The dissociative subtype of PTSD in women with substance use disorders: Exploring symptom and exposure profiles

Childhood and Adult Sexual Violence Exposures as Predictors of PTSD, Dissociation, and Substance Use in Women in Jail

Women involved in the criminal legal system report high rates of interpersonal violence, particularly sexual violence, and mental health problems. Although existing research has linked experiences of interpersonal violence to multiple negative mental health outcomes, few researchers have examined concurrent psychopathology as an outcome of child and adult sexual violence in system-involved women. The purpose of this study was to examine child sexual abuse (CSA) and adult sexual violence, while controlling for other forms of interpersonal violence, as predictors of current symptoms of posttraumatic stress disorder (PSTD), substance use disorder (SUD), and dissociation in women in jail in the Mountain West. Randomly selected participants (N = 146) completed clinician-administered measures of trauma histories and mental health symptoms. The majority of the women (73%) reported experiences of CSA and about half reported experiences of adult sexual violence. Over half of the women reported symptoms consistent with current probable PTSD, about 20% reported dissociation symptoms in a clinical range, and over 70% met criteria for a SUD in the past year. The proposed model was tested with path analysis. CSA significantly predicted current symptoms of PTSD while adult sexual violence exposure predicted symptoms of SUD and dissociation. These results illustrate the high rates of sexual violence exposure as well as the complexity of mental health needs associated with these exposures in system-involved women. Findings highlight the need to comprehensively assess incarcerated women's trauma exposure and psychological distress to better meet the needs of this population.

A latent class analysis of dissociative PTSD subtype among Chinese adolescents following the COVID-19 pandemic and lockdown

BACKGROUND

The COVID-19 pandemic and related policies have amplified the vulnerability of adolescents to the development of posttraumatic stress disorder (PTSD) and dissociation symptoms. This study sought to explore the profile patterns and psychopathological characteristics of co-occurring PTSD and dissociation symptoms in Chinese adolescents.

METHODS

A total of 57,984 junior and senior high school students in Deyang City, China were recruited between July 13 and July 19, 2020. PTSD and dissociation symptoms, risk factors, and functional impairment variables were assessed using the Global Psychotrauma Screen for Teenagers (GPS-T) instrument. Latent class analysis (LCA) was employed to examine the phenomenology and risk factors of co-occurring PTSD and dissociation symptoms. Analysis of Variance (ANOVA) was utilized to investigate differences in COVID-19 pandemic-related exposure and functional impairment across distinct symptom profiles.

RESULTS

A 4-class model was selected as the optimal solution, comprising subgroups of low symptom, predominant PTSD symptom, predominant dissociation symptom, and PTSD-dissociation symptom. Class membership could be significantly predicted by other stressful experiences, social support, childhood maltreatment and psychiatric histories. The PTSD-dissociation symptom class exhibited the most severe COVID-19 pandemic-related exposure and functional impairment among all classes.

LIMITATIONS

The cross-sectional design, Chinese cultural background, online survey method and oversimple measurements were the limitations.

CONCLUSIONS

Our findings extend existing knowledge about the coexisting patterns of PTSD and dissociation symptoms in adolescents, which could assist in identifying high-risk youths. Furthermore, our findings offer recommendations for shaping public health policies and formulating effective clinical interventions for adolescents following the COVID-19 pandemic and lockdown.

Childhood trauma is linked to abnormal static-dynamic brain topology in adolescents with major depressive disorder

Childhood trauma is a leading risk factor for adolescents developing major depressive disorder (MDD); however, the underlying neuroimaging mechanisms remain unclear. This study aimed to investigate the association among childhood trauma, MDD and brain dysfunctions by combining static and dynamic brain network models. We recruited 46 first-episode drug-naïve adolescent MDD patients with childhood trauma (MDD-CT), 53 MDD patients without childhood trauma (MDD-nCT), and 90 healthy controls (HCs) for resting-state functional magnetic resonance imaging (fMRI) scans; all participants were aged 13-18 years. Compared to the HCs and MDD-nCT groups, the MDD-CT group exhibited significantly higher global and local efficiency in static brain networks and significantly higher temporal correlation coefficients in dynamic brain network models at the whole-brain level, and altered the local efficiency of default mode network (DMN) and temporal correlation coefficients of DMN, salience (SAN), and attention (ATN) networks at the local perspective. Correlation analysis indicated that altered brain network features and clinical symptoms, childhood trauma, and particularly emotional neglect were highly correlated in adolescents with MDD. This study may provide new evidence for the dysconnectivity hypothesis regarding the associations between childhood trauma and MDD in adolescents from the perspectives of both static and dynamic brain topology.

Women with PTSD and Substance Use Disorders in a Research Treatment Study: A Comparison of those with and without the Dissociative Subtype of PTSD

Significant differences in clinical features have been reported in women with substance use disorders (SUDs) between those with the dissociative subtype of posttraumatic stress disorder (D-PTSD) compared to those without, namely more severe trauma histories, PTSD symptoms, and general psychopathology. This presentation reports on a group of 88 women with PTSD and SUD taking part in a research treatment study. All women were assessed using the Clinician Administered PTSD Scale for DSM-5 (CAPS-5) and were categorized into those with (n = 23, 26%) and without (n = 65, 74%) D-PTSD. Assessments for SUDs were via the Multi-International Neuropsychiatric Inventory, Seventh Version (MINI-7). Compared to those without D-PTSD, those with D-PTSD had significantly higher CAPS-5 scores (50.5 ± 9.9 v. 39.6 ± 8.8), greater number of PTSD symptoms (16.4 ± 2.6 v. 14.2 ± 2.4), more alcohol use disorder (AUD) (65.2% v. 30.8%), and more non-cocaine stimulant use disorder (34.8% v. 12.3%). No significant differences were found for other SUDs. These women with SUDs and D-PTSD have higher degrees of PTSD severity as well as unique clinical presentations. Future research is needed to explore the significance of these findings for clinical assessment and treatment.

Prevalence, Clinical Features, and Psychological Characteristics of Dissociative Subtype of Posttraumatic Stress Disorder in Chinese Prisoners

This study aimed to examine prevalence, clinical symptoms, and psychological characteristics of D-PTSD in a sample of Chinese prisoners with probable PTSD. A total of 1458 male prisoners were recruited from a large prison in Guangdong, China. Participants completed self-administrated questionnaires that assessed PTSD and dissociative symptoms, psychopathology, emotion regulation, emotional expressivity, social pleasure, traumatic events, and social support. According to DSM-5 criteria, participants were classified into four groups: D-PTSD, PTSD only, derealization/depersonalization (DD) only, and neither. The proportions of D-PTSD, PTSD only, DD only and neither were 2.5%, 4.7%, 2.4%, and 92.2%, respectively. PTSD symptoms and emotion regulation difficulties were distinguishing for the four groups: PTSD symptoms declined gradually in the order of D-PTSD, PTSD only, DD only, and neither, while emotion regulation difficulties declined in an order from D-PTSD, DD only, and PTSD only to neither, all ps < .001. D-PTSD and DD only had higher depressive and dissociative symptoms than PTSD only and the neither groups, all ps < .001. D-PTSD also had more borderline personality symptoms, emotion regulation difficulties, and more negative emotional expressivity than PTSD only and DD only, all ps < .05. Logistic regressions indicated that D-PTSD reported lower social support compared to PTSD only (OR = 0.95, p < .01), DD only (OR = 0.96, p < .05) and neither (OR = 0.93, p < .001). D-PTSD is common in probable PTSD in prisoners and is associated with complex clinical presentations as well as emotional processing. Social support is an important protective factor of D-PTSD.

A trauma model of substance use: Elaboration and preliminary validation

The current study expands on and integrates previous theoretical models concerning the pathways that link child maltreatment to substance use disorder. The proposed model, based on the self-medication hypothesis, suggests that experiences of neglect and abuse during childhood can lead to substance use and abuse both directly and indirectly, via dissociation resulting from failed attempts to integrate experiences of maltreatment in childhood. The model was tested on ten substances (painkillers, stimulants, sedatives, marijuana, cocaine, ecstasy, hallucinogens, heroin, inhalants, and methamphetamine) via structural equation modeling (SEM) in a sample comprising 1040 community-dwelling adults (67 % women) aged between 18 and 78 (M = 29.55, SD = 11.37). Fit indexes of the SEM were good, thus supporting the hypothesized model. Specific forms of child maltreatment were related to increased use of specific substances; however, experience of childhood neglect (both physical and emotional) was found to have a central role in predicting use of most substances. Although no single pathway can fully explain the origins of substance abuse, the current study provides evidence of a critical developmental pathway to it, with implications for theory and clinical practice.

Prevalence of the dissociative subtype of post-traumatic stress disorder: a systematic review and meta-analysis

The dissociative subtype of post-traumatic stress disorder (PTSD-DS) was introduced in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), and is characterised by symptoms of either depersonalisation or derealisation, in addition to a diagnosis of post-traumatic stress disorder (PTSD). This systematic review and meta-analysis sought to estimate the point prevalence of current PTSD-DS, and the extent to which method of assessment, demographic and trauma variables moderate this estimate, across different methods of prevalence estimation. Studies included were identified by searching MEDLINE (EBSCO), PsycInfo, CINAHL, Academic Search Complete and PTSDpubs, yielding 49 studies that met the inclusion criteria (N = 8214 participants). A random-effects meta-analysis estimated the prevalence of PTSD-DS as 38.1% (95% CI 31.5-45.0%) across all samples, 45.5% (95% CI 37.7-53.4%) across all diagnosis-based and clinical cut-off samples, 22.8% (95% CI 14.8-32.0%) across all latent class analysis (LCA) and latent profile analysis (LPA) samples and 48.1% (95% CI 35.0-61.3%) across samples which strictly used the DSM-5 PTSD criteria; all as a proportion of those already with a diagnosis of PTSD. All results were characterised by high levels of heterogeneity, limiting generalisability. Moderator analyses mostly failed to identify sources of heterogeneity. PTSD-DS was more prevalent in children compared to adults, and in diagnosis-based and clinical cut-off samples compared to LCA and LPA samples. Risk of bias was not significantly related to prevalence estimates. The implications of these results are discussed further.

The Impact of Child Abuse and Dissociation on Psychiatric Comorbidity and Self-Concealment Among Prisoners in China

Child abuse is a common experience among prisoners in China and associated with elevated psychiatric comorbidity. However, the association between child abuse profiles and dissociation is unclear. The extent to which the relationship between these profiles and dissociation might influence psychiatric comorbidity and self-concealment is also unclear. This study examined the impact of this relationship on the preceding outcomes among prisoners in China using Latent Class Analysis. Four hundred and ninety-six male prisoners from China completed questionnaires measuring child abuse, dissociation, self-concealment, and psychiatric comorbidity. A three-class solution was achieved: Class 1 (neglected with moderate dissociation) prisoners had a minimal level of abuse, the highest level of neglect experience, and a medium level of dissociation; Class 2 (low neglect with low dissociation) prisoners also had a minimal level of abuse but lower levels of neglect experience and dissociation; Class 3 (abused and neglected with high dissociation) prisoners had high levels of child abuse, neglect, and dissociation. Controlling for age, Class 3 reported significantly higher psychiatric comorbidity and self-concealment than the other two classes. Class 1 was more depressed than Class 2; Class 2 was more likely to engage in self-concealment than Class 1. To conclude, the kinds of childhood maltreatment experienced by prisoners and their readiness to detach from distressing emotions can influence the severity of current distress symptoms and the tendency to conceal things about themselves.

The Role of Implicit Memory in the Development and Recovery from Trauma-Related Disorders

Post-traumatic Stress Disorder is a chronic condition that occurs following a traumatic experience. Information processing models of PTSD focus on integrating situationally triggered sensory-emotional memories with consciously accessible autobiographical memories. Review of the nature of implicit memory supports the view that sensory-emotional memories are implicit in nature. Dissociation was also found to be associated with the development and severity of PTSD, as well as deficits in autobiographical memory. Moreover, disorganized attachment (DA) was associated with greater degrees of dissociation and PTSD, and like the defining neural activation in PTSD, was found to be associated with basal ganglia activity. In addition, subcortical neuroception of safety promotes a neurophysiological substrate supportive of social engagement and inhibition of fear-based responses. Furthermore, activation of representations of co-created imagined scenes of safety and secure attachment are associated with increases in this neurophysiological substrate. Repeated priming of secure attachment imagery was associated with modification of internal working models of DA along with reductions in dissociation and recovery from complex PTSD. In conclusion, it is posited that adequate recovery from extensive trauma experiences requires more than conscious elaboration of traumatic autobiographical memories and that the application of implicit nonconscious memory modification strategies will facilitate more optimal recovery.

Associations among betrayal trauma, dissociative posttraumatic stress symptoms, and substance use among women involved in the criminal legal system in three US cities

BACKGROUND

Betrayal trauma, as defined by (Freyd, 1996), refers to a subcategory of trauma characterized by a significant violation of trust surrounding interpersonal maltreatment (physical, sexual, or emotional). Previous research has shown that people with betrayal trauma histories experience greater dissociative symptoms of posttraumatic stress disorder and co-morbid substance use disorder symptoms. Women in the criminal legal system commonly have significant histories of betrayal trauma and related posttraumatic stress symptoms and substance use. However, no studies have specifically explored the impact of dissociative posttraumatic stress symptoms on substance use outcomes in this population. Additionally, no studies have explored whether betrayal trauma relates to nonfatal overdoses.

METHODS

This cross-sectional survey study of N = 508 women with criminal legal system involvement examined the indirect effects of betrayal trauma history on substance use outcomes through dissociative posttraumatic stress symptoms.

RESULTS

Multivariate analyses supported an indirect effect of betrayal trauma on substance use severity, daily substance use, and history of overdose, but not alcohol use severity, through dissociative symptoms.

CONCLUSIONS

Women in the criminal legal system with betrayal trauma and dissociative symptoms may be at risk for substance use and related outcomes (i.e., overdose). Future work is needed to examine whether targeting such symptoms may improve substance use treatment and prevention of serious outcomes in this population.

The relationship between dissociative symptoms and the medications used in the treatment of opioid use disorder

Opioid use disorder has long been associated with psychiatric symptoms, including dissociative experiences. Medications used to treat opioid use disorder can potentially impact dissociative symptoms, but the existing literature has not explored this. We examined the relationship between dissociative symptoms and opioid use disorder using the Dissociative Experiences Scale (DES). We studied subjects who were taking prescribed methadone, buprenorphine, or naltrexone for opioid use disorder. We gave the DES, the Patient Health Questionairre-9 (PHQ-9), and the PTSD Checklist for DSM-5 (PCL-5) with Criterion A to subjects in three substance use treatment facilities in Ohio. We conducted Analysis of Variance (ANOVA) and Spearman's Rank Correlations to examine associations between the variables and outcomes. We developed three separate multiple linear regression models. We included 116 participants in our exploratory and naturalistic study. The majority of participants were female (51.7%), white (89.5%), ≤ 40 years of age (64.7%), and taking buprenorphine (55%). The average DES score was 16.1 (standard deviation = 14.9) and we considered 80.9% to have low dissociation (score < 30). Approximately 55% (n = 64) of participants were taking prescribed buprenorphine. Approximately 27% (n = 32) were taking prescribed methadone and approximately 18% (n = 21) were taking prescribed naltrexone (oral or extended release). There was a significant association between opioid medication type and log dissociative symptoms (p = .01). Participants taking prescribed buprenorphine had higher mean log dissociation symptom scores (2.7) compared to those taking prescribed methadone (2.2) and prescribed naltrexone (2.1). Log dissociation symptom scores were significantly associated with last use of any opiates (rs = -0.21; p = .02) and time on medication (rs = -0.228; p = .01). Compared to those taking buprenorphine, those taking both methadone (β = -0.26; p = .01) and naltrexone (β = -0.27; p = .006) had significantly lower dissociation scores, controlling for the other variables in the model. Dissociation scores were positively correlated with depression scores (r = 0.45; p < .0001) and with PCL-5 scores (r = 0.51; p < .0001). Our study highlights the importance of diagnosing and monitoring dissociative symptoms in individuals who are taking prescribed medications for opioid use disorder, especially since dissociative symptoms can interfere with substance use treatment.

Development and Validation of an Instrument for the Detection of Early Traumatic Experiences (ExpTra-S) in Patients With Psychosis

The risk of the appearance of psychosis may reflect the existence of an underlying vulnerability, which may be influenced by environmental factors such as early traumatic experiences. This means that in clinical practice, the assessment of and approach to previous traumatic events is important in persons with psychotic disorders. The psychometric assessment of trauma has advanced considerably in recent years; however, there is no instrument that has been constructed and validated specifically for the evaluation of early traumatic experiences in the clinical population with psychosis. The main goal of this study was to present the construction and validation process of the Screening of Early Traumatic Experiences in Patients with Severe Mental Illness (ExpTra-S). The sample consisted of 114 patients who had experienced at least one psychotic episode (M = 35.5 years of age; SD = 9.26) and a comparison group of 153 young adults (M = 20.8 years of age; SD = 1.8). The factor analysis revealed an essentially one-dimensional structure. The ExpTra-S was associated with the positive dimension of the psychosis phenotype but not with the negative or affective dimensions, or subjective experiences. No items displayed differential functioning for sex and age. The ordinal alpha for the total score was 0.96. The patients with psychosis had a higher score for early traumatic experiences in comparison with the non-clinical group. The results obtained showed that the measuring instrument developed, the ExpTra-S, is a brief, simple, and useful measuring instrument for assessing the presence of early traumatic experiences in patients with severe mental illness.

Separating the Signal from the Noise: How Psychiatric Diagnoses Can Help Discern Food Addiction from Dietary Restraint

Converging evidence from both animal and human studies have implicated hedonic eating as a driver of both binge eating and obesity. The construct of food addiction has been used to capture pathological eating across clinical and non-clinical populations. There is an ongoing debate regarding the value of a food addiction "diagnosis" among those with eating disorders such as anorexia nervosa binge/purge-type, bulimia nervosa, and binge eating disorder. Much of the food addiction research in eating disorder populations has failed to account for dietary restraint, which can increase addiction-like eating behaviors and may even lead to false positives. Some have argued that the concept of food addiction does more harm than good by encouraging restrictive approaches to eating. Others have shown that a better understanding of the food addiction model can reduce stigma associated with obesity. What is lacking in the literature is a description of a more comprehensive approach to the assessment of food addiction. This should include consideration of dietary restraint, and the presence of symptoms of other psychiatric disorders (substance use, posttraumatic stress, depressive, anxiety, attention deficit hyperactivity) to guide treatments including nutrition interventions. The purpose of this review is to help clinicians identify the symptoms of food addiction (true positives, or "the signal") from the more classic eating pathology (true negatives, or "restraint") that can potentially elevate food addiction scores (false positives, or "the noise"). Three clinical vignettes are presented, designed to aid with the assessment process, case conceptualization, and treatment strategies. The review summarizes logical steps that clinicians can take to contextualize elevated food addiction scores, even when the use of validated research instruments is not practical.

The relationship between posttraumatic stress disorder, trauma centrality, interpersonal sensitivity and psychiatric co-morbidity among students in Kazakhstan: a Latent Class Analysis

BACKGROUND

Trauma can lead to trauma centrality and affect levels of interpersonal sensitivity and psychiatric co-morbidity. Whether a coexisting relationship between posttraumatic stress disorder (PTSD) and trauma centrality can influence levels of interpersonal sensitivity and psychiatric co-morbidity among university students from Kazakhstan is unknown.

AIM

To investigate the impact of the aforementioned co-existing relationship on interpersonal sensitivity and psychiatric co-morbidity among Kazakh university students.

METHODS

597 students (F = 428, M = 169) completed questionnaires measuring PTSD, psychiatric co-morbidity, interpersonal sensitivity, and trauma centrality.

RESULTS

28%, 32% and 40% met the criteria for full, partial and no-PTSD, respectively. Latent Class Analysis revealed a three-class solution: Class 1 (the altered-self group) with a low level of PTSD but a high level of trauma centrality, Class 2 (the traumatized-self group) with high levels of PTSD and trauma centrality and Class 3 (the low symptom group) with low levels of PTSD and trauma centrality. There were significant differences in the levels of interpersonal sensitivity and psychiatric co-morbidity across three classes.

CONCLUSION

There are individual differences in the display of posttraumatic stress disorder symptoms, and trauma centrality. These differences can influence interaction with others and psychological distress.