Nancy L. Segal, Ph.D.

Social and Behavioral Sciences and Public Service​
2016 Wang Family Excellence Award Winner

Dr. Nancy L. Segal, CSU Fullerton

​Upon her arrival in 1991 at California State University, Fullerton, Nancy L. Segal, Ph.D., founded the Twin Studies Center with the dual mission of fostering twin research by faculty and students and providing information and support to interested individuals.

As a professor of developmental psychology, Dr. Segal’s interests lie at the juncture of genetics, evolutionary psychology and twin studies. In addition to lecturing, mentoring, publishing and presenting, she uses her research to inform twin-based legal cases, to provide input to the media, and to assist authors and artists in creative endeavors.

Segal was awarded the 2013 William James Book Award for her work, Born Together—Reared Apart: The Landmark Minnesota Twin Study, which summarized the origins, methods, findings and controversies of a pivotal project on separated twins. She also set a new Guinness world record for reuniting twins who had been apart for 78 years. Most recently, her participation as a researcher and interviewee in the 2015 film “Twinsters” helped shape the documentary into a highly informative memoir of reunited twin sisters.

Segal earned a Ph.D. and M.A. from the University of Chicago and a B.A. from Boston University.