About the Members


Current Members (l to r): Alexander Morgan, Kareln Lyons-Ruth, Jeremy Nahum, Nadia Bruschweiler-Stern, Bruce Reis

Nadia Bruschweiler-Stern, M. D.

Dr. Bruschweiler-Stern is a developmental pediatrician and child psychiatrist in Geneva, Switzerland. She is the founder and director of the Brazelton Center, Switzerland. She is co-author with Daniel Stern of "Birth of a Mother."

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Karlen Lyons-Ruth, Ph.D.

Dr Lyons-Ruth is a Professor of Psychiatry at Harvard Medical School and a supervising psychologist at the Cambridge Hospital. She is the principal investigator of the Family Pathways Project, an NIH-funded longitudinal study from infancy to adolescence of children at social risk. Her research group is currently examining both genetic and caregiving influences on the developmental pathways leading to psychopathology and dissociative processes in adolescence. Her research publications have focused on the contribution of early risk factors, including maternal depression and infant attachment disorganization, to later psychopathology. Her clinical publications have proposed reorientations in psychodynamic developmental theory based on the emerging body of developmental research findings. She also serves on the faculty of the Massachusetts Institute of Psychoanalysis, is an Affiliate Scholar of the Boston Psychoanalytic Institute, and maintains a private practice in Cambridge, Massachusetts.

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Alexander C. Morgan, M.D.

Dr. Morgan is a practicing adult analyst in Boston, a faculty member of the Boston Psychoanalytic Institute and the Massachusetts Institute of Psychoanalysis, as well as an Assistant Clinical Professor in the Cambridge Hospital Department of Psychiatry, Harvard Medical School. His interests have included work across the life span, and the work of applying early developmental findings to the process of adult therapy and psychoanalysis, which has been central to his mode of thinking.

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Jeremy P. Nahum, M.D.

Dr. Nahum is a practicing psychoanalyst, psychotherapist, and couples therapist in Cambridge, Massachusetts. He has taught in the development sequence at both the Massachusetts Institute for Psychoanalysis and the Boston Psychoanalytic Institute. He was part of the Psychotherapy Research Program at Massachusetts General Hospital. He is a psychiatric consultant to the Family Pathways Project at the Cambridge Health Alliance.  Dr. Nahum is available for diagnostic evaluation, consultation, supervision, and treatment of individuals and couples.

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Bruce Reis, Ph.D.

Dr. Reis is a Clinical Assistant Professor in the New York University Postdoctoral Program in Psychotherapy and Psychoanalysis, and a visiting faculty member at several psychoanalytic institutes around the United States. In addition to practicing full time in Manhattan, Dr. Reis serves on the editorial boards of numerous psychoanalytic journals, including the International Journal of Psychoanalysis and Psychoanalytic Dialogues, and lectures nationally and internationally. His interests include the intersection of phenomenological philosophy with psychoanalytic clinical theory. Doctor Reis joined the group in 2010. 

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Drs. Lyons-Ruth, Morgan, and Nahum are available for consultation, evaluation, supervision, and treatment (psychoanalysis, individual and couples) in the greater Boston area, Dr Reis in New York City. Dr Lyons-Ruth is also available for infant evaluation. Dr. Bruschweiler-Stern is available for parent-infant consultation, evaluation, supervision, and treatment in Geneva, Switzerland.

Originally, Alexandra Harrison, M.D., a child and adult analyst in Boston, and Edward Z. Tronick, Ph.D, chief of Child Development Unit, Childrens Hospital and Medical Center, Boston, and Associate Professor of Psychology in Department of Pediatrics, Harvard Medical School, were members of the BCPSG. They left the BCPSG in 2002.

Deceased Members

Louis W. Sander M.D.

Dr. Sander died November 28, 2012. He was Emeritus Professor of Psychiatry, Boston University, School of Medicine and University of Colorado. He authored numerous seminal papers in the infancy research literature, and was as well the former director of the Boston University Longitudinal Project.  His work has had a profound influence on the entire field of psychoanalytic infancy research, and his papers have been collected into volumes published in German and Italian, as well as in English.

Daniel N. Stern, M.D.

Dr. Stern died November 13, 2012. He was Professeur Honoraire in the Faculté de Psychologie, Université de Genève, Switzerland; Adjunct Professor in the Department of Psychiatry, Cornell University Medical School - New York Hospital; and Lecturer at the Columbia University Center for Psychoanalysis.

For more than thirty years he had worked at the interface between research and practice; between developmental psychology and psychodynamic psychotherapy; between infant observation/experimentation and the clinical reconstruction of early experience; between the interpersonal and intrapsychic perspectives. This work has served a bridging and integrating function in furthering our understanding of clinical theory, practice, and development.

Dr. Stern authored six books, most of which have been translated into more than ten languages: The First Relationship: infant and mother, (Harvard University Press, 1977); The Interpersonal World of the Infant: A view from psychoanalysis and developmental psychology, (Basic Books, 1985); The Journal of a Baby, (Basic Books, 1990); The Motherhood Constellation: a unifying view of parent-infant psychotherapies. (Basic Books, 1995); The Birth of a Mother, (written with Nadia Bruschweiler-Stern, Basic Books, 1997.) and The Present Moment in Psychotherapy and Everyday Life, (2003), W.W. Norton and Odile Jacob. He is the author of several hundred journal articles and chapters.

members on a mountain top

Left to right: Daniel Stern, Alexander Morgan, Nadia Bruschweiler-Stern, Louis Sander, Jeremy Nahum, Karlen Lyon-s Ruth.

members sitting at a table