Poster Presentations

Segal, N.L. Monozygotic and dizygotic twins: Studies of cooperation & competition. American Academy for the Advancement of Science (AAAS), May, 1984, New York, NY.

Segal, N.L., Bouchard, T. J., Jr., D.T., et al.A fifty-year celebration of reared apart twin research. Minnesota Psychological Association, May 9, 1986.

Segal, N.L. Cooperation, competition, and altruism within twin sets. Sigma Delta Epsilon, April 8, 1987.

Eckert, E.D., Heston, L.L., Segal, N.L., Grove, W., Lykken, D. & Bouchard, T.J., Jr.: Homosexuality in MZ and DZ twins reared apart from infancy: Developmental and personality variables. Society for Biological Psychiatry, May, 1989.

Roy, A., Segal, N.L., Centerwall, B. & Robinette, D. Suicide in twins. First World Congress on Psychiatric Genetics, Cambridge, England, August 3-5, 1989.  (Supported, in part, by that National Science Foundation, NSF: BNS-8709207)

Segal, N.L.: New studies of twins and twin relationships.American Psychological Association Science Weekend, New Orleans, LA, August 12-13, 1989. (Supported by NSF: BNS-8709207)

Segal, N.L. Cooperation and competition in monozygotic and dizygotic twin children: Replication and extension. XI Conference on Human Development, Richmond, VA March 29-31, 1990.(Supported by NSF: BNS-8709207)

Segal, N.L. Grief associated with twin loss exceeds grief associated with other relatives.  II American Psychological Society, Dallas, TX, June 7-10, 1990. (Supported, in part, by NSF: BNS-8709207)

Segal, N.L. Study of bereavement in twins. Sigma Delta Epsilon/Graduate Women in Science (Invited poster session for research awardees), St. Paul, MN, June 27-July 1, 1990. (Supported, in part, by NSF: BNS-8709207)

Segal, N.L. A twin study of suicide. 98th American Psychological Association, Boston, MA, August 10-14, 1990.  (Supported, in part, by NSF: BNS-8709207)

Segal, N.L. & Bouchard, T.J., Jr. Grief intensity following the loss of a twin and other relatives. XI International Society for the Study of Behavioral Development, Minneapolis, MN, July 3-7, 1991 (Supported, in part, by NSF: BNS-8709207).

Segal, N.L. & Bouchard, T.J., Jr. Hand-discordance in MZ and DZ twins reared apart and together. III American Psychological Society, Washington, D.C., June 13-16, 1991 (Supported, in part, by NSF: BNS-8709207)

Segal, N.L. & Russell, J.M. Educating twins: School policy issues and recommendations. Conference on Human Development, Atlanta, GA, April 10-12, 1992.

** Topolski, T. D., Segal, N.L. & Brown, K. Olfactory sensitivity: Comparative analyses of monozygotic and dizygotic twin pairs. 100th American Psychological Association, Washington, D.C., August 14-18, 1992.

** Segal, N. L., Bouchard, T.J., Jr.,Wilson, S. M., & Gitlin, D.G. Grief for deceased twins exceeds grief for other relatives: Update and new findings. V American Psychological Society, Chicago, IL, June 25-28, 1993.

** Segal, N.L., Topolski, T.D., Brown, K.W., & Wilson, S.M. A Twin Study of Olfactory Perception. 23rd Behavior Genetics Association, Sydney, Australia, July 13-16, 1993.

** Segal, N.L. & Connelly, S.L. Cooperation and competition in pairs of unrelated twins. 101st American Psychological Association, Toronto, Canada, August 20-24, 1993.

Roy, A., Segal, N.L., Sarchiapone, M., et al. Suicide in twins. The future of VA Mental Health Research, Washington, D.C.,November 8-9, 1993.

Roy, A., Segal, N.L., Sarchiapone, M., Lavin, M., Bansil, R., Vora, S., & Delaney, B. Attempted suicide among living cotwins of twin suicide victims. American College of Neuropsychopharmacology, December, 1993, Honolulu, HA.

Roy, A., Segal, N.L., Sarchiapone, M., Lavin, M., Williams, J., & Solt, V. Suicidal behavior among twins. Society of Biological Psychiatry, 1994.

Roy, A., Sarchiapone, M., Segal, N.L., Lavin, M., Williams, J., & Solt, V. Suicidal behavior among twins. 27th American Association of Suicidology, New York, NY, April 6-9, 1994.

** Segal, N.L., Topolski, T.D., Grimes, M., Wilson, S.M., Brown, K.W. Behavioral-Genetic Studies of Olfactory Perception. American Chemical Society, April 13-18, 1994, Sarasota, FL.

Segal, N.L., Roy, A., & Sarchiapone, M. Twin analyses show genetic influences on suicide and suicide attempts. American Psychological Society, June 30-July 3, 1994, Washington, D.C.

** Segal, N.L., & Grimes, M. Genetic relatedness and odor similarity: A twin study. 24th Behavior Genetics Association, Barcelona, Spain, July 7-10, 1994.

Segal, N.L., & Bouchard, T.J., Jr. Grief intensity in bereaved monozygotic and dizygotic twins. American Psychological Association, August 12-16, 1994, Los Angeles, CA.

** Blozis, S.A., Segal, N.L., Bouchard, T.J., Jr., Serpe, R.T. Coping and health characteristics in bereaved twins: A psychobiological perspective. American Psychological Association, August 12-16, 1994, Los Angeles, CA.

** Grimes, M.V., Segal, N.L. & Topolski, T.D. Twin study of genetic relatedness and odor similarity. Western Psychological Assoc., March 30-April 2, 1995, Los Angeles, CA.

** Segal, N.L. & Blozis, S.A. Bereavement in monozygotic and dizygotic twins: An evolutionary perspective. Human Behavior and Evolution Society, June 28-July 2, 1995, Santa Barbara, CA.

** Cherry, B.J., Neale, P., Kee, D.W., McBride, D., & Segal, N.L. Visual information processing in hand-discordant monozygotic twins.  American Psychological Society, June 30 - July 2, 1996, San Francisco, CA.

Segal, N.L. Beyond adoptive siblings: New analysis of intellectual development Society for Research in Child Development, April 3-7, 1997, Washington, D.C.

** Ream, S.L., & Segal, N.L. Grief intensity change for deceased twin and non-twin relatives. Western Psychological Association, April 24-27, 1997, Seattle, WA.

Segal, N.L., & Hershberger, S.L. Genetic Contributions to Cooperation and Competition: A Twin Analysis Using the Prisoner’s Dilemma Game. Human Behavior and Evolution Society, June 4-8, 1997, Tucson, AZ

** Giordani, P.J., & Segal, N.L. An analysis of problem behaviors in unrelated siblings reared together from infancy of the same age (UST-SA), as measured by the CBCL. Behavior Genetics Association, Toronto, Canada, July 10-13, 1997

** Segal, N.L., & Ream, S.L. Decrease in grief for deceased twin and non-twin relatives:An evolutionary view. International Twin Congress, Helsinki, Finland, June 3-5, 1998.

Segal, N.L. Update on IQ Similarity of Unrelated Same Age Siblings. Behavior Genetics Association, Stockholm, Sweden, June 8-10, 1998.

** Segal, N.L., & Ream, S.L. Changes in grief intensity following the loss of twin and non-twin relatives: An evolutionary analysis. Human Behavior and Evolution Meeting, Davis, CA, July 8-12, 1998.

** Segal, N.L., & Arad, S. Perceived social closeness and familiarity in twins reared apart: An update. Human Behavior and Evolution Meeting, Amherst, MA, June 7-11, 2000.

Segal, N.L., & Roy, A. Twin study of suicidal behavior: Replication and extension. Behavior Genetics Association, Burlington, VT, June 28-July 1, 2000.

** Segal, N.L., & Arad, S. Perceived social closeness and familiarity in twins reared apart: An update. International Soc. for Human Ethology, Salamanca, Spain, August 8-13, 2000.

** Segal, N.L., & Arad, S. Reunited twins vs their adoptive siblings: Whom do they favor? Behavior Genetic Principles - Development, Personality, and Psychopathology, University of Minnesota, Minneapolis, MN, June 8-9, 2001.

** Johnson, W., Bouchard, T.J.B., Jr., Segal, N.L., Keyes, M., & Samuels, J. The Stroop interference effect: Reading, mental ability, and personality correlates in the Minnesota Study of Twins Reard Apart. Behavior Genetic Principles - Development, Personality, and Psychopathology, University of Minnesota, Minneapolis, MN, June 8-9, 2001.

** Segal, N.L., & Etchells, S. Parental ratings of abasement, aggression and favorability in virtual twins. American Psychological Society, Toronto, Canada, June 14-17, 2001.

** Segal, N.L., & Arad, S. Reunited twins vs their adoptive siblings: Whom do they favor? Faculty Day, CSU Fullerton, Fullerton, CA, August 15, 2001.

Segal, N.L. From graduate seminars to student publications. Celebration of Teaching Week, CSUF, Fullerton, CA, April 11, 2002.

Segal, N.L., & Allison, D.B. Twins and virtual twins: Influences on relative body weight revisited. Behavior Genetics Association, Keystone, CO, July 3-7, 2002.

Patel, U.J., Kee, D.W., Segal, N.L., & Cherry, B. MZ twins discordant for handedness: Self-report vs. performance measures. Western Psychological Association, Vancouver, B.C., May 1-4, 2003.

** Segal, N.L., Marelich, W.D., Castillo, R., & Mearns, J. Problem behaviors in virtual twins: Analysis of shared family influences. 33rd Behavior Genetics Association Meeting, Chicago, IL, June 25-28, 2003.

** Castillo, R., Segal, N.L., Marelich, W.D., & Mearns, J. Parental ratings of problem behaviors I two types of unique unrelated siblings: Virtual twins. Western Psychological Association Meeting, Portland, OR, April 14-17, 2005.

Segal, N.L., McGuire, S.A., Havlena, J., Davis, J., & Hershberger, S.L. Virtual twins: What they have told us and what they may tell us about psychological development. 17th American Psychological Society, Los Angeles, CA, May 26-29, 2005.

** Segal, N.L., Seghers, J., Castillo, R., Vanevery, A., & Moreno, T. Social closeness of MZ and DZ twin parents toward their nieces and nephews. 17th Human Behavior and Evolution Society, Austin, TX, June 1-5, 2005

** Segal, Nancy L., Seghers, J., & Castillo, R., Vanevery, A., & Moreno, T. Social closeness of MZ and DZ twin parents toward their nieces and nephews. 35th Behavior Genetics Association, Hollywood, CA, June 29-July 2, 2005.

Segal, N.L. Effects of male axillary secretions on menstrual regularity: Sweat and swing. International Behavioral Development Symposium, Minot, ND, August 3-6, 2005.

** Chavarria, K., & Segal, N.L.Social relationships in twins and their families. Western Psychological Association, Palm Springs, CA., April 27-30, 2006.

** Segal, N.L., Seghers, J.P., Chavarria, K., Marelich, W., Mechanic, M., & Castillo, R. Social closeness between twin parents and their nieces and nephews. American Psychological Society, New York City, NY, May 25-28, 2006.

** Segal, N.L., McGuire, S., Havlena, J, & Gill, P. IQ Similarity in virtual twins: Developmental trends. Behavior Genetics Association, Storrs, CT, June 20-25, 2006.

** Segal, N.L., Seghers, J.P., Chavarria, K., Marelich, W. & Mechanic, M. Social closeness and gift-giving to nieces and nephews: A twin-family study. Human Behavior and Evolution Society, Philadelphia, PA, June 7-11, 2006.

** Chavarria, K.A., & Segal, N.L. When parents are twins: Double look at social relations within families. Posters on the Hill, Council on Undergraduate Research, Washington, D.C., April 25, 2007.

** Chavarria, K., & Segal, N.L. Gift-giving in twin families: aunts/uncles and nieces/nephews. Western Psychological Association, Vancouver, Canada, May 3-6, 2007.

Segal, N.L., McGuire, A.S., Miller, S., & Havlena, J. Monozygotic-dizygotic-virtual twin study of tacit coordination: Mechanism for social relatedness? Society for Personality and Social Psychology (Evolutionary Psychology Pre-Conference). Albuquerque, NM, February 7, 2008.

** McGuire, S., Segal, N. L., Gruen, J., & Kuhn, H. (March, 2008). Symmetry in sibling trust: A twin-adoption-sibling design.Society for Research on Adolescence, Chicago, IL, March 6-8, 2008.

** Harris, V.A., & Segal, N.L. Bereavement-related responses following the loss of a twin. Western Psychological Association, Irvine, CA, April 10-13, 2008.

** Von Pohle, C., Segal, N.L., & Doumani, S. Resemblance and relatedness in families with twins: Implications for human cloning. Western Psychological Association, Irvine, CA, April 10-13, 2008.

Segal, N.L., & Stohs, J.H. Chinese twin children reared apart: A prospective study of medical, intellectual and life history characteristics. Behavior Genetics Association, Louisville, KY, June 25-28, 2008.

** Segal, N.L., & Harris, V.A. Bereavement-related responses following the loss of an MZ or DZ twin. Behavior Genetics Association, Louisville, KY, June 25-28, 2008.

Segal, N.L., McGuire, S.A., Miller, S., & Havlena, J. Monozygotic-dizygotic-virtual twin study of tacit coordination: Mechanism for social relatedness? International Society for Human Ethology, Bologna, Italy, July 13-17, 2008.

Feng, R., Segal, N.L., Miller, S., McGuire, S.A., & Allison, D. Variance decomposition of relative body weight using twins and virtual twins. Annual Scientific Meeting of The Obesity Society, Phoenix, AZ, October 3 - 7, 2008.

** Harris, V.A., & Segal, N.L. Grief-related behaviors following the loss of a twin. Western Psychological Association, Portland, OR, April 23-26, 2009.

** Foertsch, A.R., McGuire, S., Segal, N.L. & Baker, M.R. Closeness in sibling relationships: A twin-sibling study. Western Psychological Association, Portland, OR, April 23-26, 2009.

Segal, N.L. & Hoven Stohs, J. Age at First Intercourse in Reared Apart Twins: Genetic Influence and Life History Events. 39th Behavior Genetics Association Meeting, Minneapolis, MN, July 17-20, 2009. 

** Von Pohle, C. M., Segal, N. L., Marelich, W. B., & Goetz, A. T. Relatedness and altruism among kin in biological and non-biological contexts. Western Psychological Association, Cancun, Mexico, April 22-25, 2010.

** Von Pohle, C. M., Segal, N. L., Marelich, W. B., & Goetz, A. T. Relatedness and altruism among kin in biological and non-biological contexts. Human Behavior and Evolution Society, Eugene, Oregon, June 16-20, 2010.

Segal, N.L., & Blandón-Gitlin, I. Monozygotic twins switched at birth: Issues and findings from the recent Canary Islands case. 13th International Congress of Twin Studies, Seoul, South Korea, June 4-7, 2010.

** Munson, J., & Segal, N.L., Tacit coordination in monozygotic and dizygotic adult twins. 92nd Western Psychological Association, San Francisco, CA, April 26-29, 2012.
 

**Larribas, T.L., Gross, M.S., Palaniappan, M., Karnilowicz, H.R., McCarthy, S.E., & Segal, N.L. Loneliness in middle childhood: Social connectedness and genetic relatedness. 92nd Western Psychological Association, San Francisco, CA, April 26-29, 2012.

**Munoz, J.A., Munson, J.E., Graham, J.L., Torres, J.L., & Segal, N.L. Comparative study of grief intensity in bereaved monozygotic and dizygotic twins. Southern California Conference for Undergraduate Research, Channel Islands, CA, November 17, 2012.

** Harris, V.A., Segal, N.L., & Mendez, N., Unmet needs of families of twins with special needs. Society for Research in Child Development, Seattle WA, April 18-20, 2013.

**Harris, V.A., Segal, N.L., & Mendez, N. Unmet needs of twins with special needs: Diagnoses challenges, services and sibling relationships. The iith Annual Stephen Hinkle Memorial Poster Session, Oxford, OH, April 26, 2013.

** Munoz, J.V., Torres, J., Munson, H., Graham, J.L., & Segal, N.L. Effects of genetic relatedness on bereavement for monozygotic and dizygotic twins. Western Psychological Association, Reno, NV, April 25-28, 2013.

Karnilowicz, H.R., Kreter, V., Gross, M., Butera, L., McGuire, S., & Segal, N.L. Effortful control in middle childhood: A twin-sibling-adoptee study. Western Psychological Association, Reno, NV, April 25-28, 2013.


Gross, M., Butera, L., Karnilowicz, H.R., Krater, V., McGuire, S., &smp; Segal, N.L., Maternal employment and the smother-child relationship. Western Psychological Association, Reno, NV, April 25-28, 2013.

** Cortez, F.A., Segal, N.L., Munson, J.E., Muñoz, J.A., &smp; Reed, B.W. Social closeness of twin parents towards nieces/nephews: A replication. Western Psychological Association, Portland, OR, April 24-27, 2014.

** Muñoz, J.A., Segal, N.L., Reed, B.W, Cortez, F.A.,&  Munson, J.E. Creativity in monozygotic and dizygotic twins reared apart. Western Psychological Association, Portland, OR, April 24-27, 2014.

** Reed, B.W., Segal, N.L., Munson, J.E., Muñoz, J.A., & Cortez, F.A. Grief intensity for deceased twins and non-twin relatives: An update. Western Psychological Association, Portland, OR, April 24-27, 2014.

** Karnilowicz, H., Tahija, N., Saroha, C., Gross, M., & Segal, N.L. Complete the puzzle: A behavioral genetic examination of sibling cooperation. Western Psychological Association, Portland, OR, April 24-27, 2014.

Bitrian, E., Armbrust, K., Wright, M,M., Grajewski, A., Caprioli, J. van Kuijk, E,J., Segal, N., & Bouchard, T. Genetic influence of optic disc structure: The Minnesota Twins Reared Apart Study (MISTRA). Association for Research in Vision and Opthalmology, Orlando, FL, May 4-8, 2014.

** Segal, N.L., Mollova, S., Marelich, W.D., & Preston, K. Does relatedness affect social closeness toward nieces and nephews? Society for Personality and Social Psychology: Evolutionary Psychology Pre-Conference. Long Beach, CA, February 26, 2015.

Tokarev, J., Bitrian, E., Zhou, C., Koozekanani, D., Van Kuijk, E.J., Segal, N., & Bouchard, T. Genetic influence of vascular patterns: the Minnesota Twins Reared Apart Study (MISTRA). Annual Meeting of the Association for Research in Vision and Ophthalmology (ARVO). Denver, CO, May 3-7, 2015.

Segal, N.L., & Killian, A. C. DZA twins conceived via identical double embryo donors: Behavioral features of three infant pairs raised in different countries. Behavior Genetics Association, San Diego, CA, June 17-20 2015.

** Segal, N.L., Mollova, S., Marelich, W.D., & Preston, K. Twin-family study of social closeness toward nieces and nephews. Behavior Genetics Association, Brisbane, Australia, June 20-23, 2016.

** Hernandez, B.A., Bojorquez, H., & Segal, N.L., Association of grief and genetic relatedness: Variations in loss experiences amongst monozygotic and dizygotic twins, Western Psychological Association, Sacramento, CA, April 27-30, 2017.

** Segal, N.L., Hernandez, B., Graham, & J. & Ettinger, U. Personality similarity of unrelated look-alikes: Further tests of a twin study criticism. Behavior Genetics Association, Oslo, Norway, June 29-July 1, 2017.

** completed with past/present student co-author