Career
Segal is the professor of developmental psychology and director of the Twin Studies Center,at California State University,Fullerton. [1] [3] She was recognized as CSU Fullerton's 2004–2005 Outstanding Professor of the Year, [4] as well as the 2004–2005 Distinguished Professor in Humanities and Social Sciences. Segal also received the 2005 James Shields Award for Lifetime Contributions to Twin Research from the Behavior Genetics Association and International Society for Twin Studies.
Segal is a Fellow of the American Psychological Association,American Psychological Society and Western Psychological Association. She has been inducted into the Collegium of Distinguished Alumni at Boston University. Segal is an Associate Editor for the journal, Twin Research and Human Genetics ,was Contributing Research Editor for Twins Magazine from 1984–1998,and is a member of the Advisory Board for the Center for Loss in Multiple Birth. She served as Assistant Director of the Minnesota Center for Twin and Adoption Research,in the Department of Psychology at the University of Minnesota,1985–1991. She has appeared on Good Morning America , The Oprah Winfrey Show , Dateline NBC and the Today Show ,in addition to other nationally and locally televised programs. Her research interests include genetic and environmental influences on human behavior,especially social relationships and bereavement. Her research program includes twin and adoption studies that are specially designed to address problems and issues concerning human development in general,and twin development in particular.
Research
Segal's main research focuses on human behavior and includes cooperation and competition,altruism,personal bonds,and bereavement. She studies twins to understand social relationships in the general population,hoping to derive implications for what makes people get along. She finds that identical twins generally work together more cooperatively than others.
In addition to studying identical twins (who result from the splitting of one egg fertilized by one sperm and who share all of their genes) and fraternal twins (who come from two eggs fertilized by different sperm and who share on average half their genes,just as non-twin siblings do),Segal is the only researcher known to study "virtual" or "pseudo" twins. These are two people less than nine months apart in age but with different biological parents,who are raised together from infancy. Her studies in progress show a modest degree of similarity in virtual twins for general intelligence and special mental abilities.
Segal sees great promise in a related new area of research,epigenomics,which refers to natural chemical modifications that take place in individual genomes,marking them for increased or decreased activity.
Over the years,Segal has served as an expert witness on legal cases involving twins,in particular,wrongful death,injury,medical negligence,and custody. A paper reporting this work was published in a special issue of the journal Law and Human Behavior. Additional details about this area of study appear in her book,Entwined Lives.
Each year,Segal offers a seminar on behavior genetics and evolutionary psychology to graduate students in the Department of Psychology at CSU Fulleron. She has sponsored undergraduate and graduate research projects involving original twin research designs and methods. [2]
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