Response by Peter H. Wolff

Barratt B.B. (1993). Psychoanalysis and the Postmodern Impulse. Baltimore: Johns Hopkins Press.

Barratt B.B. (1984). Psychic Reality and Psychoanalytic Knowing. Hillsdale, NJ: Analytic Press.

Benjamin J.D. (1959). Prediction and psychopathological theory. In Dynamic Psychopathology in Childhood, ed. Jessner L. Pavenstedt E. . New York: Grune & Stratton, pp. 6–77.

Freud S. (1931). Letter #258, February 7, 1931, to Stefan Zweig. In Letters of Sigmund Freud, ed. Freud E. . New York: Basic Books, 1960, pp. 402–403.

Kauffman S. (1993). The Origins of Order. New York: Oxford Univ. Press.

Kauffman S. (1995). At Home in the Universe. New York: Oxford Univ. Press.

Nicoli G. Prigogine I. (1989). Exploring Complexity. New York: Freeman.

Pepper S. (1946). World Hypotheses. Berkeley: Univ. California Press.

Piaget J. (1952). The Origins of Intelligence. New York: Int. Univ. Press.

Piaget J. (1971). Biology and Knowledge. Chicago: Univ. Chicago Press.

Rapaport D. (1960). Psychoanalysis as a developmental psychology. In Perspectives in Psychological Theory, ed. Kaplan B. Wapner S. . New York: Int. Univ. Press, pp. 209–255.

Tinbergen N. (1950). A Study of Instinct. Oxford: Oxford Univ. Press.

Werner H. (1948). The Comparative Psychology of Mental Development. New York: Int. Univ. Press.

Werner H. Kaplan B. (1964). Symbol Formation. New York: Wiley.

Wolff P.H. (1987). The Development of Behavioral States and the Expression of Emotions in Early Infancy: New Proposals for Investigation. Chicago: Univ. Chicago Press.

Wolff P.H. (1988). The real and the reconstructed past. Psychoanal. & Contemp. Thought, 11:379–414.

Wolff P.H. (1993). Behavioral and emotional states in infancy: a dynamic perspective. In A Dynamic Systems Approach to Development: Applications, ed. Smith L.B. Thelen E. . Cambridge, MA: MIT Press, pp. 189–208.