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Barreda-Ángeles M, Hartmann T. Experiences of Depersonalization/Derealization Among Users of Virtual Reality Applications: A Cross-Sectional Survey. CYBERPSYCHOLOGY, BEHAVIOR AND SOCIAL NETWORKING 2023; 26:22-27. [PMID: 36595349 DOI: 10.1089/cyber.2022.0152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Previous research shows that virtual reality (VR) users may experience symptoms of depersonalization/derealization (DPDR) immediately after use. However, the impact of long-term VR use on these symptoms has not been analyzed so far. In a preregistered study, we conducted an online survey among a bigger sample of VR users (N = 754) to investigate the relationship between time of use during the past 6 months and the presence of DPDR symptoms. The results support the absence of a linear association between time of VR use and the presence of symptoms, when controlling for other factors. DPDR symptoms are more frequent among younger female users and in those who experience higher levels of embodiment during use. Secondary analyses show that symptoms are more common among newer users and among those who engage in longer sessions. These findings suggest that current common VR experiences are not a cause of long-term DPDR symptoms for the majority of users, yet also encourage further research about specific cases where VR use might trigger DPDR experiences in the long term.
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Affiliation(s)
- Miguel Barreda-Ángeles
- Department of Communication Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Tilo Hartmann
- Department of Communication Science, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Nooripour R, Mazloomzadeh M, Shirkhani M, Ghanbari N, Var TSP, Hosseini SR. Can We Predict Dissociative Experiences Based on Inner Speech in Nonclinical Population by Mediating Role of Sleep Disturbance? J Nerv Ment Dis 2022; 210:607-612. [PMID: 35193997 DOI: 10.1097/nmd.0000000000001499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
ABSTRACT Dissociative experiences include various experiences and behaviors that can cause people to feel disturbed and disconnected from reality. Individuals with dissociative experiences may exhibit various symptoms, particularly in their inner speech. The present study examined how we can predict dissociative experiences based on inner speech in nonclinical populations by mediating the role of sleep disturbance. In this cross-sectional study, data were collected from university students aged 18 to 40 years ( N = 400). They were asked to complete online self-report questionnaires: Varieties of the Inner Speech Questionnaire, Dissociative Experiences Scale, and Pittsburgh Sleep Quality Index. Results showed that there was a relationship between dissociative experiences and sleep disturbance ( r = 0.29, p < 0.001), dialogic inner speech ( r = 0.39, p < 0.001), condensed inner speech ( r = 0.31, p < 0.001), other people's inner speech ( r = 0.46, p < 0.001), evaluative/motivational inner speech ( r = 0.28, p < 0.001), and total inner speech score ( r = 0.48, p < 0.001). Thus, the current study showed a significant relationship among inner speech, dissociative experiences, and sleep disturbances. Inner speech was found to predict dissociative experiences by mediating sleep disturbances in the nonclinical population. Individuals with strong dissociative experiences had high scores for inner speech and sleep disturbance. The present study highlights a new area of research and its relationship to inner speech and dissociation. Future studies could further explore this new area to validate the findings reported here and support the authors' theoretical interpretation.
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Affiliation(s)
- Roghieh Nooripour
- Department of Counseling, Faculty of Education and Psychology, Alzahra University, Tehran
| | - Mohammadreza Mazloomzadeh
- Department of Psychology, Faculty of Education Sciences and Psychology, Ferdowsi University of Mashhad, Mashhad
| | - Milad Shirkhani
- Department of Psychology, Faculty of Education Sciences and Psychology, Ferdowsi University of Mashhad, Mashhad
| | - Nikzad Ghanbari
- Department of Clinical Psychology, Faculty of Psychology and Educational Sciences, Shahid Beheshti University Tehran
| | - Tabassom Saeid Par Var
- Addiction Department, School of Behavioral Sciences and Mental Health, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Ruhollah Hosseini
- Department of Psychology, Faculty of Education Sciences and Psychology, Ferdowsi University of Mashhad, Mashhad
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Krause-Utz A. Dissociation, trauma, and borderline personality disorder. Borderline Personal Disord Emot Dysregul 2022; 9:14. [PMID: 35440020 PMCID: PMC9020027 DOI: 10.1186/s40479-022-00184-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/01/2022] [Indexed: 11/10/2022] Open
Abstract
Dissociation is a complex phenomenon, which occurs in various clinical conditions, including dissociative disorders, (complex) post-traumatic stress disorder (CPTSD, PTSD), and borderline personality disorder (BPD). Traumatic stress is considered an important risk factor, while the etiology of dissociation is still debated. Next to traumatic experiences, temperamental and neurobiological vulnerabilities seem to contribute to the development of dissociation. Stress-related dissociation is a prevalent symptom of BPD, which may interfere with psychosocial functioning and treatment outcome. More research in the field is strongly needed to improve the understanding and management of this complex phenomenon. This article collection brings together research on dissociation and trauma, with a special focus on BPD or sub-clinical expressions of BPD. In this editorial, recent conceptualizations of dissociation and relevant previous research are introduced in order to provide a framework for this novel research.
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Affiliation(s)
- Annegret Krause-Utz
- Department of Clinical Psychology, Institute of Psychology, Leiden University, Leiden, The Netherlands. .,Leiden Institute for Brain and Cognition, Leiden University, Leiden, The Netherlands.
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Rajkumar RP. Dissociative Symptoms and Disorders in Patients With Bipolar Disorders: A Scoping Review. Front Psychiatry 2022; 13:925983. [PMID: 35722564 PMCID: PMC9199377 DOI: 10.3389/fpsyt.2022.925983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 05/03/2022] [Indexed: 12/03/2022] Open
Abstract
Dissociative disorders are an important group of trauma-related disorders associated with significant disability. The co-occurrence of dissociative disorders (DD) and symptoms (DS) in bipolar disorder has been relatively understudied, but there is some evidence that this comorbidity may have significant mechanistic and clinical implications. This paper presents the results of a scoping review of the frequency and correlates of DS and DD in bipolar disorder. Based on the available evidence, DS/DD are more common in bipolar disorder than in healthy controls or in unipolar depression, are related to childhood trauma, and are associated with psychotic symptoms, suicide attempts, and a poorer response to treatment in patients with bipolar disorder. The implications of these findings, and possible mechanistic pathways underlying them, are discussed based on the current literature. Clinicians should be aware of the frequent occurrence of significant DS or DD when treating patients with bipolar disorder. A tentative future research agenda for this field, based on clinical, risk factor-related and neurobiological considerations, is outlined.
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Affiliation(s)
- Ravi Philip Rajkumar
- Department of Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
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Bergouignan L, Nyberg L, Ehrsson HH. Out-of-body memory encoding causes third-person perspective at recall. JOURNAL OF COGNITIVE PSYCHOLOGY 2021. [DOI: 10.1080/20445911.2021.1958823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Lars Nyberg
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
- Umeå Center for Functional Brain Imaging, Umeå University, Umeå, Sweden
- Department of Radiation Sciences, Umeå University, Umeå, Sweden
| | - H. Henrik Ehrsson
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
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Millman LSM, Hunter ECM, Orgs G, David AS, Terhune DB. Symptom variability in depersonalization-derealization disorder: A latent profile analysis. J Clin Psychol 2021; 78:637-655. [PMID: 34487354 DOI: 10.1002/jclp.23241] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 06/09/2021] [Accepted: 08/15/2021] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Depersonalization-derealization disorder (DDD) is characterized by diverse symptomatology overlapping with anxiety and dissociative disorders, but the sources of this variability are poorly understood. This study aims to determine whether symptom heterogeneity is attributable to the presence of latent subgroups. METHOD We applied latent profile analysis to psychometric measures of anxiety, depersonalization-derealization, and dissociation in 303 DDD patients. RESULTS The analysis yielded evidence for five discrete subgroups: three of varying severity levels and two moderate-to-severe classes characterized by differential dissociative symptoms. The five classes reliably differed on several nondissociative symptoms, comorbidities, and factors precipitating their diagnosis but did not significantly differ in other symptoms including anxiety. CONCLUSION These results suggest the presence of three distinct DDD subtypes in the upper severity range that are distinguished by differential expression of detachment and compartmentalization symptoms. Further elucidation of these subtypes has potential implications for the etiology, mechanisms, and treatment of DDD.
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Affiliation(s)
| | | | - Guido Orgs
- Department of Psychology, Goldsmiths, University of London, London, UK
| | - Anthony S David
- Institute of Mental Health, University College London, London, UK
| | - Devin B Terhune
- Department of Psychology, Goldsmiths, University of London, London, UK
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Krause-Utz A, Frost R, Chatzaki E, Winter D, Schmahl C, Elzinga BM. Dissociation in Borderline Personality Disorder: Recent Experimental, Neurobiological Studies, and Implications for Future Research and Treatment. Curr Psychiatry Rep 2021; 23:37. [PMID: 33909198 PMCID: PMC8081699 DOI: 10.1007/s11920-021-01246-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/24/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW The aim of this review article is to give an overview over recent experimental neurobiological research on dissociation in borderline personality disorder (BPD), in order to inform clinicians and to stimulate further research. First, we introduce basic definitions and models that conceptualize dissociation from a transdiagnostic perspective. Then, we discuss recent findings in BPD. RECENT FINDINGS Stress-related dissociation is a key symptom of BPD, closely linked to other core domains of the disorder (emotion dysregulation, identity disturbances, and interpersonal disturbances). The understanding of neurobiological correlates of dissociation across different psychiatric disorders (e.g., dissociative disorders, post-traumatic stress disorder) is steadily increasing. At the same time, studies explicitly focusing on dissociation in BPD are still scarce. There is evidence for adverse effects of dissociation on affective-cognitive functioning (e.g., interference inhibition), body perception, and psychotherapeutic treatment response in BPD. On the neural level, increased activity in frontal regions (e.g., inferior frontal gyrus) and temporal areas (e.g., inferior and superior temporal gyrus) during symptom provocation tasks and during resting state was observed, although findings are still diverse and need to be replicated. Conceptual differences and methodological differences in study designs and sample characteristics (e.g., comorbidities, trauma history) hinder a straightforward interpretation and comparison of studies. Given the potentially detrimental impact of dissociation in BPD, more research on the topic is strongly needed to deepen the understanding of this complex clinical condition.
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Affiliation(s)
- Annegret Krause-Utz
- Institute of Clinical Psychology, Leiden University, Leiden, The Netherlands.
- Leiden Institute for Brain and Cognition (LIBC), Leiden, The Netherlands.
| | - Rachel Frost
- Department of Psychology, King's College London, Institute of Psychiatry Psychology & Neuroscience, London, UK
| | - Elianne Chatzaki
- Institute of Clinical Psychology, Leiden University, Leiden, The Netherlands
| | - Dorina Winter
- Pain and Psychotherapy Research Lab, University of Koblenz-Landau, Landau, Germany
| | - Christian Schmahl
- Department of Psychosomatic Medicine and Psychotherapy, Central Institute of Mental Health Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Bernet M Elzinga
- Institute of Clinical Psychology, Leiden University, Leiden, The Netherlands
- Leiden Institute for Brain and Cognition (LIBC), Leiden, The Netherlands
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Roydeva MI, Reinders AATS. Biomarkers of Pathological Dissociation: A Systematic Review. Neurosci Biobehav Rev 2020; 123:120-202. [PMID: 33271160 DOI: 10.1016/j.neubiorev.2020.11.019] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 08/20/2020] [Accepted: 11/15/2020] [Indexed: 02/06/2023]
Abstract
Pathological dissociation is a severe, debilitating and transdiagnostic psychiatric symptom. This review identifies biomarkers of pathological dissociation in a transdiagnostic manner to recommend the most promising research and treatment pathways in support of the precision medicine framework. A total of 205 unique studies that met inclusion criteria were included. Studies were divided into four biomarker categories, namely neuroimaging, psychobiological, psychophysiological and genetic biomarkers. The dorsomedial and dorsolateral prefrontal cortex, bilateral superior frontal regions, (anterior) cingulate, posterior association areas and basal ganglia are identified as neurofunctional biomarkers of pathological dissociation and decreased hippocampal, basal ganglia and thalamic volumes as neurostructural biomarkers. Increased oxytocin and prolactin and decreased tumor necrosis factor alpha (TNF-α) are identified as psychobiological markers. Psychophysiological biomarkers, including blood pressure, heart rate and skin conductance, were inconclusive. For the genetic biomarker category studies related to dissociation were limited and no clear directionality of effect was found to warrant identification of a genetic biomarker. Recommendations for future research pathways and possible clinical applicability are provided.
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Affiliation(s)
- Monika I Roydeva
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, United Kingdom
| | - Antje A T S Reinders
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, United Kingdom.
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