1. American Psychiatric Association. (1996). Diagnostic statistical manual of mental disorders (5th ed.). Washington, DC: Author.
2. Infants’ sensitivity to imperfect contingency in social interaction;Bigelow,1999
3. Classical conditioning in newborn humans 2–48h of age;Blass;Infant Behavior and Development,1984
4. Brennan, P., Calhoun, K., Walker, E., & Stowe, Z. (2002, April). Maternal psychopathology and infant cortisol levels. Paper presented at the International conference on Infant Studies. Toronto.
5. Effect of contingent changes in mothers’ affective expression on the organization of behavior in 3-month-old infants;Cohn;Infant Behavior and Development,1988