ABSTRACT:Research is equivocal concerning the relationship between parental psychological distress and infant cognitive functioning. Four potential limitations of the literature are addressed: reliance on mothers' but not fathers' psychological distress, use of categorical measures of psychological distress, use of standardized measures of infant cognitive functioning, and failure to take into account potential gender differences. Ninety-nine twin pairs and both their mothers and fathers were assessed. Infants cognitive functioning was assessed using an infant-controlled habituation-recovery-dishabituation task. Maternal and paternal psychological distress was assessed using the Symptom Check List-90-Revised. No gender differences were obtained for infant visual information-processing abilities or parental psychological distress. Maternal and paternal psychological distress was related to female visual encoding abilities only. It was concluded that parental psychological distress might degrade parent-infant interactions. Characteristics of girls when faced with parents exhibiting psychiatric difficulties may exacerbate difficulties of parent-infant interactions, thereby hindering the full development of cognitive abilities involved in the process of habituation. A need exists to examine the relationship between parental psychological distress and infant visual attention separately for girls and boys.The research reported here and the preparation of this manuscript were supported by operating grants from the National Health Research and Development Program of Canada (DP), the Medical Research Council of Canada (DP), the Social Sciences and Humanities Research Council of Canada (DP MB), the Fonds de la recherche en santé du Québec-Conseil québecois de la recherche sociale (DP/RET, MB/DP), the Fonds pour la formation de chercheurs et l'aide à la recherche (DP), a Medical Research Council of Canada postdoctoral fellowship (DPL), and infrastructure grants from the Canadian Institute of Advanced Research, the Fonds de la recherche en santé du Québec, the Fonds pour la formation de chercheurs et l'aide à la recherche, the Molson Foundation, the Social Sciences and Humanities Research Council of Canada, and the University of Montreal.We are much indebted to the two anonymous reviewers for their extremely helpful comments on earlier versions of this manuscript. We would like to thank Monica Tremblay for overseeing the daily activities of the laboratory, and to the many research assistants for diligent efforts in collecting the data. A special thanks is extended to Mark Gross of Hiloma Software Development, Inc. for creating the computer programs used to conduct the procedure and score the behavioral data. Finally, we thank all families who continue to take part in this ongoing study.
• D.P. Laplante et al.RESUMEN: La investigación es equívoca en lo que respecta a la relación entre la angustia sicológica de los padres y el funcionamiento cognitivo del infante. Cuatro posibles limitaciones de la literatura respectiva se co...