1. Ainsworth, M. D. S., Bell, S. M., & Stayton, D. J. Infant-mother attachment and social development: Socialization as a product of reciprocal responsiveness to signals. In M. P. M. Richards (Ed.), The integration of a child into a social world. Cambridge, England: Cambridge University Press, 1974.
2. Argyle, M. Social interaction. Chicago: Aldine, 1969.
3. Bateson, G., Jackson, D., Haley, J., & Weakland, J. Toward a theory of schizophrenia. Behavioral Science, 1956, 1, 251–264.
4. Berman, H. J., Shulman, A. D., & Marwit, S. J. Comparison of multidimensional decoding of affect from audio, video, and audiovideo recordings. Sociometry, 1976, 39, 83–89.
5. Blanck, P. D., Rosenthal, R., Snodgrass, S. E., DePaulo, B. M., & Zuckerman, M. Longitudinal and cross-sectional age effects in nonverbal decoding skills and style. Developmental Psychology, 1982, 18, 491–498.