Vol. 8 No. 2 (2026): April - June 2026
Integrated therapy

Trauma and psychotherapy: an integrated approach between transgenerational transmission, Gestalt therapy, Parts Model and Internal Family Systems

Veronica Rosa
A.S.P.I.C. - Association for the Development of the Individual and the Community, Rome, Italy; formerly Sapienza University of Rome, Faculty of Medicine and Psychology, Rome, Italy
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Published 2026-06-26

Keywords

  • Transgenerational trauma, Epigenetics, Parts model, Internal family systems, Gestalt therapy, Structural dissociation, EMDR, Integrated approach.

How to Cite

Rosa, V. (2026). Trauma and psychotherapy: an integrated approach between transgenerational transmission, Gestalt therapy, Parts Model and Internal Family Systems. Phenomena Journal - International Journal of Psychopathology, Neuroscience and Psychotherapy, 8(2), 116–125. https://doi.org/10.32069/PJ.2021.2.305

Abstract

This work represents an innovative contribution to the integration of complementary perspectives in understanding psychological trauma, with particular focus on the transgenerational dimension of traumatic transmission and therapeutic approaches. The novelty of this work lies in the hypothesis of integrating emerging epigenetic evidence with psychotherapeutic models based on structural dissociation, offering a theoretical-clinical framework that simultaneously recognizes the biological, psychological, and relational roots of trauma. While Eye Movement Desensitization and Reprocessing (EMDR) is established as a consolidated therapy for emergencies and collective traumas, Gestalt therapy and the Parts Model, with their integration, represent a promising and innovative hypothesis. Epigenetic research in recent years suggests that traumatic experiences not only leave lasting biological traces in direct survivors but may be transmitted to subsequent generations through modifications in DNA methylation and gene expression. These biological mechanisms intertwine with complex psychological and relational processes, creating transmission patterns that require sophisticated, multilevel therapeutic approaches. Gestalt therapy, with its emphasis on the “here and now,” body awareness, and contact, offers fundamental contributions. The Parts Model, particularly developed by Janina Fisher through the integration of sensorimotor psychotherapy with the theory of structural dissociation, and Internal Family Systems (IFS) by Richard Schwartz, offers complementary clinical frameworks to address trauma-induced fragmentation. This work proposes an integrated model that acknowledges the intergenerational roots of psychological distress and draws on inherited resources alongside vulnerabilities, opening new directions for both research and clinical practice.

References

  1. Yehuda, R., & Lehrner, A. (2018). Intergenerational transmission of trauma effects: putative role of epigenetic mechanisms. World psychiatry, 17(3), 243-257.
  2. Serpeloni, F., Radtke, K., de Assis, S. G., Henning, F., Nätt, D., & Elbert, T. (2017). Grandmaternal stress during pregnancy and DNA methylation of the third generation: an epigenome- wide association study. Translational psychiatry, 7(8), e1202-e1202.
  3. World Health Organization. (2013). Guidelines for the management of conditions that are specifically related to stress. World Health Organization.
  4. Shapiro, F. (2018). Eye Movement Desensitization and Reprocessing (EMDR) Therapy: Basic Principles, Protocols, and Procedures. 3rd ed. New York: Guilford Press.
  5. Fisher, J. (2017). Healing the fragmented selves of trauma survivors: Overcoming internal self-alienation. Routledge.
  6. Fisher, J. (2017). Guarire la frammentazione del sé. Come integrare le parti di sé dissociate dal trauma.
  7. Fisher, J. (2023). Trasformare l’eredità del trauma: Un protocollo di lavoro con le parti per curare i sintomi del trauma e la frammentazione legata all’attaccamento. Milano: Raffaello Cortina Editore.
  8. Yehuda, R., Daskalakis, N. P., Bierer, L. M., Bader, H. N., Klengel, T., Holsboer, F., & Binder, E. B. (2016). Holocaust exposure induced intergenerational effects on FKBP5 methylation. Biological psychiatry, 80(5), 372-380.
  9. Bowers, M. E., & Yehuda, R. (2016). Intergenerational transmission of stress in humans. Neuropsychopharmacology, 41(1), 232-244.
  10. Jawaid, A., Roszkowski, M., & Mansuy, I. M. (2018). Transgenerational epigenetics of traumatic stress. Progress in molecular biology and translational science, 158, 273-298.
  11. Lehrner, A., Bierer, L. M., Passarelli, V., Pratchett, L. C., Flory, J. D., Bader, H. N., ... & Yehuda, R. (2014). Maternal PTSD associates with greater glucocorticoid sensitivity in offspring of Holocaust survivors. Psychoneuroendocrinology, 40, 213-220.
  12. Zhou, A., & Ryan, J. (2023). Biological embedding of early-life adversity and a scoping review of the evidence for intergenerational epigenetic transmission of stress and trauma in humans. Genes, 14(8), 1639.
  13. Cozolino, L. (2017). The neuroscience of psychotherapy: Healing the social brain. WWNorton & Company.
  14. Schore, A. (2019). The development of the unconscious mind. WW Norton & Company.
  15. Meaney, M. J., & Szyf, M. (2005). Environmental programming of stress responses through DNA methylation: life at the interface between a dynamic environment and a fixed genome. Dialogues in clinical neuroscience, 7(2), 103-123.
  16. Champagne, F. A. (2008). Epigenetic mechanisms and the transgenerational effects of maternal care. Frontiers in neuroendocrinology, 29(3), 386-397.
  17. Kellermann, N. P. (2001). Transmission of Holocaust trauma-An integrative view. Psychiatry, 64(3), 256-267.
  18. Danieli, Y. (1998). Intergenerational handbook of multigenerational legacies of trauma. New York: Plenum Press.
  19. Nestler, E. J., Peña, C. J., Kundakovic, M., Mitchell, A., & Akbarian, S. (2016). Epigenetic basis of mental illness. The Neuroscientist, 22(5), 447-463.
  20. Szyf, M. (2012). The early‐life social environment and DNA methylation. Clinical genetics, 81(4), 341-349.
  21. Bohacek, J., & Mansuy, I. M. (2015). Molecular insights into transgenerational non-genetic inheritance of acquired behaviours. Nature Reviews Genetics, 16(11), 641-652.
  22. O’Donnell, K. J., & Meaney, M. J. (2017). Fetal origins of mental health: the developmental origins of health and disease hypothesis. American Journal of Psychiatry, 174(4), 319-328.
  23. Schore, A. N. (2015). Affect regulation and the origin of the self: The neurobiology of emotional development. Routledge.
  24. Kellerman, N. P. (2001). Psychopathology in children of Holocaust survivors: A review of the research literature. Israel Journal of Psychiatry and Related Sciences, 38(1), 36-46.
  25. Atlas, G. (2015). The enigma of desire: Sex, longing, and belonging in psychoanalysis. Routledge.
  26. Spark, G. M., & Boszormenyi-Nagy, I. (1973). Invisible loyalties: reciprocity in intergenerational family therapy.
  27. McGoldrick, M., Gerson, R., & Petry, S. (2020). Genograms: Assessment and treatment. WW Norton & Company.
  28. Danieli, Y. (1992, March). Preliminary reflections from a psychological perspective. In Seminar on the Right to Restitution, Compensation and Rehabilitation for Victims of Gross Violations of Human Rights and Fundamental Freedoms. Maastricht (pp. 11-15).
  29. Oren, G., Shoshani, A., Samra, N. N., Verbeke, W. J., Vrticka, P., Aisnberg-Shafran, D., & Ein- Dor, T. (2025). From trauma to resilience: psychological and epigenetic adaptations in the third generation of holocaust survivors. Scientific Reports, 15(1), 26193.
  30. Holuka, C., Grova, N., Charalambous, E. G., Le CléacH, J., Turner, J. D., & Mposhi, A. (2024). Transgenerational impacts of early life adversity: from health determinants, implications to epigenetic consequences. Neuroscience & Biobehavioral Reviews, 164, 105785.
  31. Perls, F., Hefferline, R. F., & Goodman, P. (1971). Teoria e pratica della terapia della Gestalt. Astrolabio, Roma, 432.
  32. Wheeler, G. (2000). Beyond Individualism: Toward a New Understanding of Self, Relationship, and Experience. Gestalt Press.
  33. Yontef, G. M. (1993). Awareness, Dialogue and Process: Essays on Gestalt Therapy. Highland, NY: The Gestalt Journal Press.
  34. Polster, E., & Polster, M. (1986). Terapia della Gestalt integrata: Profili di teoria e pratica. Giuffrè.
  35. Taylor, M. (2016). Psicoterapia del trauma e pratica clinica. Corpo, Neuroscienze e Gestalt: Corpo, Neuroscienze e Gestalt. FrancoAngeli.
  36. Kepner, J. I. (2011). Body Process: Working with the Body in Psychotherapy (1987). Gestalt Review, 15(1).
  37. Joyce, P., & Sills, C. (2018). Skills in Gestalt counselling & psychotherapy.
  38. Van der Kolk, B. A. (1994). The body keeps the score: Memory and the evolving psychobiology of posttraumatic stress. Harvard review of psychiatry, 1(5), 253-265.
  39. Van der Kolk, B. (2020). Il corpo accusa il colpo: mente, corpo e cervello nell’elaborazione delle memorie traumatiche. Raffaello Cortina Editore.
  40. Porges, S. W. (2014). La teoria polivagale: fondamenti neurofisiologici delle emozioni, dell’attaccamento, della comunicazione e dell’autoregolazione. Giovanni Fioriti.
  41. Rosa, V., Ruggiero, L. Z., Armenante, O., Santonicola, C., & Iannazzo, A. (2024). Psicoterapia del trauma e intervento blended: un’ipotesi di modello integrato. Phenomena Journal-International Journal of Psychopathology, Neuroscience and Psychotherapy, 6(1), 54-80.
  42. Janet, P. (1904). L’amnésie et la dissociation des souvenirs par l’émotion. F. Alcan.
  43. Herman, J. L. (2015). Trauma and recovery: The aftermath of violence--from domestic abuse to political terror. Hachette UK.
  44. Van der Hart, O., Nijenhuis, E. R., Steele, K., & Liotti, G. (2011). Fantasmi nel sé: Trauma e trattamento della dissociazione strutturale. Raffaello Cortina Editore.
  45. Van der Hart, O., Nijenhuis, E., Steele, K., & Brown, D. (2004). Trauma-related dissociation: Conceptual clarity lost and found. Australian & New Zealand Journal of Psychiatry, 38(11-12), 906-914.
  46. Ogden, P., Pain, C., & Fisher, J. (2006). A sensorimotor approach to the treatment of trauma and dissociation. Psychiatric Clinics, 29(1), 263-279.
  47. Liotti, G., & Farina, B. (2012). Sviluppi traumatici. Eziopatogenesi, clinica e terapia della dimensione dissociativa. G Ital Med Lav Erg, 34(2).
  48. Schwartz, R. C. (1995). Internal Family Systems Therapy. New York (Guilford) 1995.
  49. Schwartz, R. C., & Sweezy, M. (2019). Internal family systems therapy. Guilford Publications.
  50. Anderson, F. G., Sweezy, M., & Schwartz, R. C. (2017). Internal family systems skills training manual: Trauma-informed treatment for anxiety, depression, PTSD & substance abuse.
  51. Twombly, J. H. (2013). Integrating IFS with phase-oriented treatment of clients with dissociative disorder. In Internal family systems therapy (pp. 72-89). Routledge.
  52. Sweezy, M., & Ziskind, E. L. (Eds.). (2013). Internal family systems therapy: New dimensions. Routledge.
  53. Fosha, D., Siegel, D. J., & Solomon, M. F. (Eds.). (2011). The healing power of emotion: Affective neuroscience, development & clinical practice. WW Norton & Company.
  54. Siegal, D. J. (2001). La mente relazionale. Neurobiologia dell’esperienza interpersonale. it.
  55. Ogden, P., Minton, K., & Pain, C. (2012). Il trauma e il corpo: manuale di psicoterapia sensomotoria. Istituto di scienze cognitive.
  56. Steele, K., Dorahy, M. J., & van der Hart, O. (2022). Dissociation versus alterations in consciousness: Related but different concepts. In Dissociation and the dissociative disorders (pp. 66-80). Routledge.
  57. Fisher, J. (2010). Psychoeducational aids for treating psychological trauma.
  58. Smeeth, D., Beck, S., Karam, E. G., & Pluess, M. (2021). The role of epigenetics in psychological resilience. The Lancet Psychiatry, 8(7), 620–629.
  59. Wilker, S., Pfeiffer, A., Kolassa, S., Koslowski, D., Elbert, T., & Kolassa, I. T. (2023). Epigenetics of traumatic stress: The association of NR3C1 methylation and posttraumatic stress disorder symptom changes in response to narrative exposure therapy. Translational Psychiatry, 13, 32.
  60. Dema, B., Onyango, J., Ndugwa, C., Winkler, V., Elbert, T., & Wilker, S. (2021). DNA methylation changes following narrative exposure therapy in a randomized controlled trial with female former child soldiers. Scientific Reports, 11, 18669.