European Journal of Trauma & Dissociation最新文献

{"title":"Mobilisation du lien au défunt dans le traitement du deuil chronique en EMDR: métaphore de « la mémoire vivante du disparu »","authors":"Pascale Amara, Guy Gimenez","doi":"10.1016/j.ejtd.2025.100582","DOIUrl":"10.1016/j.ejtd.2025.100582","url":null,"abstract":"<div><h3>Introduction</h3><div>La prise en charge psychothérapeutique des troubles du deuil a fait l’objet de nombreuses recherches et est actuellement un domaine qui tend à s’émanciper d’attitudes thérapeutiques basées sur des postulats cliniques anciens. La clinique de l’attachement ainsi que des approches thérapeutiques innovantes sont venues nourrir la créativité de cliniciens soucieux de l’efficacité thérapeutique. Par exemple s’adresser intérieurement au défunt, questionner le rapport aux rituels, articuler la dimension psychotraumatique, ont ouvert des voies thérapeutiques prometteuses.</div></div><div><h3>Objectif</h3><div>L’importance thérapeutique du réaménagement psychique du lien au défunt apparait de façon récurrente dans les résultats cliniques obtenus dans la thérapie EMDR de patients souffrant de troubles du deuil. Les approches thérapeutiques traditionnelles centrées sur la perte mobilisent la question du désinvestissement de la relation au défunt pour s’ouvrir à de nouveaux liens, mais la question de l’héritage psychique du défunt comme ressource à mobiliser est peu ou incomplètement abordée. L’hypothèse soutenue est que l’ensemble des représentations psychiques issues de la relation au défunt est un support d’étayage pertinent à prendre en compte dans la psychothérapie des endeuillés. Nous présentons un outil clinique favorisant la mobilisation de cette réalité psychique internalisée dans l’espace thérapeutique. Cet outil est une métaphore nommée « la mémoire vivante du disparu ».</div></div><div><h3>Méthode</h3><div>Après un rappel de la clinique des troubles du deuil et une synthèse des approches thérapeutiques recommandées et émergentes, nous présentons du matériel clinique obtenu lors de trois thérapies EMDR de patients souffrant de deuils récents ou pathologiques. Des émergences imaginaires disruptives observées principalement dans la phase de désensibilisation convoquent un lien positif au défunt et projettent le patient dans un réaménagement subjectif pacifié de la relation à ce dernier, amenant une sédation des symptômes douloureux. La métaphore est proposée si le patient n’est pas spontanément connecté à la représentation interne du défunt.</div></div><div><h3>Résultat</h3><div>Il apparait une convergence dans la psychothérapie EMDR d’endeuillés entre la mobilisation d’éléments mnésiques ou représentationnels positifs relatifs au défunt, un réaménagement psychique structurant intégrant le décès, et une amélioration thérapeutique observable sur le plan clinique.</div></div><div><h3>Discussion</h3><div>Cette convergence milite en faveur de l’efficience d’une approche en EMDR mobilisant le réaménagement du lien interne au défunt pour nourrir la nécessaire mutation psychique déclenchée par le décès. Les observations cliniques sont articulées à des cadres conceptuels et des approches cliniques émergentes. La vividité et l’étrangeté de certaines productions imaginaires à effet thérapeutique immédiat nous amènent à questionne","PeriodicalId":29932,"journal":{"name":"European Journal of Trauma & Dissociation","volume":"9 3","pages":"Article 100582"},"PeriodicalIF":1.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144750790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Post-traumatic growth, anxiety, and depression after the death of a loved one in Latin America: A latent class analysis","authors":"Pablo D. Valencia ,&nbsp;Tomás Caycho-Rodríguez ,&nbsp;Andy Sánchez-Villena ,&nbsp;Jonatan Baños-Chaparro ,&nbsp;Julio Torales ,&nbsp;Iván Barrios ,&nbsp;Luis Hualparuca-Olivera","doi":"10.1016/j.ejtd.2025.100548","DOIUrl":"10.1016/j.ejtd.2025.100548","url":null,"abstract":"<div><h3>Background and Objectives</h3><div>Depression and anxiety are common symptoms among individuals who have experienced the death of a loved one; however, their relationship with post-traumatic growth in this population has rarely been examined. This study aimed to identify distinct profiles of post-traumatic growth, depression, and anxiety symptoms in a sample of individuals from Latin America who had experienced the loss of a loved one.</div></div><div><h3>Method</h3><div>A total of 2,572 participants from various Latin American countries took part in this study. The Patient Health Questionnaire-4 and the 8-item Posttraumatic Growth Inventory–Short Form were administered. Latent Class Analysis (LCA) was conducted to identify symptom profiles among individuals who had experienced bereavement.</div></div><div><h3>Results</h3><div>Five distinct profiles were identified: Growth, Average, Combined, Resilient, and Distress. Additionally, factors such as age, gender, time since the loss, and relationship to the deceased were found to differentially influence the patterns of post-traumatic growth, depression, and anxiety.</div></div><div><h3>Conclusion</h3><div>These findings contribute to the limited body of evidence on the coexistence of anxiety, depression, and post-traumatic growth, illustrating that post-traumatic growth may emerge regardless of the presence or absence of other psychological symptoms in a Latin American context.</div></div>","PeriodicalId":29932,"journal":{"name":"European Journal of Trauma & Dissociation","volume":"9 3","pages":"Article 100548"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An osteopathic approach to post-traumatic stress disorder in sexually abused women: a case report","authors":"Adriana Gutiv ,&nbsp;Jérémie Mattatia","doi":"10.1016/j.ejtd.2025.100567","DOIUrl":"10.1016/j.ejtd.2025.100567","url":null,"abstract":"<div><h3>Case presentation</h3><div>Sexual Assaults (SA) frequently lead to post-traumatic stress disorder (PTSD), with psychological and physical repercussions. This case report describes the effect of osteopathic treatment in regulating these symptoms in a woman who reported having been the victim of several assaults.</div></div><div><h3>Materials and methods</h3><div>The patient received five osteopathic treatments in response to neck and shoulder pain, nocturnal bruxism, sleep disorders, headaches and various musculoskeletal pains that the patient correlated chronologically with her various episodes of sexual and physical aggression.</div></div><div><h3>Results</h3><div>A significant improvement was observed in this patient using the PCL-5 scale. The patient also showed a marked improvement in her various somatic symptoms from the third consultation onwards.</div></div><div><h3>Discussion</h3><div>Osteopathy could be considered as a complementary, non-substitutive approach to psychological care. Several studies relating to PTSD have highlighted the added value of a bodily approach in helping patients progress towards recovery. This therapy has already been the subject of clinical cases with similar results in the context of war trauma.</div></div><div><h3>Conclusion</h3><div>The osteopathic approach could be a valuable aid in the management of post-traumatic stress linked to sexual assault. It notably could be a means of evoking in a different way the various physical sufferings that are sometimes imperceptible to imaging and to the various medical physical examinations.</div></div>","PeriodicalId":29932,"journal":{"name":"European Journal of Trauma & Dissociation","volume":"9 3","pages":"Article 100567"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trouble dissociatif complexe et régression dans un contexte de traumatisme transgénérationnel: Étude de cas clinique intégrative","authors":"Rimmel Ainad-Tabet,&nbsp;Rahma Nefzi","doi":"10.1016/j.ejtd.2025.100583","DOIUrl":"10.1016/j.ejtd.2025.100583","url":null,"abstract":"<div><h3>Introduction</h3><div>Dissociative disorders often emerge as a response to early and persistent trauma, particularly in contexts of psychosocial and familial adversity.</div></div><div><h3>Clinical observation</h3><div>We present the case of a 50-year-old woman with a chronic dissociative disorder in a context marked by transgenerational trauma, family overload, and socioeconomic precarity. Symptoms included dissociative episodes, severe memory disturbances, regressive behaviors, and pseudodementia-like features.</div></div><div><h3>Results</h3><div>Neuropsychological assessments and medical investigations ruled out any neurodegenerative pathology. An integrative care approach — including psychiatric hospitalization, psychotherapeutic follow-up, and family support — led to a stabilization of dissociative episodes and improved functional autonomy.</div></div><div><h3>Conclusion</h3><div>This case highlights the importance of considering complex trauma and family history when assessing dissociative disorders. A global therapeutic strategy focused on psychological safety, emotional needs, and family engagement can foster a favorable clinical outcome.</div></div><div><h3>Introduction</h3><div>Les troubles dissociatifs apparaissent souvent en réponse à des traumatismes précoces et persistants, notamment dans des contextes socio-familiaux précaires.</div></div><div><h3>Observation clinique</h3><div>Nous présentons le cas d’une femme de 50 ans présentant un trouble dissociatif chronique, dans un contexte de traumatismes transgénérationnels, de surcharge familiale et de précarité psychosociale. Les symptômes incluent des absences, des troubles mnésiques sévères, des comportements régressifs et des signes pseudodémentiels.</div></div><div><h3>Résultats</h3><div>Le bilan neuropsychologique et les examens médicaux ont exclu une pathologie neurodégénérative. Une prise en charge intégrative, incluant une hospitalisation, un suivi psychothérapeutique et le soutien familial, a permis une stabilisation des épisodes dissociatifs et une amélioration de l’autonomie fonctionnelle.</div></div><div><h3>Conclusion</h3><div>Ce cas illustre l’importance de prendre en compte les facteurs traumatiques complexes et l’histoire familiale dans l’évaluation des troubles dissociatifs. Une approche globale centrée sur la sécurité psychique, le soutien familial et la reconnaissance des besoins affectifs permet une évolution favorable.</div></div>","PeriodicalId":29932,"journal":{"name":"European Journal of Trauma & Dissociation","volume":"9 3","pages":"Article 100583"},"PeriodicalIF":1.9,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Posttraumatic growth in children and adolescents induced by the COVID-19 pandemic: A scoping review","authors":"Alexandra Tamiolaki ,&nbsp;Argyroula Kalaitzaki","doi":"10.1016/j.ejtd.2025.100563","DOIUrl":"10.1016/j.ejtd.2025.100563","url":null,"abstract":"<div><div>The COVID-19 pandemic, a highly challenging life experience, may also be a chance for posttraumatic growth (PTG). This scoping review aimed to summarise the available evidence on PTG among children and adolescents induced by COVID-19 by reporting rates and identifying potential influencing factors. The literature search yielded twenty-one articles from eleven countries which were eventually included. Findings revealed heterogenous PTG prevalence rates, ranging from low to moderate/high, and scattered facilitators, including socio-demographic, psychological, and COVID-19-related factors, with relational factors (i.e., social support) consistently highlighted. Gaps in the literature were also identified, with the lack of robust longitudinal studies and the exploration of the illusory PTG being fundamental. These findings can inform public health authorities, policymakers, and clinicians to design and implement interventions to promote children's and adolescents’ growth in times of similar crises.</div></div>","PeriodicalId":29932,"journal":{"name":"European Journal of Trauma & Dissociation","volume":"9 3","pages":"Article 100563"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144291427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Psychological methods and techniques for overcoming the emotional state of refugees (mothers, children, and adolescents) fleeing war","authors":"Svitlana Khadzhyradieva ,&nbsp;Marianna Todorova ,&nbsp;Mariana Palchynska","doi":"10.1016/j.ejtd.2025.100555","DOIUrl":"10.1016/j.ejtd.2025.100555","url":null,"abstract":"<div><h3>Background</h3><div>Russia’s full-scale invasion of Ukraine has led to an unprecedented need for effective psychosocial support methods for refugees, most of whom are women and children.</div></div><div><h3>Objective</h3><div>The aim of this study was to systematise the experience of psychosocial support professionals to create a comprehensive support system for Ukrainian refugees.</div></div><div><h3>Method</h3><div>Based on in-depth interviews with 30 experts working with refugees in Poland, Germany and Norway, the study examined the specifics of providing psychological assistance at different stages of adaptation.</div></div><div><h3>Results</h3><div>The study showed the dynamics of refugees’ psychological states during displacement: from the acute phase in the war zone, through the period of evacuation and arrival at a new place, to the stage of adaptation six months after resettlement. Experts identified methods of work at each stage and outlined nine main categories of psychological assistance. A comprehensive mentoring programme was developed, taking into account the specifics of working with different age groups and the socio-cultural characteristics of the host countries. Based on the analysis of expert experience, a structured system of psychological support for refugees was created, with specific recommendations on the use of various methods.</div></div><div><h3>Conclusion</h3><div>The practical significance of the study lies in the development of a training programme for specialists in the field of psychosocial assistance and the implementation of a differentiated approach to working with refugees at different stages of adaptation.</div></div>","PeriodicalId":29932,"journal":{"name":"European Journal of Trauma & Dissociation","volume":"9 3","pages":"Article 100555"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144223621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The utilisation of deep brain reorienting (DBR) in the treatment of two clients with dissociative identity disorder (DID)","authors":"Anna Gerge","doi":"10.1016/j.ejtd.2025.100579","DOIUrl":"10.1016/j.ejtd.2025.100579","url":null,"abstract":"&lt;div&gt;&lt;h3&gt;Objective&lt;/h3&gt;&lt;div&gt;To (i) describe how the deep brain reorienting (DBR) theory can be applied in understanding the development of dissociative identity disorder (DID) and (ii) describe the implementation of the DBR method in two single cases with clients with DID.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Methods&lt;/h3&gt;&lt;div&gt;This study aimed to assess the effectiveness of deep brain reorienting psychotherapy (DBR) related to the DBR theory as a lens of understanding of the development and treatment of DID, exemplified with two single-case vignettes of clients presenting DID. In the first part of the paper, the theory of DBR is briefly discussed in relation to the development of DID, a condition where severe relational trauma and adjacent childhood traumatisation is hypothesized to be connected to the development of the symptomatology. In the second part, two single-case studies with two DID-clients diagnosed with SCID-D aim to provide initial evidence of how clients with DID experienced and responded to DBR therapy as part of longer phase specific therapies. The client of case I was treated with 30 DBR sessions and the client of case II was treated with 70 DBR sessions. Their pre- and post-DBR treatment measures consisted of instruments to measure PTSD and complex PTSD symptoms, psychoform and somatoform dissociation, general symptomatology, and access to positive states of mind. The outcome measures were assessed through percentage of nonoverlapping data (PND) a nonparametric measure used to assess the effectiveness of interventions in single-case experimental designs (SCEDs). The clients also provided verbal and written statements regarding their experiences during and after the DBR intervention.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Results&lt;/h3&gt;&lt;div&gt;After the introduction of DBR in their therapies, when measured by the posttraumatic checklist (PCL-5), the international trauma questionnaire (ITQ), the somatoform dissociation questionnaire (SDQ-5), the Dissociative Experiences Scale II (DES-II), the DES-taxon (DES-T), the Symptom Checklist–90 revised (SCL–90-R), the symptomatology of client I was significantly lowered on all measures apart from the SDQ-5 when analysed with PND. For client II the measurements on PCL-5, SDQ-5 and SCL-90-R were significantly lowered. Their self-assessed positive states of mind, measured with the PSOM-scale, were heightened. Both clients expressed that DBR was a valuable treatment modality through their summarized verbal and written statements.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Conclusions&lt;/h3&gt;&lt;div&gt;After 30 respectively during 70 DBR sessions, the clients' dissociation and comorbid symptoms decreased significantly, as measured by self-assessments measures and analysed with PND. Thus, a preliminary cautious enthusiasm is reasonable. Clients with DID may benefit from DBR. Future research is required to address generalizability to a larger population of dissociative clients. To examine whether DBR can be a treatment of choice for highly dissociative clients, includi","PeriodicalId":29932,"journal":{"name":"European Journal of Trauma & Dissociation","volume":"9 3","pages":"Article 100579"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144696642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detention and psychological trauma during Gazacide: A qualitative study","authors":"Bilal Hamamra ,&nbsp;Fayez Mahamid ,&nbsp;Dana Bdier ,&nbsp;Asala Mayaleh","doi":"10.1016/j.ejtd.2025.100575","DOIUrl":"10.1016/j.ejtd.2025.100575","url":null,"abstract":"<div><div>This study examines the detention, torture, and mistreatment of Palestinians following the events of October 7, 2023. The research involved 30 male detainees from Gaza. By July 2024, the number of detainees had doubled within a year, highlighting the Israeli deliberate strategy to suppress Palestinian resistance and instill pervasive fear among Palestinians. This research analyzes the physical and psychological abuse inflicted on detainees, including sexual violence, sensory deprivation, and prolonged isolation. Furthermore, the study explores the secondary trauma experienced by detainees' families, exacerbating social and economic pressures within Palestinian communities. Despite substantial evidence of human rights violations, international responses remain inadequate, allowing these Israeli abuses of Palestinian detainees to continue unchecked. However, the resilience of detainees through various coping mechanisms, such as community support and personal resilience strategies, offers a glimpse of hope. This research highlights the urgent need for enhanced international intervention, comprehensive mental health support, and robust accountability measures to address and mitigate the enduring trauma and genocidal actions perpetrated through arbitrary detention and torture in Gaza.</div></div>","PeriodicalId":29932,"journal":{"name":"European Journal of Trauma & Dissociation","volume":"9 3","pages":"Article 100575"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hibuki therapy as a method of psychological support for war trauma in Ukrainian children","authors":"Dafna Maksimov Sharon ,&nbsp;Tetiana Melnychuk ,&nbsp;Lesia Inzhyievska ,&nbsp;Alona Sadykina ,&nbsp;Valeriia Shynkarova","doi":"10.1016/j.ejtd.2025.100546","DOIUrl":"10.1016/j.ejtd.2025.100546","url":null,"abstract":"<div><div>This comprehensive study delves into the effectiveness of Hibuki therapy, a unique psychological intervention blending psychoanalytic principles and art therapy techniques, in supporting children who have suffered trauma due to the ongoing war in Ukraine. In this comprehensive study conducted from September 2022 to March 2023, we evaluated the efficacy of Hibuki therapy across a diverse cohort of 400 Ukrainian children, each affected by PTSD due to the war in Ukraine. These children, representing a wide range of regions within Ukraine, were methodically divided into two groups: a control group and an experimental group, with each group consisting of 200 children. The study scrutinizes the impact of Hibuki therapy, a psychological intervention uniquely combining psychoanalytic principles with art therapy techniques. This approach was specifically tailored to assist children who have endured the trauma associated with the ongoing conflict. By integrating sensory integration and other neuropsychological methods, the study enhanced the scope of traditional art therapy to address the complex needs more effectively of traumatized children. Our findings indicate significant progress in the children's emotional expression, stress management capabilities, and social engagement. These improvements highlight the potential of Hibuki therapy as an efficacious tool in aiding the trauma recovery process. Crucially, the involvement of parents emerged as a pivotal factor in the healing journey, emphasizing the necessity of a supportive and nurturing environment. The study underscores the value of bespoke therapy approaches that acknowledge the varied responses and healing trajectories of children. These insights make a substantial contribution to the ongoing discourse in child-centered, innovative, and holistic trauma therapy approaches, especially pertinent in areas plagued by conflict. The outcomes of this research pave the way for developing adaptable, culturally attuned trauma therapies, emphasizing the importance of continuous innovation in child psychology and trauma treatment methods.</div></div>","PeriodicalId":29932,"journal":{"name":"European Journal of Trauma & Dissociation","volume":"9 3","pages":"Article 100546"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144099706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The cortical functional connectivity basis of dissociative absorption tendency: A study using weighted Phase Lag Index","authors":"Shun Sasaki ,&nbsp;Hideki Ohira ,&nbsp;Masahiro Kawahara","doi":"10.1016/j.ejtd.2025.100570","DOIUrl":"10.1016/j.ejtd.2025.100570","url":null,"abstract":"<div><h3>Background</h3><div>Dissociative absorption is a dissociative experience characterized by deep immersion in activities such as imagination and daydreaming, leading to a diminished awareness of surroundings. Previous research has suggested that dissociative experiences may be associated with lower cortical functional connectivity.</div></div><div><h3>Purpose</h3><div>This study aimed to investigate the relationship between dissociative absorption tendency and resting-state electroencephalographic (EEG) functional connectivity using the weighted Phase Lag Index (wPLI).</div></div><div><h3>Methods</h3><div>Forty-four healthy participants underwent resting-state EEG recordings. Dissociative absorption tendency was assessed using the Dissociative Experiences Scale (DES). Functional connectivity was analyzed across multiple frequency bands using wPLI, and spectral power was also examined.</div></div><div><h3>Results</h3><div>Significant negative partial correlations were found between dissociative absorption tendency and functional connectivity in the delta (C3–P3, C3–T6, T4–T6) and theta (P4–O1) bands, with Bayes factors exceeding 3. In contrast, positive partial correlations were observed in the alpha2 (Fp1–T3, F3–T3) band. Spectral power analysis further indicated higher delta power in individuals with higher dissociative absorption tendency.</div></div><div><h3>Conclusions</h3><div>The lower functional connectivity in the delta and theta bands is consistent with previous research. In contrast, the alpha2 band exhibited a higher connectivity pattern, suggesting the need for a more comprehensive investigation of its relationship with cortical neural activity across different frequency bands. Based on our findings, the relationship between dissociative absorption, functional connectivity, and a mixed state between wakefulness and sleep is discussed.</div></div>","PeriodicalId":29932,"journal":{"name":"European Journal of Trauma & Dissociation","volume":"9 3","pages":"Article 100570"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}