Davis, J.M., Segal, N.L. & Lesser, J.M. (1982). Use of antipsychotic drugs in the elderly (Brook Lodge Symposium). In C. Eisdorfer & W.E. Fann (Eds.), Treatment of Psychopathology in the Aging (Series 2). New York: Springer Publishing Co., 8-28.
Davis, J.M., Segal, N.L. & Spring, G. K. (1983). Biological and genetic aspects of manic depressive illness in the elderly. In L. Breslau & M. Haug (Eds.), Depression and Aging:Causes, Care and Consequences.New York: Springer Publishing Co., 94-113.Segal, N.L. (1983). [Review of Advances in developmental psychology, Volume I]. In Cognition & Brain Theory, 6(3), 366-368.
Segal, N.L. (1984). Cooperation, competition and altruism within twin sets: A reappraisal. Ethology & Sociobiology, 5(3), 163-177.
Segal, N.L (1984). Zygosity diagnosis: Laboratory and investigator’s judgment. Acta Geneticae Medicae et Gemellologiae Twin Research, 33(3), 515-520.
Segal, N.L. (1984). Distribution of handedness among a group of academically select high school and university students. Journal of General Psychology, 111, 79-82.
Segal, N.L. (1985). Monozygotic and dizygotic twins: A comparative analysis of mental ability profiles. Child Development, 56, 10511058.Bouchard, T.J., Jr. &
Segal, N.L. (1985). IQ and environment.(Chapter 10) In B. B. Wolman (Ed.), Handbook of Intelligence.NY: JohnWiley & Sons, 391-464.Segal, N.L. (1986) Review of The Psychology of Twinship. Contemporary Psychology, 31, 456.
Bouchard, T.J., Jr., Lykken, D.T., Segal, N.L., & Wilcox, K.J.(1986). Development in Twins Reared Apart: A test of the chronogenetic hypothesis.In A. Demirjian (Ed.) Human Growth: A Multidisciplinary Review (Proceedings of the Fourth International Congress of Auxology),London, England, Taylor & Francis, Ltd., 299-310.Segal, N.L. (1988). Cooperation, competition and altruism in human twinships: A sociobiological approach. In K.B. MacDonald (Ed.), Sociobiological Perspectives on Human Development. N.Y.: Springer-Verlag, 168-206.Tellegen, A., Lykken, D.T., Bouchard, T.J., Jr., Wilcox, K.J., Segal, N.L. & Rich, S. (1988). Personality similarity in twins reared apart and together. Journal of Personality and Social Psychology, 54, 1031-1039.
Arvey, R.D.,Bouchard, T.J., Jr., Segal, N.L. & Abraham, L.M. (1989). Job satisfaction: Environmental and genetic components.Journal of Applied Psychology, 74, 187-192.
Hanson, B., Tuna, N., Bouchard, T., Heston, L., Eckert, E., Lykken, D, Segal, N. & Rich, S. (1989). Genetic factors in the electrocardiogram and heart rate of twins reared apart and together. American Journal of Cardiology, 63, 606-609.
Segal, N.L. (1989). Twin survivors of Auschwitz-Birkenau: Behavioral, medical and social issues. Remembering for the future: Working papers and agenda.Oxford: Pergamon Press, 2288-2298.
Segal, N.L. (1989). Origins and implications of handedness and relative birth weight for IQ in monozygotic twin pairs. Neuropsychologia, 27(4), 549-561.
Bouchard, T.J., Jr. & Segal, N.L. (1990). Advanced mathematical reasoning ability: A behavioral genetic perspective. Behavioral and Brain Sciences, 13, 191-2.
Grove, W.M., Eckert, E.D., Heston, L., Bouchard, T.J., Jr., Segal, N. & Lykken, D.T. (1990). Heritability of substance abuse and antisocial behavior: A study of monozygotic twins reared apart. Biological Psychiatry, 27, 1293-1304.
Segal, N.L., Dysken, M., Bouchard, T.J., Jr., Pedersen, N.L., Eckert, E.D. & Heston, L.L. (1990). Tourette disorder in reared apart triplets: Genetic and environmental influences. American Journal of Psychiatry, 147, 196-199. (Cited in the 1991 Year book of psychiatry and applied mental health and Science News, 137, 1990, p. 125))
Segal, N.L. (1990).The importance of twin studies for individual differences research. (Invited paper). Journal of Counseling and Development, 68, 612-622.
Bouchard, T.J., Jr., Segal, N.L. & Lykken, D.T. (1990). Genetic and environmental influences on special mental abilities in a sample of twins reared apart. Acta Medicae Geneticae et Gemellologiae, 39, 193-206.
Bouchard, T.J., Jr., Lykken, D.T., McGue, M., Segal, N.L. & Tellegen, A.(1990). Sources of human psychological differences: The Minnesota Study of Twins Reared Apart (Invited paper). Science, 250, 223-228.
Segal, N.L., Eckert, E.D., Grove, W.M., Bouchard, T.J., Jr. & Heston, L.L. (1990).A summary of psychiatric and psychological findings from the Minnesota Study of Twins Reared Apart.(Invited paper) Proceedings from the World Psychiatric Association Regional Symposium: Etiology of Mental Disorder, August 23-26, 1990, Department of Psychiatry, University of Oslo: Oslo, Norway, 183-200.
Roy, A., Segal, N.L., Centerwall, B. & Robinette, D. (1991). Suicide in twins. Archives of General Psychiatry, 48, 29-32. (cited in Harvard Mental Health Letter, July, 1991, p. 7)
Michalowicz, B.S., Aeppli, D., Kuba, R.K.,Virag, J.G., Klump, D.G., Hinrichs, J.E., Segal, N.L., Bouchard, Jr., T.J. & Pihlstrom, B.L. (1991). Periodontal findings in adult twins. Journal of Periodontology, 62, 293-299.
Segal, N.L. & Russell, J. (1991). IQ similarity in monozygotic and dizygotic twin children: Effects of the same versus separate examiners: A research note. Journal of Child Psychology and Psychiatry, 32, 703-708.
Moloney, D.P., Bouchard, T.J., Jr., & Segal, N.L.(1991). A genetic and environmental analysis of the vocational interests of monozygotic and dizygotic twins reared apart. Journal of Vocational Psychology, 39, 76-109.
Michalowicz, B.S., Aeppli, D.P., Kuba, R.K., Bereuter, J.E., Conry, J.P., Segal, N.L., Bouchard, Jr., T.J. & Pihlstrom, B.L.(1991). A twin study of genetic variation in proportional radiographic alveolar bone height. Journal of Dental Research, 70, 1431-1435.
Segal, N.L., Grove, W.M. & Bouchard, T.J., Jr. (1991). Psychiatric investigations and findings from the Minnesota Study of Twins Reared Apart.In M. Tsuang, K. Kendler & M. Lyons (Eds.) Genetic issues in psychosocial epidemiology, Vol. 8. New Brunswick: Rutgers University Press, 247-266.
Hanson, B., McGue, M., Roitman-Johnson, B., Segal, N.L., Bouchard, T.J., Jr. & Blumenthal, M.N. (1991).Atopic disease and immunoglobulin E in twins reared apart and together. American Journal of Human Genetics, 48, 873-879.
Keller, L.M., Bouchard, T.J., Jr., Dawis, R.V., Arvey, R.D. & Segal, N.L. (1992). Work values: Genetic and environmental influences. Journal of Applied Psychology, 77, 79-88.
Segal, N.L. & Russell, J.M. (1992). Twins in the classroom: School policy issues and recommendations. Journal of Educational and Psychological Consultation, 3, 69-84.
Segal, N.L. (1992). Twin research at Auschwitz-Birkenau: Implications for the use of Nazi data today. In A. Caplan (Ed.) When Medicine Went Mad. Totowa: Humana Press, 281-299.
Segal, N.L. (1992).Twins: human. McGraw-Hill Encyclopedia of Science and Technology, 7th ed., 18, 639-642. New York: McGraw-Hill.
** Segal, N.L., Brown, K.W. & Topolski, T.D. (1992). A Twin Study of Odor Identification and Olfactory Sensitivity. Acta Genetica Medicae et Gemellologiae, 41, 113-121.
Segal, N.L. & Bouchard, T.J., Jr. (1993). Grief intensity following the loss of a twin and other close relatives: Test of kinship-genetic hypotheses.Human Biology, 65, 87-105.
Segal, N.L. (1993). Implications of twin research for legal issues involving young twins. Law and Human Behavior (Special Issue: Law, psychology and children) 17, 43-58.
Mealey, L. & Segal, N.L. (1993). Heritable and environmental variables affect reproduction-related behaviors, but not ultimate reproductive success. Personality & Individual Differences, 14, 783-794.
Segal, N.L. (1993). Twin, sibling and adoption methods: Tests of evolutionary hypotheses. American Psychologist, 48, 943-956.
** Segal, N.L. & Topolski, T.D. (1995). The genetics of olfactory perception. (invited chapter).In R.L. Doty (Ed.) Handbook of Clinical Olfaction and Gustation. New York: Marcel Dekker, Inc., pp. 323-343.
** Segal, N.L., Topolski, T.D., Wilson, S.M., Brown, K.W., & Araki, L. (1995). Twin analysis of odor identification and perception. Physiology and Behavior, 57, 605-609.
** Segal, N.L. & Topoloski, T. (1995). A twin research perspective on reading and spelling disabilities. (invited paper) Reading and Writing Quarterly, 11, 209-227.
** Segal, N.L., Wilson, S.M., Bouchard, T.J., Jr., & Gitlin, D.G. (1995). Comparative grief experiences of bereaved twins and other bereaved relatives. Personality and Individual Differences, 18, 511-524.
Roy, A., Segal, N.L., & Sarchiapone, M. (1995). Attempted suicide among living co-twins of twin suicide victims.American Journal of Psychiatry, 152, 1075-1076.
Segal, N.L. (1995). Twin research on olfactory characteristics.In A.N. Gilbert (Ed.) Explorations in Aroma-Chology: Compendium of aroma-chology research 1982-1994. (pp. 25-28). New York: Olfactory Research Fund, Ltd.
Segal, N.L. (1995). Experience is the best teacher. (Chapter Introduction) (p. 177). In R. Field & R. House (Eds.) Human behavior in organizations. Canada: Prentice Hall. (1st & 2nd editions)
** Segal, N.L., Grimes-Hillman, M. & Topolski, T.D. (1995). Twin study of genetic relatedness and odor similarity. Aroma-chology Review, 4, 2, 10-12.
Segal, N.L., & Roy, A. (1995). Suicide attempts in twins whose co-twins’ deaths were non-suicides. Personality and Individual Differences 19, 937-940.
Segal, N.L. (1995). Pathways to sociopathy: Twin analyses offer direction. Behavioral and Brain Sciences, 18, 574-575.
** Segal, N.L., Connelly, S.L., & Topoloski, T.D. (1996). Twin children with unfamiliar partners: Genotypic and gender influences on cooperation. Journal of Child Psychology and Psychiatry, 37, 731-735.
Segal, N.L. (1997). Same-age unrelated siblings: A unique test of within-family environmental influences on IQ similarity. Journal of Educational Psychology, 89, 381-390.
Segal, N.L. (1997). Review: E. Mavis Hetherington, D. Reiss, & R. Plomin (Eds.) Review of: Separate worlds of siblings: The impact of nonshared environment on development. Hillsdale, NJ: Lawrence Erlbaum Associates, 1994. Human Ethology Bulletin, 12, 10-13.
Segal, N.L. (1997). Behavioral aspects of intergenerational cloning: What twins tell us. Jurimetrics, 38, 57-67. (invited paper) Reprinted in M. Gauvain & M. Cole (Eds.) Readings on the Development of Children 3rd ed., NY: Worth.
Segal, N.L. (1997). Twin research perspective on human development. In N.L. Segal, G.E. Weisfeld, & C.C. Weisfeld (Eds.),Uniting psychology and biology: Integrative perspectives on human development (pp. 145-173). Washington, D.C.: APA Press.
Segal, N.L.,Weisfeld, G.E., & Weisfeld, C.C. (1997). Pursuing the big picture. In N.L. Segal, G.E. Weisfeld, & C.C. Weisfeld (Eds.),Uniting psychology and biology: Integrative perspectives on human development (pp. 3-18). Washington, D.C.: APA Press.
Weisfeld, G.E., Weisfeld, C.C., & Segal, N.L. (1997). Final overview: Uniting psychology and biology. In N.L. Segal, G.E. Weisfeld, & C.C. Weisfeld (Eds.), Uniting psychology and biology: Integrative perspectives on human development (pp. 523-534). Washington, D.C.: APA Press.
Segal, N.L., & Roy, A. (1998). Twin research perspective on suicide and suicidal attempts. In D. De Leo, A. Schmidtke, & Diekstra, R.F.W. (Eds.).Suicide prevention: A holistic approach (pp. 53-61). Dordrecht, The Netherlands: Kluwer.
Segal, N.L. (1998). Gender differences in bereavement response and longevity: Findings from the California State University Twin Loss Study. In L. Ellis and L. Ebertz (Eds.), Males, females, and behavior: Toward biological understanding (pp. 195-212). Westport, CT: Praeger.
** Segal, N.L., & Ream, S.L. (1998). Decrease in grief intensity for deceased twin and non-twin relatives: An evolutionary perspective. Personality & Individual Differences, 25, 317-325.
Segal, N.L., & MacDonald, K.B. (1998). Behavior genetics and evolutionary psychology: A unified perspective. Human Biology (Special issue: J. Gilger, & S.L. Hershberger, Eds., Advances in human behavioral genetics: A synthesis of quantitative & molecular approaches, 70, 159-184.
** Kee, D.W., Cherry, B.J., McBride, D., Neale, P., & Segal, N.L. (1998). Multitask analysis of cerebral hemisphere specialization in monozygotic twins discordant for handedness. Neuropsychology, 12, 468-478.
Roy, A., Nielsen, D., Rylander, G., Sarchiapone, M., & Segal, N. (1999). Genetics of suicide in depression. Journal of Clinical Psychiatry, 60, 12-17.
Segal, N.L., & Hershberger, S.L. (1999). Cooperation and competition in adolescent twins: Findings from a prisoner’s dilemma game. Evolution and Human Behavior, 20, 29-51.
Segal, N.L. (1999). Behavioral aspect of intergenerational human cloning: Twin-based perspective. Twin Research, 2, 53-57.
Segal, N.L. (1999). Silent partners: Twins with selective mutism. Twin Research, 22, 235-239.
Segal, N.L. (1999). Kin recognition by olfactory cues: What can twins tell us? Twin Research, 2, 293-298.
Segal, N.L. (2000). Forgotten twins. Twin Research, 3, 58-63.
Segal, N.L. (2000). New breast cancer research: Mothers and twins. Twin Research, 3,118-122.
Segal, N.L. (2000). Virtual twins: New findings on within-family environmental influences on intelligence. Journal of Educational Psychology, 92, 442-448.
Segal, N.L. (2000). New wrinkles on aging and adolescence. Twin Research, 3, 180-184.
Segal, N.L. (2000). Identical and fraternal: When words mislead. Twin Research, 3,338-343.
Segal, N.L. (2000). Twins and other multiples. In L. Balter (Ed.) Parenthood in America: An encyclopedia, 2, Denver, CO: ABC-CLIO, 654-659.
Segal, N.L. (2001). Genain Quadruplets. Twin Research, 4, 57-61.
Segal, N.L., & Roy, A. (2001), Suicidal attempts and ideation in twins whose co-twins’ deaths were non-suicides: Replication and elaboration. Personality and Individual Differences, 31, 445-452.
Segal, N.L. (2001). Faces of Twins. Twin Research, 4, 119-123.
Roy, A., & Segal, N.L. (2001). Suicidal behavior in twins: A replication. Journal of Affective Disorders, 66, 71-74.
Segal, N.L. (2001). Reflections: An interview with Professor Irving I. Gottesman on the occasion of his festschrift. Twin Research, 4, 275-277.
Segal, N.L. (2002). Klinefelter's Syndrome. In N.J. Salkind (Ed.). Macmillan Psychology Reference Series, 1. NY: Macmillan References USA, p. 225.
Segal, N.L. (2002). Turner Syndrome. In N.J. Salkind (Ed.). Macmillan Psychology Reference Series, 1. NY: Macmillan References USA, p. 419.
Segal, N.L. (2001). Twin studies of dietary behaviors: Why we eat when we do. Twin Research, 4, 478-483.
** Mearns, J., Segal, N.L., & Clark, M. (2001/2002). The autism/engineering link: A replication of Baron-Cohen et al. (1997). International Pediatrics, 17, 60-61. (website: www.int-pediatrics.org)
** Segal, N.L., & Senina, I.N. (2002). Russian twin studies: Colleagues, controversies, case studies and current events. Twin Research, 5, 53-64.
Segal, N.L. (2002). Confronting unique problems with twins. Twin Research, 5, 139-43.
Segal, N.L. (2002).Twins: human. McGraw-Hill Encyclopedia of Science and Technology, 9th ed., 18, 735-740. New York: McGraw-Hill.
Segal, N.L., & Allison, D.B. (2002). Twins and virtual twins: Bases of relative body weight revisited. International Journal of Obesity, 26, 437-441
** Segal, N.L., & Blozis, S.A. (2002). Psychobiological and evolutionary perspectives on coping and health characteristics following loss: A twin study. Twin Research, 5, 175-187.
** Segal, N.L., Sussman, L.S., Marelich, W.D., Mearns, J., & Blozis, S.A. (2002). Monozygotic and dizygotic twins’ retrospective and current bereavement-related behaviors: An evolutionary perspective. Twin Research, 5, 188-195.
Segal, N.L. (2002), The case for the odd case. Twin Research, 5, 311-315.
Segal, N.L. (2002). Human cloning: A twin-research perspective. Hastings Law Journal, 53, 1073-1084. (Symposium: Conceiving a Code for Creation: The Legal Debate Surrounding Human Cloning).
Segal, N.L. (2002). Co-conspirators and double-dealers: A twin film analysis. Personality and Individual Differences, 33, 621-631.
** Segal, N.L. & Topolski, T.D. (2003). Genetics of human olfactory perception. In RL. Doty (Ed.) Handbook of Olfaction and Gustation. 2nd ed.(pp. 329-344).NY: Marcel Dekker, Inc.,
Bouchard, T.J., Jr., Segal, N.L., Tellegen, A., McGue, M., Keyes, M., & Krueger, R. (2003). Evidence for the construct validity and heritability of the Wilson-Patterson Conservatism Scale: A reared-apart twins study of social attitudes. Personality and Individual Differences, 34, 959-969.
Segal, N.L. (2003). Spotlights (Reared apart twin researchers); research sampling; literature, politics, photography and athletics. Twin Research, 6, 72-81.
** Segal, N.L., Hershberger, N.L., & Arad, S. (2003). Meeting one’s twin: Perceived social closeness and familiarity. Evolutionary Psychology, 1, 70-95.
Johnson, W., Bouchard, T.J., Jr., Segal, N.L., Keyes, M., & Samuels, J. (2003). The Stroop Color-Word Test: Genetic and environmental influences; reading, mental ability, and personality correlates. Journal of Educational Psychology, 95,58-65.
Segal, N.L. (2003). In detail (DZ twin-sibling discussion of frontotemporal dementia; A mother’s reflections on brittle bones in MZ infant twins); research reviews; of interest. Twin Research, 6, 241-247.
Segal, N.L. (2003). X and Y, a wild pair. (Book review). Science, 301, 599-600.
Segal, N.L. (2003). “Two” quiet: Monozygotic female twins with selective mutism. Clinical Child Psychology and Psychiatry, 8, 473-488.
Segal, N.L. (2003). Between twins: Birth intervals. Twin Research, 6, 498-501.
Bouchard, T.J., Jr., Segal, N.L., Tellegen, A., McGue, M., Keyes, M., & Krueger, R. (2004). Genetic influence on social attitudes: Another challenge to psychology from behavior genetics. In L. DiLalla (Ed.) Behavior Genetic Principles: Development, Personality and Psychopathology (pp. 89-104). Washington, D.C.: American Psychological Association Press.
Hershberger, S.L., & Segal, N.L. (2004). The cognitive, behavioral and personality profiles of a male monozygotic triplet set discordant for sexual orientation Archives of Sexual Behavior, 33, 497-514.
Segal, N.L.(2004). Twin weddings and wages. Twin Research, 7, 531-534.
Segal, N.L. (2004). Twin paternity: Who”s the father? Twin Research, 7, 675-679.
Johnson, W., Bouchard, T.J. Jr., Segal, N.L., & Samuels, J. (2005). General intelligence and reading performance in adults: Is the genetic factor structure the same as for children? Personality and Individual Differences, 38, 1413-1428.
Segal, N.L. (2005). Evolutionary studies of cooperation, competition and altruism: A twin-based approach. In R. L. Burgess & K. B. MacDonald & (Eds.) Evolutionary perspectives on human development. 2nd ed. (pp. 275-304). Thousand Oaks, CA: Sage.
Segal, N.L., & Hill, E.M. (2005). Developmental behavioral genetics and evolutionary psychology: Tying the theoretical and empirical threads. In B.J. Ellis, & D.F. Bjorkland (Eds.) Origins of the social mind: Evolutionary psychology and child development. (pp. 108-136). New York: Guilford.
Segal, N.L. (2005). Auditory systems of opposite-sex twins. Twin Research and Human Genetics, 8, 80-84.
Segal, N.L. (2005). Chimeric dizygotic twins. Twin Research and Human Genetics, 8 , 178-181.
Segal, N.L. (2005). More thoughts on the Child Development Center Twin Study. Twin Research and Human Genetics, 8, 276-281.
Segal, N.L. (2005). Twins reared apart design. In B. Everitt & D.C. Howell (Eds.) Encyclopedia of Statistics in Behavioral Science. 4, Chichester, UK: John Wiley & Sons, 2072-2076.
Segal, N.L. (2005). Education Issues. Twin Research & Human Genetics, 8, 409-414.
Segal, N.L., & Hershberger, S.L. (2005). Virtual twins and intelligence: Updated and new analyses of within-family environmental influences. Personality and Individual Differences, 39, 1061-1073.
Segal, N.L. (2005). Twin transplants. Twin Research and Human Genetics, 8, 538-541.
Segal, N.L. (2006). Twinsburg Research Institute. Twin Research & Human Genetics, 9,175-180.
Segal, N.L. (2006). Laboratory findings: Not twin, twins, not twins. Twin Research & Human Genetics, 9, 303-308.
Segal, N.L. (2006). Same or separate classrooms: A twin bill. Twin Research and Human Genetics, 9, 473-478.
Segal, N.L. (2006). Female to male: Two monozygotic twin pairs discordant for transsexualism. Archives of Sexual Behavior, 35, 347-358.
Segal, N.L. (2006). SuperQuads: A day in the life. Twin Research and Human Genetics, 9, 609-614.
Segal, N.L. (2006). Psychological features of human reproductive cloning: A twin-based perspective (invited paper). Psychiatric Times, XXIII 20, 22.
Segal, N.L. (2006). Fullerton Virtual Twin Study. Twin Research and Human Genetics
(Special issue on twin registries, A. Busjahn & Y.-M. Hur, Eds.) 9, 963-964.
Segal, N.L. (2006). Twin Towers: The ones left behind. Twin Research and Human Genetics, 9, 1038-1042.
Segal, N.L., McGuire, S.A., Havlena, J., Gill, P.,& Hershberger, S.L. (2007) Intellectual similarity of virtual twin pairs: Developmental trends.Personality and Individual Differences, 42, 1209-1219.
Segal, N.L. (2007).Sports pairs: Insights on athletic talent. Twin Research and Human Genetics, 10, 528-533.
Segal, N.L. (2007). Remembering David T. Lykken. Twin Research and Human Genetics, 10, 231-233.
** Segal, N.L., Seghers,J.P., Marelich, W.D., Mechanic, M., & Castillo, R.(2007). Social closeness of monozygotic and dizygotic twin parents toward their nieces and nephews. European Journal of Personality, 21, 487-506.
Segal, N.L. (2007). Twins: human. McGraw-Hill Encyclopedia of Science & Technology, 10th ed., 18, 733-738.
Segal. N.L. (2007). Identical twin parents. Twin Research and Human Genetics, 10, 658-661.
Segal, N.L. (2007). New sources of reared apart twins. Twin Research and Human Genetics, 10, 786-790.
** Segal, N.L. & Chavarria, K.A. (2007). Twin studies. In R. Baumeister & K.D. Vohs (Eds.). Encyclopedia of Social Psychology (pp. 1000-1001). Thousand Oaks, CA: Sage.
Segal, N.L. (2007). Twins and transsexualism: An update and a preview. Twin Research and Human Genetics, 10, 894-897.
Segal, N.L., & Stohs, J.H. (2007). Resemblance for age at menarche in female twins reared apart and together. Human Biology, 79, 623-635.
** Segal, N.L., Chavarria, K.A., & Stohs, J.H. (2007). Twin research: Evolutionary perspective on social relations. In C. A. Salmon & T.K. Shackelford & (Eds.). Family relationships: An evolutionary perspective (pp. 312-333). New York: Oxford University Press.
Johnson, W., Bouchard, T.J., Jr., McGue, M., Segal, N.L., Tellegen, A., Keyes, M., & Gottesman, I.I. (2007). Genetic and environmental influences on the verbal-perceptual-image rotation (VPR) model of the structure of mental abilities in the Minnesota Study of Twins Reared Apart. Intelligence, 35, 542-562.
Segal, N.L. (2008). Personality and birth order in monozygotic twins adopted apart: A test of Sulloway’s theory. Twin Research and Human Genetics, 11, 103-107.
** Segal, N.L., Chavarria, K., Hoven Stohs J. (2008). J. Leef wereld van tweelingen (World of twins). In D.I. Boomsma (Ed.) Tweelingonderzoek – Een fascinerende wetenschap (Twin research: A fascinating science) (p. 75-84). Amsterdam, the Netherlands: Vesuvius (Vrije Universiteit Press).
Segal, N.L. (2008). Opposite-Sex twins: When they marry. Twin Research and Human Genetics, 11, 236-239.
Segal, N.L. (2008). Elizabeth M. Bryan: Tributes from home and abroad. Twin Research and Human Genetics, 11, 357-361.
Segal, N.L. (2008). Behavioral-genetic methods illuminate evolutionary-based analyses. The General Psychologist, 43, 13-15.
Johnson, W., Segal N.L., & Bouchard, T.J., Jr. (2008). Fluctuating asymmetry and general intelligence: No genetic or phenotypic association. Intelligence, 36, 279-288.
Segal, N.L., McGuire, S.A., Miller, S., & Havlena, J. (2008). Tacit coordination in monozygotic twins, dizygotic twins and virtual twins: Effects and implications of genetic relatedness. Personality and Individual Differences, 45, 607-612.
Segal, N.L. (2008). Co-twin controls: Facioplasty. Twin Research and Human Genetics, 11, 474-477.
Segal, N.L., & Hur, Y.M. (2008). Reared apart Korean female twins: Genetic and cultural influences on life histories, physical and health-related measures, and behavioral traits. International Journal of Behavioral Development, 32, 542-548.
Segal, N.L. Dramatically different dizygotic twins: Will we include them in research? Twin Research and Human Genetics, 11, 567-570.
Segal, N.L. (2008). Twins and politics: Political careers and political attitudes. Twin Research and Human Genetics, 11, 656-660.
Segal, N.L. (2009). Twins reared apart: A forgotten case. Twin Research and Human Genetics, 12, 123-126.
Johnson, J., Gangestad, S.W., Segal, N.L., and Bouchard, Jr., T.J. (2008). Heritability of fluctuating asymmetry in a human twin sample: The effect of trait aggregation. American Journal of Human Biology, 20, 615-658.
Segal, N.L. (2008). Mistaken identity: Results and repercussions. Twin Research and Human Genetics, 11, 567-570.
Segal, N.L., Feng, R., McGuire, A.S., Allison, D.B., & Miller, S. (2008). Genetic and environmental contributions to body mass index: Comparative analysis of monozygotic twins, dizygotic twins and same-age unrelated siblings. International J of Obesity, 33, 37-41; doi: 10.1038/ijo.2008.228. (Featured in Research Highlights: Nature Clinical Practice Endocrinology and Metabolism.)
Segal, N.L., & Stohs, J.H. (2009). Age at first intercourse in twins reared apart: Genetic influence and life history events. Personality and Individual Differences, 47, 127-132.
Segal, N.L. (with Altowaiji, A., & Ihara, C.K.) The birth of octuplets: A research puzzle. Twin Research and Human Genetics,12, 328-331.
Segal, N.L., & Johnson, W. (2009). Twin studies of general mental ability. In Y.-K. Kim (Ed.). Handbook of Behavior Genetics (pp. 81-99). NY: Springer.
Segal, N.L. (2009). Monozygotic triplets: Concordance and discordance for cleft lip and palate. Twin Research and Human Genetics, 12, 403-406.
Segal, N.L. (2009). Twin loss: The annual convention. Twin Research and Human Genetics, 12, 519-522.
Segal, N.L. (2009). Multiple births: Developmental perspectives. In R.A. Schweder, T.R. Bidell, A.C. Dailey, S.D. Dixon, P.J. Miller, & J. Modell (Eds.). The child: An encyclopedic companion (pp. 650-652). Chicago: University of Chicago Press.
Segal, N.L. (2009). Unrelated ART twins. Twin Research and Human Genetics, 12, 619-622.
Segal, N.L. (2009). Suicidal ideation and suicide attempts in surviving MZ and DZ co-twins. Suicide and Life-Threatening Behavior, 39, 569-575.
Segal, N.L., & Blandón-Gitlin, I. (2010). Twins switched at birth: A case from the Canary Islands. Twin Research and Human Genetics, 13,115-119.
Segal, N.L. (2010). Twins: The finest natural experiment. Personality and Individual Differences, 49, 317-323.
Segal, N.L. (2010). Population-based research: Breastfeeding multiple birth infants. Twin Research and Human Genetics, 13, 218-220.
McGuire, S., Segal, N.L., Whitlow, B., Gill, P., & Clausen, J. (2010). Sibling trust and trustworthiness. In K. Rotenberg (Ed.). Interpersonal trust during childhood and adolescence (pp. 133-154). Cambridge, England: Cambridge University Press.
Segal, N.L. (2010). A pair of meetings: Twins (UCLA Center for Society and Genetics) and the 13th International Society for Twin Studies Congress (ISTS, Seoul, South Korea). Twin Research and Human Genetics, 13,508-513.
Segal, N.L., & Marelich, W.D. (2011). Social closeness and gift giving by MZ and DZ twin parents toward nieces and nephews: An update. Personality and Individual Differences, 50, 101-105.
Segal, N.L. (2011). Twin, adoption and family methods as approaches to the evolution of individual differences. In D.M. Buss and P. Hawley (Eds.). The evolution of personality and individual differences (pp. 303-337). Oxford: Oxford University Press.
Segal, N.L. (2011). Zygosity assessment by self-report: Research implications and personal perspectives. Twin Research and Human Genetics, 14, 104-108.
Segal, N.L., Stohs, J.H., & Evans, K. (2011). Chinese twin children reared apart and reunited: First prospective study of co-twin reunions. Adoption Quarterly, 14, 61-78.
Segal, N.L. (2011). Twins’ injuries: Genetic and environmental risks. Twin Research and Human Genetics, 14, 213-216.
Segal, N.L. (2011). Reunited twins: Spouse relations. Twin Research and Human Genetics, 14, 290-294.
Segal, N.L. (2011). Rare conjoined twins. Twin Research and Human Genetics, 14, 490-493.
Segal, N.L. (2011). Siblings We Know and Love — Usually. Science, 334, 1,349-1,350.
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Segal, N.L., McGuire, S.A., & Hoven Stohs, J. (2011, 2012). What virtual twins reveal about general intelligence and other behaviors. Personality and Individual Differences, 53, 405-410; doi: 10.1016/j.paid.2011.11.019.
Segal, N.L. (2011). The value of twin studies: A response to Slate Magazine. Twin Research and Human Genetics, 14, 593-597.
Segal, N.L. (2012). Organ donation: A twin-based perspective. Twin Research and Human Genetics, 15, 262-266.
Segal, N.L. (2012). Dvojcata Asociace: The First International Twins Conference in Prague, Czech Republic Twin Research and Human Genetics, 15, 138-142.
Segal, N.L. (2012). Solvent exposure and Parkinson's disease: Co-twin control study. Twin Research and Human Genetics, 15, 468-471.
Segal, N.L. Personality similarity in unrelated look-alike pairs: Addressing a twin study challenge. Personality and Individual Differences, 54, 23-28.
Segal, N.L. The 14th Congress of the International Society for Twin Studies: Selected Highlights. Twin Research and Human Genetics, 15, 685-690.
McGuire, S.A., and Segal, N.L. Peer network overlap in twin, sibling and friend dyads.Child Development, 84, 500-511.
McGuire, S.A., Segal, N.L., & Hershberger, S.L. (2012). Parenting as phenotype: A behavior genetic approach to understanding parenting. Parenting: Science and Practice, 12, 192-201.
Segal. N.L. (2013). Twin studies. In Dana S. Dunn (Ed.). Oxford Bibliographies in Psychology. New York: Oxford University Press.
Segal, N.L. (2013). Twin Olympians: The hard science and the lives behind it. Twin Research and Human Genetics, 16, 490-494.
**Segal, N.L., McGuire, S.A., Graham, J.L., & Stohs, J.H. (2012). The Fullerton Virtual Twin Study: An update. Twin Research and Human Genetics, 16, 451-454.
Segal, N.L.(2012). Reflections on twin relationships: Twins reared apart and twins of opposite sex. Twin Research and Human Genetics, 15, 788-792.
Segal, N.L. (2012). Twin studies of multiple myeloma. Twin Research and Human Genetics, 16, 645-649.
**Segal, N.L., Graham, J.L. & Ettinger, U. (2013). Unrelated look-alikes: A replicated study of personality similarity and new qualitative findings on social relatedness. Personality and Individual Differences, 55, 169-176.
Segal, N.L. (2013). The twin children of Auschwitz-Birkenau: Conference on Nazi Medicine/Research. Twin Research and Human Genetics, 16, 751-757. doi: 10.1017/thg/201326. http://journals.cambridge.org/repo_A89Q47wx
Segal, N.L. Switched-at-birth twins in the Canary Islands: Revisited. Twin Research and Human Genetics, 16, 916-921.
** Segal, N.L., & Harris, V.A. Psychological issues of monozygotic twins. In I. Blickstein & L.G. Keith (Eds.). Monozygosity. Berlin-New York: Walter de Gruyter (in press).
Segal, N.L. (2013). Twin resunions: the science behind the fascination. Twin Research and Human Genetics, 16, 1,008-1,013.
**Segal, N.L., Munson, J.E., Marelich, W.D., Goetz, A.T., & McGuire, S.A. (2014). Meeting of minds: Tacit coordination in adolescent and adult twins. Personality and Individual Differences, 58, 31-36.
http://dx.doi.org/10.1016/j.paid.2013.09.028
Segal, N.L. (2013). Teaching about twins: College courses and public lectures. Twin Research and Human Genetics, 16, 1,121-1,215.
Segal, N.L. (2014). Stolen twin: Fascination and curiosity. Twin Research and Human Genetics, 17, 56-61.
Segal, N.L., & Mulligan, C.A. (2014). Twins reunited: Scientific and personal perspectives. Twin Research and Human Genetics, 17,134-139.
** Segal, N.L., Horwitz, B.N., & Velazquez, J.M.V. Behavioral genetics: Ethological and evolutionary connections (invited chapter). In: P. LaFrenière and G.E. Weisfeld (Eds.). Evolutionary Science of Human Behavior: An Interdisciplinary Approach (pp. 25-42).. New York: Linus.
Segal, N.L. (2014). Art for twins: Yorùbá artists and their statues. Twin Research and Human Genetics, 17(3), 215-221. doi:10.1017/thg.2014.18.
Segal, N.L., & Cortez, F.A. (2014). Born in Korea-adopted apart: Behavioral development of monozygotic twins raised in the United States and France. Personality and Individual Differences, 70, 97-104.
Segal, N.L., & Marcheco-Teruel, B. (2014). I. "Street of Twins:" Multiple births in Cuba. II. The Cuban Twin Registry: An update. Twin Research and Human Genetics, 17(4), 347-353, doi: 10.1017/thg.2015.25.
Segal, N.L. (2014). The Minnesota Study of Twins Reared Apart: The science behind the fascination. The General Psychologist, 49(1), 18-21, 28.
Segal, N.L. (2014). Tribute to Louis Keith: Twin ans physician extraordinaire. Twin Research and Human Genetics, 17(5), 494-497.
**Segal, N.L., Cortez, F.A., Zettel-Watson, L. Cherry, B.J., Mechanic, M., Munson, J.E., Velázquez, J.M.A., & Reed, B. (2015). Genetic and experiential influences on behavior: Twins reunited at seventy-eight years. Personality and Individual Differences, 73, 110-117.
**Segal, N.L., Horwitz, B.,N., & Velazquez, J.M.V. (2014). Behavioral genetics: Ethological and evolutionary connections. In P. LaFreniere & G.E. Weisfeld (Eds.). Evolutionary science of human behavior: An interdisciplinary approach (pp. 25-42).
Segal, N.L. (2014). College-age twins: University admissions policies. Twin Research and Human Genetics, 17(6), 594-598,
** Velzáquez, J.M., Segal, N.L., & Horwitz, B.N. (2015). Genetic and environmental influences on applied creativity: A reared-apart twin study. Personality and Individual Differences, 75, 141-146.
Segal, N.L. (2015). Highlights from the 15th International Congress of Twin Studies. Twin Research and Human Genetics, 18(1), 108-115.
Segal, N.L. Insights from twin research: Conference at Royal Childrens Hospital, Melbourne, Australia. Twin Research and Human Genetics (in press).
** Segal, N.L., Hur, Y.-M., & Graham, J.L. Korean twins reared apart: Genetic and cultural influences on behavior and health. Adoption Quarterly (in press).
** Harris-Costello, V.A., & Segal, N.L. (2015). The unmet needs of twins with special needs: Diagnostic challenges and service recommendations. Community Practitioner, February issue, 30-33.
Segal, N.L. (2015). Highlights from the 15th International Congress of Twin Studies. Twin Research and Human Genetics, 18(1), 108-115.
Segal, N.L. (2015). Insights from twin research: Conference at Childrens Hospital, Melbourne, Australia, Twin Research and Human Genetics, 18(2), 218-224.
Segal, N.L. (2015). Centenary celebration for Scottish missionary Mary Slessor: A lasting legacy for twins. Twin Research and Human Genetics, 18(3), 328-333.
** Segal, N.L., Tan, T.X., & Graham, J.L. (2015). Twins and virtual twins: Do genetic (as well as experiential) factors affect developmental risks? Journal of Experimental Child Psychology, 136, 55-69.
**Segal, N.L., Li, N.P., Graham, J.L., & Miller, S.A. (2015). Do parents favor their adoptive or biological children? Predictions from kin selection and compensatory models. Evolution and Human Behavior 36(5), 379-388.
Segal, N.L. (2015). Silencing negative voices. In D. Huh (Ed.) The spice of life: Adding meaning by subtracting the unnecessary (pp.155-158). Seoul: Cassiopeia Books.
Segal, N.L. (2015). Zygosity diagnosis: When physicians and DNA disagree. Twin Research and Human Genetics, 18(5), 613-618, doi:10.1017/thg.2015.58
**Segal, N.L., Hur, Y.-M., & Graham, J.L. (2015). Korean twins reared apart: Genetic and cultural influences on behavior and health. Adoption Quarterly, 18(4), 291-310.
Craig, J.M., Segal, N.L., Umstad, M.P., et al. BJOG Debate. Zygosity testing should be recommended for all same sex twins. British Journal of Obstetrics and Gynecology, 122(12), 1,641.
**Segal, N.L., Goetz, A.T., & Maldonado, A.C. (2016). Preferences for visible white sclera in adults, children and autism spectrum disorder children: A test of the Cooperative Eye Hypothesis. Evolution and Human Behavior, 37(1), 35-39.
http://www.sciencedirect.com/science/article/pii/S1090513815000641
Segal, N.L. (2015). The Fourth International Network of Twin Registries: Overview from Osaka. Twin Research and Human Genetics, 18(6), 812-818.
Segal, N.L. (2016). Twinsters the movie: Reared apart twins in real time. Twin Research and Human Genetics, 19(1), 80-85.
Segal, N.L. (2016). Twin legacies: Victor and Vincent McKusick. Twin Research and Human Genetics, 19(2), 158-162. doi; 10/1017/thg.2016.7
Segal, N.L. (2016). Brazilian Twin Registry: A bright future for twin studies. Twin Research and Human Genetics, 19(3), 292-296.
Segal, N.L. (2016). Twin research and the arts: Interconnections. Twin Research and Human Genetics, 19(4), 397-401.
Segal, N.L. The 2016 satellite meeting of the International Society of Twin Studies: An overview. Twin Research and Human Genetics, 19(5), 588-593.
Segal, N.L. (2016). Remembering Irving I. Gottesman: Twin research colleague and friend extraordinaire. Twin Research and Human Genetics, 19(6), 708-719.
Emma Otta, Eloisa de S. Fernandes, Tiziana G. Acquaviva, Tania K. Lucci, Leda C. Kiehl, Marco A. C. Varella, Nancy L. Segal, Jaroslava V. Valentova. (2016). Twinning and multiple birth rates according to maternal age in the city of São Paulo Brazil: 2003-2014. Twin Research and Human Genetics, 19(6), 679-686.
Segal, N.L., Montoya, Y.M., Loke, Y.J., & Craig, J.M. (2017). Identical twins doubly exchanged at birth—Genetic and environmental influences on the adult epigenome. Epigenomics, 9(1), 5-12.
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Kanazawa, S., & Segal, N.L. (2017). Same-sex twins are taller and heavier than opposite-sex twins (but only if breastfed): Possible evidence for sex bias in human breast milk. Journal of Experimental Child Psychology, 156 (4), 186-191.
Segal, N.L. (2017). Situs Inversus Totalis in twins: A brief review and a life history. Twin Research and Human Genetics, 20(1), 90-95. doi:10.1017/thg.2016.101.
Segal, N.L. (2017), Reared-apart Chinese twins: Chance discovery. Twin Research and Human Genetics, 20 (2), 180-185.
Segal, N.L. (2017). Twins reared together and apart: The science behind the fascination. Proceedings of the American Philosophical Society, 161 (1), 1-17.
https://amphilsoc.org/sites/default/files/proceedings/Segal.pdf
Segal, N.L. (2017). Autobiography. In V. Zeigler and T. Shackleford (Eds.). Encyclopedia of Personality and Individual Differences. New York: Springer, doi:10.1007/978-3-319-28099-8_1810-1).
Segal, N.L. (2017). “Biracial”-Looking twins: A new twin type? Twin Research and Human Genetics, 20 (3), 260-265.
Segal, N.L. (2017). Oliver Sacks: Our correspondence about twins. Twin Research and Human Genetics, 20 (4), 363-369.
Segal, N.L. (2017). Twin studies in Brazil: Projects and plans. Twin Research and Human Genetics, 20 (5), 481-488.
Segal, N.L. (2017). Musical interests and talent: Twin jazz musicians and twin studies. Twin Research and Human Genetics, 20(6), 643-648.
Segal, N.L.(2017). Ethological studies using twins: Doing what comes naturally. Human Ethology Bulletin, 32(4), 35-43.
Segal, N.L. (2018). The 16th International Twin Congress: Highlights from Madrid. Twin Research and Human Genetics, 21(1), 643-648.
Segal, N.L. (2018). A possible twin: The 1960s twin study revisited. Twin Research and Human Genetics, 21(2), 155-162.
Segal, N.L. (2018). Revisiting sources of left-handedness in multiple-birth individuals. (Commentary) Proceedings of the National Academy of Sciences, 115(23), 5,832-5,834.
Segal, N.L. (2018). Classic, provocative and/or influential: A twin study sampler Twin Research and Human Genetics, 21(3), 275-280.
Yirmiya-Feldstein, K., Segal, N.L., Bloch, G., & Knafo, A. (2018). Prosocial and self-interested intra-twin pair behavior in monozygotic and dizygotic twin pairs in the early to middle childhood transition. Developmental Science (6 April, 2018, https://doi.org/10.1111/desc.12665,, e12665.
Segal, N.L., Hernandez, B., Graham, J.L., & Ettinger, U. (2018). Pairs of genetically unrelated look-alikes: Further tests of personality resemblance and social affiliation. Human Nature, 29(4), 402-417. online: https://link.springer.com/article/10.1007%2Fs12110-018-9326-2
Segal, N.L. (2018). Symposium in honor of Irving I. Gottesman: Introduction. Twin Research and Human Genetics, 21(4), 281-284,
https://doi.org/10.1017/thg.2018.29
Segal, N.L., Montoya, Y.S., & Becker, E.N. (2018). Twins reared apart and twins in families: The findings behind the fascination. Twin Research and Human Genetics, 21(4), 295-301,
https://doi.org/10.1017/thg.2018.34
Segal, N.L. (2018). Closing remarks--A twin research legacy. Twin Research and Human Genetics, 21(4), 324,
https://doi.org/10.1017/thg.2018.34
Segal, N.L. Human dizygotic twinning: Evolutionary-based explanations. Twin Research and Human Genetics, 21(4), 325-329.
Segal, N.L. (2018). Twins switched at birth: Frequency, life histories, twin relationships and critical issues. Twin Research and Human Genetics, 21(5), 477-483.
Segal, N.L. Twins working together: Collaboration or contest. Twin Research and Human Genetics, 21(6), 563-569.
Varella, M.A.C., Fernandes, E.de S., Arantes, J., Acquaviva, T.G., Lucci, T.K., David, V.F., Bussab, V.S.R., Ribeiro, F.L., Valentova, J.V., Segal, N.L., Otta, E., Twinning as an evolved age-dependent physiological mechanism: Evidence from large Brazilian samples. In Julio Elito, Jr. (Ed.). Multiple Pregnancy. (pp. 427-460). San Bernardino County, CA: Intech Open.
Segal, N. L., Orozco, E. N., Preston, K. J., & Gerkens, D. R. (2019). Nonverbal cognition across genetic and environmentally informative kinships: The case for opposite-sex twin pairs and virtual twins. Journal of Experimental Child Psychology, 182(1), 144-150.
Segal, N.L. (2019). Performing together: Monozygotic twin comedians. Twin Research and Human Genetics, 22(1), 70-74.
Kanazawa, D., & Segal, N.L. (2019). Do monozygotic twins have higher genetic quality than dizygotic twins and singletons? Hints from attractiveness ratings and self-reported health. Evolutionary Biology, 46(2), 164-169. http://link.soringer.com/artcile/10.1007/s11692-019-09470-0
Segal, N.L., Craig, J.M., & Umstad, M.P. (2019). Challenge to the assumed rarity of heteropaternal superfecundation: Findings from a case report. Australian Journal of Forensic Sciences. https://doi.org/10.1080/00450618.2019.1616821
Segal, N.L. (2019). The new sesquizygotic twins and more: Exotic twin types. Twin Research and Human Genetics. 22(3), 195-198, https://doi.org/10.1017/thg.2019.16
Segal, N.L. (2019). Double vision: Eye findings in twins reared apart. Twin Research and Human Genetics, 22(2), 124-127.
Segal, N.L., Montoya, Y.S., Peña, F.Y., Burgos, S., Katz, X. (2019). Eye refraction in doubly exchanged monozygotic twins. Twin Research and Human Genetics, 22(3), 177-182, https:doi.org/10.1017/thg.2019.26. Reprinted in AVACCSA-R (Latin American Society of Cataract and Refractive Surgeons) http://blast.clatinmedia.com/2019/Noviembre/news-alaccsa-noviembre-1/News-Alaccsa_noviembre.html
Segal, N.L. (2019). Co-twin control studies: Natural events, experimental interventions and rare happenings. Twin Research and Human Genetics 22(4), 272-276. doi.10.1017/thg.2019.19
Tafforin, C., & Segal, N.L. (2019). Twins in space: Review and perspectives. Human Ethology Bulletin, 34, 123-129, http://ishe.org/volume-34-2019/twins-in-space-review-and-perspectives/
Segal, N.L. (2019). Evolutionary perspectives on the loss of a twin. In T.K. Shackelford and V. Ziegler-Hill (Eds.). Evolutionary perspectives on death (pp. 25-36). New York: Springer Nature.
Segal, N.L. (2019). The rare sides of twin research: Important to remember. Twin Research and Human Genetics, 22(5), 419-424.
Otta, E., Fernandez, E. de Sousa, Bueno, J. A., dos Leandro, K., Segal, N.L., et al. (2019). The University of San Paulo Twin Panel: Current status and prospects for Brazilian twin studies in behavioral research. Twin Research and Human Genetics, 22(6), 467-474.
**Segal, N.L., & Niculae, F.J. (2019). Fullerton Virtual Twin Project: Overview and 2019 update. Twin Research and Human Genetics, 22(6), 731-734.
Segal, N.L. (2019). Justifying separate experiences for twins: Dorothy Burlingham’s classic twin study. Twin Research and Human Genetics, 22(6), 824-828.
Segal, N.L. (2020). Chapter 39: Multiple missteps: The twin study that should have been. In R. J. Sternberg (Ed.). My biggest research mistake: What I learned from it and what you could learn from it too. (pp. 144-149). Thousand Oaks, CA: Sage.
Ahrenfeldt, L.J., Christensen, K., Segal, N.L., & Hur, Y.-M. (2020). Opposite-sex twin studies of sex differences in physiological, cognitive and behavioral traits. Neuroscience and Biobehavioral Reviews, 108, 322-340.
**Segal, N.L., Arch, D.A.N., Preston, K.S.J., & Marelich, W.D. (2020). Social closeness revisited in monozygotic and dizygotic twin families: Aunt/uncle-niece/nephew relations. Personality and Individual Differences, 157C (Invited paper, Special 40th Anniversary Issue). Online: https://authors.elsevier.com/a/1aRQcheKdkBOK, article number 109815.
Segal, N.L. (2020). Ch. 7 Loss of a twin: The loss of a relationship. In U. Kumpula, J. Kaprio, A. Lavikanen, & I. Moilanen (Eds.) Fascinating twins (Kiehtova kakosus: Monikko sisarusten elamaa, (pp. 199-204). Helsinki, Finland: Gaudeamus.
Segal, N.L. (2020). Twin data: The lives that drive the findings. Twin Research and Human Genetics, 2(1), 61-65
Segal, N.L., Nedelec, J.L, & Costello-Harris, V. (2020). Differences in development in monozygotic twins. In A. Matias, & I. Blickstein (Eds.). Chapter 18. Why are monozygotic twins different: From genetics to environment. pp. 285-295. London: Elsevier.
Segal, N.L. (2020). Twins reared apart: Zygotic division after artificial insemination. Twin Research and Human Genetics, 23(2), 139-143.
Segal, N.L. (2020). Dizygotic twin infants: Controversial case study series. Twin Research and Human Genetics, 23(3), 90-93.
Segal, N.L. (2020). COVID-19: Twin research in progress. Twin Research and Human Genetics, 23(4), 259-263.
Segal, N.L (2020). Twins living apart: Behavioral insights. Twin Research and Human Genetics, 23(5), 300-305.
Segal, N.L. (2020). Remembering John C. Loehlin: “Our Field Has Lost a Lion.” Twin Research and Human Genetics, 23(6), 359-362.
**de Oliveira Landenberger, R., Lucci, T. K., David, V. F., Ferreira, I. F., de Souza Fernandes, E., Segal, N., & Otta, E. (2021). Hierarchy of attachment figures among adult twins and non-twins. Personality and Individual Differences, 170, 110404.
Silver, I.A., Nedelec, J.L., Segal, N.L., & Lonergan. H. (2021). Heteropaternal siblings misclassified as dizygotic twins: A potential biasing factor for heritability estimates. Behavior Genetics, 51(2), 137-143, https://doi.org/10.1007/s10519-020-10039-3
**Reed, B.W., Segal, N.L., & Miller, S.A. (2021), Evolutionary perspective on decreases in grief intensity for deceased twin and non-twin relatives: An update. Personality and Individual Differences, 178 (110822).
Segal, N.L. (2021). Twin types: Variations and common themes. Twin Research and Human Genetics, 24(1), 89-94.
Segal, N.L. (2021). Foreword. In E. Otta and T.K. Lucci (Eds.) Twin studies in behavioral and health research: Current status, prospects and applications (p. i-iii). São Paulo, Brazil: Digital book in open access: USP Open Books Portal, http://www.livrosabertos.sibi.usp.br/portaldelivrosUSP/catalog/book/623
Segal, N.L. (2021). Twins reared apart: History, findings, unique cases and implications. In E. Otta and T.K. Lucci (Eds.). Twin studies in behavioral and health research: Current status, prospects and applications (p. 103-112). Digital book in open access: USP Open Books Portal, http://www.livrosabertos.sibi.usp.br/portaldelivrosUSP/catalog/book/623.
Segal, N. L., Niculae, F. J., Becker, E. N., & Shih, E. Y. (2021). Reared-apart/reared-together Chinese twins and virtual twins: Evolving research program and general intelligence findings. Journal of Experimental Child Psychology, 207, article 105106, July 2021; online: https://authors.elsevier.com/a/1clLz51Y-IFKc).
Segal, N.L. Do males affect twinning events? A review of current findings. Twin Research and Human Genetics, 24(2), 140-144. (First View online, https://www.doi.org/10.1017/thg.2021.8.DOI: https://doi.org/10.1017/thg.2021.8.
Segal, N.L. (2021). Terminating twins: Survival of one. Twin Research and Human Genetics, 24(3), 187-190, doi:10.1017/thg.2021.19.
Segal, N.L., & Nedelec, J.L. Heteropaternal twinning: Unique case of opposite-sex twins with different fathers. Forensic Science International, 327, 110948. https://www.sciencedirect.com/science/article/pii/S0379073821002681 (sent to subscribers October 11, 2021).
Segal, N.L., & Niculae, F.J. (2021/2022). Senatorial signatures: Absence of male-female differences in left-handedness. Politics and the Life Sciences (Spring 2022). doi: 10.1017/pls.2021.9
Segal, N.L. (2021). Twins separated at birth: Across a country and around the world. Twin Research and Human Genetics, 24, 44-50.
Segal, N.L. Kin Detection Cues and Sibling Relationships: Revelations from Twin and Adoption Studies. Commentary on Tanskanen, Danielsbacka, & Rotkirch (2021). Evolution and Human Behavior, 42(6), 491-493. https://doi.org/10.1016/j.evolhumbehav.2021.08.004
Segal, N.L. (2021) Twins with craniosynostosis: An unidentified variant. Twin Research and Human Genetics 24(5), 352-357, (doi.1017/thg.2021.39).
Segal, N.L. (2021). Mysteries of monozygosity: Theories and breakthroughs. Twin Research and Human Genetics, 24(6), 408-412, doi:10.1017/thg.2021.51.
Segal, N.L., & Pratt-Thompson, E. (2022). The 2021 Congress of the International Society for Twin Studies: Twin research at the cutting edge. Twin Research and Human Genetics, 25(1), available online (in press), 1-5.
Segal, N.L., Miller, S.A., & Niculae, F.J. (2022). Twin study of genetic relatedness and bereavement related measures: Updated analyses and the mediating role of grief. Personality and Individual Differences, 194, 111587; https://www.sciencedirect.com/science/article/pii/S0191886922000915?dgcid=autho
Segal, N.L., & Hur, Y.-M. (2022). Personality traits, mental abilities and other individual differences: Monozygotic female twins raised apart in South Korea and the United States. Personality and Individual Differences, 194, 111643; https://www.sciencedirect.com/science/article/pii/S0191886922001477?dgcid=author
Segal, N.L. (2022). Twins’ continuing tales: New evidence reshapes thinking. Twin Research and Human Genetics, 25(2), 101-105. doi:10.1017/thg.2022.12.
Segal, N.L., & Hur, Y.-M. (2022). Personality traits, mental abilities and other individual differences: Monozygotic female twins raised apart in South Korea and the United States. Personality and Individual Differences, 194, 111643. (August 2022); https://www.sciencedirect.com/science/article/pii/S0191886922001477?dgcid=author
Tarnoki, A.D., Tarnoki, D.L., Harris, J., & Segal, N.L. (2022). Introduction to Twin research for everyone: From biology to health, epigenetics, and psychology. pp. xxxv-xxxviii. London: Elsevier.
Segal, N.L. (2022). Ch. 7.4. Growing up as twins: The perspectives of twin researchers. pp. 124-129. In Tarnoki, A.D. Tarnoki, D.L., Harris, J., & Segal, N.L. (Eds.) Twin research for everyone: From biology to health, epigenetics, and psychology. London: Elsevier.
Segal, N.L. & Niculae, F.J. (2022). Ch. 9. Reared apart twins: Background, research, case studies and what they reveal about human development. pp. 139-154. In Tarnoki, A.D., Tarnoki, D.L., Harris, J., & Segal, N.L. (Eds.) Twin research for everyone: From biology to health, epigenetics, and psychology. London: Elsevier.
Tafforin, C., & Segal, N.L. (2022). Ch. 34. An experiment in co-twin control: Adaptation to space travel. pp. 617-623. In Tárnoki, A.D., Tárnoki, D.L., Harris, J., & Segal, N.L. (Eds.) Twin research for everyone: From biology to health, epigenetics, and psychology. London: Elsevier.
Tarnoki, A.D., Tarnoki, D.L., Harris, J., & Segal, N.L. (2022). Conclusion to Twin research for everyone: From biology to health, epigenetics, and psychology. pp. 687-690. London: Elsevier.
Segal, N.L. (2020), Reared-apart and reunited: Extraordinary dynamics. Twin Research and Human Genetics, 25, 165-170.
Segal, N.L. (2022). Twin artists: Unique sources of inspiration and talent. Twin Research and Human Genetics, 25, 206-210.
Segal, N.L. (2022). Unusual behavioral similarities in twins reared apart: Genetic effects, random chance or both? Japanese Journal of Twin Studies 1(1), 1-11, https://jsts.jp.net/wp/wp-content/uploads/2022/12/journal-vol.1.pdf
Ferreira, I., Lucci, T., David, V., Short, P.C., Crispim, A., Beiler, T., Lucci, E., Rocha, V., Grinberg, A., Segal, N.L., Segal, H.; Knafo-Noam, A., & Otta, E. (2022). "Brazilian Portuguese version of twin relationship questionnaire (TRQ-BR): Evidence of validity." Journal of Personality and Social Relationships, 40(2), 483-505 (https://doi.org/10.1177/02654075221117721).
Segal, N.L. (2023). Quadruplets: Risks, outcomes and a set of four. Twin Research and Human Genetics, 25(6), 251-256; (First View), DOI: https://doi.org/10.1017/thg.2022.41.
Richards, G., & Segal, N.L. (2023). Handedness in twins reared apart: A review of the literature and new data. Neuropsychologia, 184, 108523.
Segal, N.L. (2023) From the library of the late Irving I. Gottesman: Memories and treasures. Twin Research and Human Genetics, 26, 127-132, doi:10.1017/thg20.2023.
Segal, N.L. (2023). Role of twins in Waardenburg syndrome: 1916 – present. Twin Research and Human Genetics, 26, 195-198, doi:10.1017/thg.2023.21
Segal, N.L. (2023). Memoirs and autobiographies by twins: Research angles and human interest. Twin Research and Human Genetics (online), https://doi.org/10.1017/thg.2023.21.
Segal, N.L. (2023). The 18th International Twin Congress, and a Look at Twin Research in Wales. Twin Research and Human Genetics, doi: 10.1017/thg.2023.31, (online: https://www.cambridge.org/core/journals/twin-research-and-human-genetics/article/18th-international-twin-congress-and-a-look-at-twin-research-in-walestwin-research-reviews-temperamental-similarities-and-twin-relations-maximizing-twin-designs-rare-tubal-ectopic-pregnancy-twins-academic-selfconcept-formationin-the-media-identical-infant-twins-reunited-birth-of-identicalfraternal-quadruplets-identical-twin-comedians-twice-in-a-lifetime-meeting-an-unrelated-lookalike-twins-in-the-tour-de-france/F35001D9115CD814AEFB767D64E50963).
Segal, N.L. Assortative parenting and cross-parenting: New views of parental preference for
selected children (invited paper: Early Human Development, Special Issue: In B. Fink and J.T. Manning (Eds.). Biological and Psychological Perspectives on Early Human Development (in press); online: https://doi.org/10.1016/j.earlhumdev.2023.105903
Segal, N.L. Nedelec, J., & Salmon, C. (2023). Sibling resemblance and relationships: Through an evolutionary lens. In M. Fisher (Ed.). Handbook of evolutionary psychology. Washington, D.C.: American Psychological Association (in press).
Varella, M.A.C., Fernandes, E. de S., Fridman, C., Lucci, T.K., Defelipe, R.P., Fernandes, L.O., Garcia, AL. O., Antonio, L.U., Segal, N.L., & Otta, E. Determination of twin zygosity in Brazil: A DNA validation of two questionnaires. Estudos de Psicologia--Psychology Studies, Brazil (in press).
Cesar, G.C., de Souza Fernandes, E., Renata Pereira Defelipe, R.P. dos Santos, K.L., David, V.F., Nancy L. Segal, N.L., Otta, E. What's in a name: Similarities and dissimilarities between twins and single-born siblings. Names: A Journal of Onomastics (in press).
Segal, N.L. Partnership with the University of São Paulo Panel of Twins: A four-city tour and more. Twin Research and Human Genetics (in press).
Segal, N.L. Most unusual twin pairs: A look at uterus didelphys. Twin Research and Human Genetics (in press).