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Dagan, Or

Assistant Professor of Psychology

B.A., Tel Aviv University, Israel M. A.M. A., Tel Aviv University, IsraelM. A., Ph.D., New School for Social Research, NY


Or Dagan, Ph.D., is an Assistant Professor in the Clinical Psychology Doctoral Program at LIU Post. Dr. Dagan received his Ph.D. in Clinical Psychology from the New School for Social Research and completed multiple research postdoctoral fellowship at Stony Brook University, Vrije Universiteit Amsterdam, the Netherlands, and New York University- Abu Dhabi. His research program focuses on the links between relational stressors in the form of insecure attachment representations and both mental and physical health outcomes across the lifespan. Specifically, he is interested in (a) the effect of insecure attachment representations in the development and maintenance of internalizing symptoms across the lifespan, (b) early attachment network to multiple caregivers as a predictor of mental health outcomes, and (c) the role of attachment representations in the effects of early childhood adversity on cellular aging. Through his educational, research and practice platforms, Dr. Dagan is committed to promoting sensitive communication between people, which stands at the heart of well-being.


Attachment Theory, Research, and Interventions; Developmental Psychopathology; Existential Philosophy; Psychodynamic and Relational Psychotherapy.


Peer-reviewed Articles


Nivison, M. D., Dagan, O., Booth-LaForce, C., Roisman, G. I., & Waters, T. (in-principle acceptance). Caregiving Antecedents of Secure Base Script Knowledge Inferred from the Adult Attachment Interview: A Comparative, Pre-Registered Analysis. Infant and Child Development.


Dagan, O., Sagi-Schwartz, A. and van IJzendoorn, M.H. (2021), Attachment networks to multiple caregivers: An introduction to a special issue. New Directions for Child and Adolescent Development, 2021, 5-7.


Dagan, O., Schuengel, C., Verhage, M. L., Van IJzendoorn, M. H., Sagi-Schwartz, A., Madigan, S., Duschinsky, R., Roisman, G. I., Bernard, K., Bakermans-Kranenburg, M., Bureau, J.-F., Volling, B. L., Wong, M. S., Colonnesi, C., Brown, G. L., Eiden, R. D., Fearon, R. M. P., Oosterman, M., Aviezer, O., Cummings, E. M. & The Collaboration on Attachment to Multiple Parents and Outcomes Synthesis (2022). Configurations of mother-child and father-child attachment as predictors of internalizing and externalizing behavioral problems: An individual participant data (IPD) meta-analysis (2021). New Directions for Child and Adolescent Development, 2021, 67– 94.


Dagan, O., & Sagi-Schwartz, A. (2021). Early attachment networks to multiple caregivers: History, assessment models, and future research recommendations. New Directions for Child and Adolescent Development, 2021, 9– 19.


Dagan, O., Groh, A. M., Madigan, S., & Bernard, K. (2021). A lifespan development theory of insecure attachment and internalizing symptoms: Integrating meta-analytic evidence via a testable evolutionary mis/match hypothesis. Brain Sciences, 11(9), 1226. 10.3390/brainsci11091226


Dagan, O., & Bernard, K. (2021). It takes a village: A call for engaging attachment with adjunct disciplines to clarify “in-house” clinical conundrums. Attachment & Human Development, 23(4), 455-467. 10.1080/14616734.2021.1918455


Dagan, O., Buisman, R. S. M., Nivison, M. D., Waters, T. E. A., Vaughn, B. E., Bost, K. K., Bleil, M., Vandell, D. L., Booth-LaForce, C., Roisman, G. I. (in press). Does secure base script knowledge mediate associations between observed parental caregiving during childhood and adult romantic relationship quality and health? Attachment & Human Development, 23(5), 643–664. 10.1080/14616734.2020.1836858


Waters, T. E. A., Facompré, C., Dagan, O., Martin, J., Johnson, W. F., Young, E. S., Shankman, J., Lee, Y., Simpson, J. A., Roisman, G. I. (2020). Convergent validity and stability of secure base script knowledge from late adolescence to midlife. Attachment & Human Development. 23(5), 740-760. 10.1080/14616734.2020.1832548


Dagan, O., Facompré, C. R., Nivison, M. D., Roisman, G. I., & Bernard, K. (2020). Preoccupied and dismissing attachment representations are differentially associated with anxiety in adolescence and adulthood: A meta-analysis. Clinical Psychological Science, 8(4), 614–640. 10.1177/2167702620917455


Dagan, O., Facompré, C. R., & Bernard, K. (2018). Adult attachment representations and depressive symptoms: A meta-analysis. Journal of Affective Disorders, 236, 274-290. 10.1016/j.jad.2018.04.091


Dagan, O., Asok, A., Steele, H., Steele, M., & Bernard, K. (2018). Attachment security moderates the link between adverse childhood experiences and cellular aging. Development and Psychopathology, 30(4), 1211-1223. 10.1017/S0954579417001705


Dagan, O., & Sagi-Schwartz, A. (2018). Early attachment network to mother and father: An unsettled issue. Child Development Perspectives, 12(2), 115-121. 10.1111/cdep.12272




Dagan, O., & Sagi-Schwartz, A. (2020). Infant attachment (to mother and father) and its place in human development: Five decades of promising research (and an unsettled issue). In J. J. Lockman & C. S. Tamis-LeMonda (Eds.), Cambridge Handbook of Infant Development (pp. 687-714). Cambridge University Press.


Dagan, O. (2013). Camus and Popper: On the Absurdity of the Transformations within Scientific Theories. Tel Aviv: Resling Press (in Hebrew).

Oxford University Press.



Lectures and Presentations

Dagan, O. (April 2022). Attachment theory, parenting and developmental trajectories: Early attachment networks and mental health. An online seminar given at the Chilean Society for Emotional Development (SCDE).


Dagan, O., Bakkum, L., & Schuengel, C. (March 2022). Attachment in practice: A Babylonian confusion. A roundtable panel given at LEARN!, an interdisciplinary research institute on learning in an institutional and societal context, Vrije Universiteit Amsterdam, Netherlands.


Dagan, O. (November 2021). Attachment networks to mothers and fathers predict mental health outcomes. A keynote lecture, Ibero-American Attachment Network meeting, Santiago, Chile.


Dagan, O. (November 2021). Attachment networks predict internalizing and externalizing behavior problems. A talk given at the psychology department colloquium series, University of Talca, Chile.


Dagan, O. (October 2021). Scripted attachment representations and their clinical applications. The Developmental Stress and Prevention Lab (director: Dr. Kristin Bernard), the Department of Psychology, Stony Brook University, NY.


Dagan, O. (June 2020). Attachment-informed psychodynamic psychotherapy. A guest talk given at a child clinical supervision group for second year PhD students (supervisor: Dr. Jessica Schleider), the Department of Psychology, Stony Brook University, NY.


Dagan, O. (December 2019). Can and how does attachment get under the skin? The (emerging) case of cellular aging. The Center for the Study of Child Development, Haifa University, Israel.


Dagan, O. (October 2019). The link between adult attachment representations and anxiety in adolescence and adulthood. The Minnesota Longitudinal Study of Risk and Adaptation (MLRSA) meeting, the Institute of Child Development, University of Minnesota, Minneapolis MN.


Dagan, O. (September 2019). Why data collaboration is essential: The case of the unsettled issue of infant attachment network to mother and father. The Faculty of Behavioral and Movement Sciences, Section Clinical Child and Family Studies, Vrije Universiteit Amsterdam, Netherlands.


Dagan, O. (February 2019). Attachment, cellular aging, and psychopathology. The Developmental Affective Neuroscience Lab (director: Dr. Nim Tottenham), Columbia University, New York, NY.


Dagan, O. (March 2017). Attachment and health: Attachment to mother and father as possible etiology? The Society for Research in Child Development Attachment Pre-conference in Austin, TX.


Dagan, O. (March 2014). Attachment and biomarkers of stress regulation. The Department of Psychology, New School for Social Research, New York, NY.


Association for Psychological Science (APS)

Society for Emotion and Attachment Studies (SEAS)

Society for Research in Child Development (SRCD)