Hi Jo, The zygosity of each twin reported in ConnectomeDB is by self report via several questions in the phone screening interview prior to the subject visit. We have successfully done analyses with the MZ, DZ, and sibling family structure taken into account is it is reported in the DB. We may verify the MZ/DZ desigations with genetic data, but if we do that it will be reported in a separate field in DB, called something like Genetic_zygosity.
Best, Jenn Jennifer Elam, Ph.D. Outreach Coordinator, Human Connectome Project Washington University School of Medicine Department of Anatomy and Neurobiology, Box 8108 660 South Euclid Avenue St. Louis, MO 63110 314-362-9387 [email protected] www.humanconnectome.org -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jo Etzel Sent: Thursday, September 03, 2015 10:50 AM To: [email protected] Subject: [HCP-Users] how confirming twins' zygosity? Has the zygosity of the twin pairs been confirmed in the currently-released (500-subject) database? If so, how? I understand that genetic information is being collected for later testing, but am wondering if restricted analyses have already been carried out to confirm the MZ and DZ (or other sibling) labeling. thanks, Jo Etzel -- Joset A. Etzel, Ph.D. Research Analyst Cognitive Control & Psychopathology Lab Washington University in St. Louis http://mvpa.blogspot.com/ _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
