Aron
Extreme fear, shyness, and social phobia : treatment and intervention / Franklin R. Schneier
Commentary : developmental outcomes and clinical perspectives / Lynne Henderson & Philip G. Zimbardo.