Posttraumatic Stress Symptomatology Research Articles

Increasing cognitive load attenuates the moderating effect of attentional inhibition on the relationship between posttraumatic stress symptoms and threat-related attention bias variability

Theory and empirical evidence suggest that those with higher posttraumatic stress (PTS) symptoms and better attentional control (i.e., the strategic control of higher-order executive attention in regulating bottom-up, stimulus driven responses to prepotent stimuli; Sarapas et al., 2017) can use that ability to disengage and shift attention away from threat stimuli and reduce threat-related attentional dysregulation (i.e., avoidance/overcontrollers). Those with relatively worse attentional control lack the requisite resources to do this, leading to prolonged attentional engagement with threat stimuli and threat-related attention dysregulation (i.e., maintenance/undercontrollers). Given that attentional control is a limited resource, strategic avoidance of threat information or reduced threat-related attention dysregulation may not be possible among those with relatively higher attentional control when cognitive load is relatively high. To test this hypothesis, the interaction between PTS symptoms, attentional control, and cognitive load was examined as a predictor of threat-related attentional bias and threat-related attention bias variability. Participants (N = 125 undergraduate students) were randomly assigned to high or low load conditions. Participants completed self-report measures of PTS symptoms, a behavioral measure of attentional control, and a novel task that assessed threat-related attentional bias via eye movements and threat-related attention bias variability via button press. The results of a series of hierarchical regressions showed that attentional control moderated the relationship between PTS symptoms and threat-related attention bias variability in the low, but not high, load condition. This moderation effect was not observed for threat-related attentional bias assessed via eye-tracking. Consistent with theory, under conditions of higher cognitive load, overcontrollers may not be able to use attentional control to consistently regulate threat-related attention. Study findings suggest that it may be important to consider contextual factors that increase cognitive load, as well as individual differences in attentional control, when developing attention bias modification interventions to reduce PTS symptomatology.

"What If We Get Sick?": Spanish Adaptation and Validation of the Fear of Illness and Virus Evaluation Scale in a Non-clinical Sample Exposed to the COVID-19 Pandemic.

Distinct sources of stress have emerged during the COVID-19 pandemic. Particularly, fear is expected to generate significant psychological burden on individuals and influence on either unsafe behavior that may hinder recovery efforts or virus-mitigating behaviors. However, little is known about the properties of measures to capture them in research and clinical settings. To resolve this gap, we evaluated the psychometric properties of a novel measure of fear of illness and viruses and tested its predictive value for future development of distress. We extracted a random sample of 450 Chilean adult participants from a large cross-sectional survey panel and invited to participate in this intensive longitudinal study for 35 days. Of these, 163 ended up enrolling in the study after the demanding nature of the measurement schedule was clearly explained to them. For this final sample, we calculated different Confirmatory Factor Analyses (CFA) to evaluate the preliminary proposed structure for the instrument. Complementarily, we conducted a content analysis of the items to qualitatively extract its latent structure, which was also subject to empirical test via CFA. Results indicated that the original structure did not fit the data well; however, the new proposed structure based on the content analysis did. Overall, the modified instrument showed good reliability through all subscales both by its internal consistency with Cronbach’s alphas ranging from 0.814 to 0.913, and with test–retest correlations ranging from 0.715 to 0.804. Regarding its convergent validity, individuals who scored higher in fears tended to also score higher in depressive and posttraumatic stress symptoms at baseline. Furthermore, higher fears at baseline predicted a higher score in posttraumatic stress symptomatology 7 days later. These results provide evidence for the validity, reliability, and predictive performance of the scale. As the scale is free and multidimensional potentially not circumscribed to COVID-19, it might work as a step toward understanding the psychological impact of current and future pandemics, or further life-threatening health situations of similar characteristics. Limitations, practical implications, and future directions for research are discussed.

Self-efficacy and humanitarian aid workers

As a result of frequent exposure to trauma, aid workers are at high risk for negative psychological symptoms. Training specifically geared at fostering critical incident self-efficacy in humanitarian aid workers may bolster critical incident self-efficacy as well as general self-efficacy as they relate to experiences of traumatic symptomatology and resilience. Sixty-three aid workers completed questionnaires regarding efficacy, resilience, coping, and posttraumatic stress symptomatology at baseline, and 46 aid workers completed the same measures after the training workshop. Multiple regression analysis indicated that higher levels of self-efficacy related to higher resilience levels. General self-efficacy and critical incident coping self-efficacy (CICSE) were stronger after the training, even when controlling for histories of trauma. Histories of trauma contributed significant variance to CICSE before the training but were insignificant after the training. These findings suggest that aid organizations can support their workers by providing training that promotes resilience through enhancing efficacies.

Examining Associations Between COVID-19 Experiences and Posttraumatic Stress

COVID-19 has had a profound impact on health and well-being worldwide. There is an increasing need to understand the psychological impact of COVID-19, particularly associations with posttraumatic stress. This cross-sectional study examined associations between COVID-19 and posttraumatic stress among adults utilizing structural equation modeling methods. Results demonstrated that COVID-19 experiences were consistently associated with increased odds of exhibiting posttraumatic stress and higher expressions of total posttraumatic stress. COVID-19 related stress was also robustly associated with posttraumatic stress. These initial findings suggest that COVID-19 is associated with high expression of posttraumatic stress symptomatology, underscoring the increased need for mental health services.

Youth Profiles of Police-Initiated Post-Traumatic Stress Symptomatology

Youth Profiles of Police-Initiated Post-Traumatic Stress Symptomatology

Post-traumatic stress symptomatology and displacement among Hurricane Harvey survivors.

Exposure to natural disasters predisposes individuals to significant physical and mental health consequences. Research identifies a number of stressors important to determining what might exacerbate this exposure risk, as well as what types of social/psychological resources might help mitigate these negative outcomes. Using a targeted quota sample of adults (n=316) interviewed two months after Hurricane Harvey made landfall on the Gulf Coast of Texas in August 2017, the present study examines the intersection of vulnerabilities, stressors, and resources and their relationship with post-traumatic stress symptomatology. Stress is high among this sampled group with over one-quarter of respondents reporting high enough symptoms to meet the clinical caseness criteria for PTSD. Results show significant variation across categorical groupings of post-traumatic stress symptoms; younger persons, nonwhites, and those displaced from their home during the storm were more likely to be found in the highest symptom count category. Regression results confirm the bivariate results and as hypothesized, stressors were associated with higher symptom reporting among respondents, and social and psychological resources were associated with lower symptom reporting. With one of the only studies to report these relationships between vulnerability, stressors, and resources in the post-disaster Harvey setting, our work underscores the importance of identifying who is at risk, what factors can potentially mitigate that risk, and just how severe the consequences can be for survivors requiring mental health services after a disaster. Clearly, more work is needed, particularly on the identification of resources acting as protection against the overwhelming circumstances of exposure to devastation and destruction caused by natural disasters.

A cross-sectional examination of caregiver mental health and childhood cancer survivors' tobacco, alcohol, and marijuana use.

As childhood cancer survivors (CCS) age, they face numerous long-term consequences, or late effects, from their cancer treatments. Late effects may be mitigated by health-promoting behaviors, including the avoidance of substance use. CCS with greater depression symptomology have reported greater substance use, but whether their habits are associated with the mental health of their caregivers is unknown. The aim of this study was to examine caregiver psychosocial correlates of CCS substance use. This study utilizes data from the Project Forward pilot study, which collected data from 129 CCS-caregiver dyads (CCS mean age = 19.43, SD = 2.78; years since diagnosis = 7.62, SD = 2.06) from two large hospitals in Los Angeles County. CCS provided self-reported information on substance use, while caregivers self-reported on posttraumatic stress symptomatology (PTSS) associated with their child's cancer and current depressive symptoms. Among CCS, prior 30-day tobacco, marijuana, binge drinking, and polysubstance use were 12.50%, 14.17%, 13.18%, and 12.40%. In multivariable logistic regression models, caregiver PTSS was independently positively associated with CCS tobacco use. No other significant relationships between caregiver mental health (PTSS or depressive symptoms) and CCS substance use were observed. These findings suggest that caregiver PTSS is partially associated with CCS behavioral health. Survivorship care may improve tobacco use prevention efforts by incorporating family or caregiver mental health needs. Future research should examine the potential mediating effect of CCS mental health, including depressive symptoms, on this relationship.

The Role of Experiential Avoidance and Emotion Regulation in DSM-5 Posttraumatic Stress Symptomatology

Purpose The present study expanded previous research examining how experiential avoidance and PTSD symptoms of hyperarousal impact negative alterations of cognition and mood according to DSM-5 PTSD criteria. Methods: Mediation analyses examined if experiential avoidance accounted for relationships between emotional suppression and PTSD symptom clusters. Results: Hyperarousal accounted for significantly more variance than experiential avoidance in negative cognitions and mood. Mediations revealed experiential avoidance partially mediated the relationship between emotional suppression and hyperarousal, and negative alterations in cognition and mood. A full mediation of experiential avoidance was found between emotional suppression and intrusions and avoidance. Conclusion: Clinical implications are discussed.

A latent class analysis of alcohol and posttraumatic stress symptoms among offspring of parents with and without alcohol use disorder

The co-occurrence of posttraumatic stress disorder (PTSD) and alcohol use disorder (AUD) is widely known, yet few studies have examined whether and how AUD symptoms co-occur with PTSD symptom clusters of hypervigilance, avoidance/numbing, and re-experiencing. The purpose of this study was to examine potential overlap between AUD and posttraumatic stress symptomatology, and to characterize the resultant latent classes in terms of demographics, drinking behaviors, parental AUD, and specific traumas experienced (physical violence, sexual violence, and non-assaultive trauma). We hypothesized that classes would be differentiated by type and severity of AUD and PTS symptoms. Drawing from a sample of white and Black participants from the Collaborative Study on the Genetics of Alcoholism (COGA), we examined young adults between the ages of 18–35 who had experienced trauma (N = 2478). A series of LCA models based on the type of trauma experienced, posttraumatic stress symptoms and problematic alcohol use were then fitted to the data. A four-class solution provided the best fit, consisting of a low symptom class (N = 1134), moderate alcohol/low PTS severity (N = 623), mild alcohol/high PTS severity (N = 544), and high symptom severity (N = 177). Higher prevalence of sexual assault was associated with membership in high PTS severity classes, and parent AUD was associated with membership in each class, particularly when the mother or both parents had the disorder. Using person-centered methods such as LCA is a commonsense approach to understanding the heterogeneity of symptoms, trauma types, and individual-level characteristics associated with trauma-exposed individuals and comorbid AUD-PTSD, and our study is one of relatively few to empirically ascertain the co-occurrence of alcohol and PTS symptoms in a high-risk family sample.

Individual differences in attentional control explain the differential expression of threat-related attentional bias among those with posttraumatic stress symptomatology and predict symptom maintenance up to one year later

Individual differences in attentional control may explain null findings and inconsistent patterns of threat-related attentional bias (ABT) that are common in the posttraumatic stress disorder (PTSD) literature. At Time 1 (T1), trauma-exposed community participants (N = 89) completed a clinical interview, self-report measures, and an eye-tracking task developed to assess ABT. Participants completed follow-up assessments online 6 (T2) and 12 (T3) months later. Those with higher PTSD symptoms and deficits in attentional control exhibited a pattern of undercontrol, characterized by attention maintenance on threat and increased arousal. In contrast, those with higher PTSD symptoms and relatively better attentional control exhibited a pattern of overcontrol, characterized by threat avoidance and reduced arousal. These effects were specific to threat stimuli. Among PTSD symptom clusters, symptoms of hyperarousal were of central importance to the observed effects. Results from the longitudinal analysis indicate that both of these patterns of ABT are maladaptive, resulting in symptom maintenance at T2 and T3. These results have implications for (a) reconciling tensions between disparate models of ABT (i.e., vigilance-avoidance vs. attention maintenance), (b) precision medicine based approaches to targeting PTSD-related ABT, and (c) understanding the transdiagnostic role that attentional control may play in influencing ABT expression.

Post-traumatic stress symptoms in an Italian cohort of subjects complaining occupational stress.

Work-related stress presents a significant impact on work performance and physical health. It has been associated with the onset of a multitude of symptoms. The main aim of this investigation is to better understand the impact of post-traumatic stress symptomatology, using a specific self-assessment questionnaire, in subjects experiencing occupational stress with the rationale to address the variegated symptoms expressed by this particular population in a post-traumatic dimensional perspective. Authors collected socio-demographic, occupational, and clinical data. They utilized Trauma and Loss Spectrum Self Report (TALS-SR), a questionnaire investigating post-traumatic stress symptoms. The population size was 345 subjects who presented at the Occupational Health Department of a university hospital over a 3 years period (2016-2018). Data analysis revealed 33.9% of subjects who met post-traumatic stress disorder (PTSD) criteria. Gender distribution of this set was (36.4% female, 31% male). A family history or personal history of mental disorders were related to higher scores in almost all TALS-SR domains and were related, respectively, to higher scores of criterion B "intrusion symptoms" (P=.014), criterion D "negative alterations in cognitions and mood" (P=.023), and criterion E "arousal" (P=.033) of PTSD. Differences in TALS-SR scores also emerged based on age and gender. PTSD symptoms manifest at a significant level in those who experience work-related stress. Personal background of individuals, both in terms of family and personal history for mental disorders, seems to increase their vulnerability to develop post-traumatic stress symptoms. This study suggests the importance of evaluating occupational stress from a post-traumatic stress perspective also at an early stage.

What influences safety in paramedicine? Understanding the impact of stress and fatigue on safety outcomes.

ObjectiveThe purpose of this study was to build on extant research linking fatigue to safety outcomes in paramedicine by assessing the influence of a multiplicity of workplace stressors, including chronic and critical incident stresses on safety outcomes.MethodsA cross‐sectional survey was deployed to 10 paramedic services in Ontario. Validated survey instruments measured operational and organizational chronic stress, critical incident stress, post‐traumatic stress symptomatology (PTSS), fatigue, safety outcomes, and demographics. Analysis of covariance assessed associations of workplace stresses with safety outcomes and corroborated findings using hierarchical linear model and generalized estimating equations (GEE) by taking into account paramedic service when assessing the proposed associations. A non‐responder survey was conducted to asses for demographic differences in those who did and did not complete the survey.ResultsThis survey had a response rate of 40.5% (n = 717/1767); 80% of paramedics reported an injury or exposure to pathogen, 95% reported safety compromising behaviors, and 76% reported medical errors. In the GEE analyses, paramedic injury was significantly related to fatigue (0.13, SE = 0.06, P = 0.020), critical incident stress (0.03, SE = 0.01, P < 0.01), and PTSS (0.03, SE = 0.01, P < 0.01). Safety compromising behaviors were significantly associated with fatigue (0.37, SE = 0.06, P < 0.01), organizational stress (0.06, SE = 0.01, P < 0.01), and critical incident stress (0.01. SE = 0.01, P = 0.017). Medication errors were significantly related to fatigue (0.12, SE = 0.05, P < 0.01). Finally, the bivariate analysis showed increased stress factors and fatigue was associated with increased safety outcomes.ConclusionThese findings illustrate that a host of different stressors may influence safety‐related behaviors. For those interested in safety, these findings point to the need for a holistic focus on fatigue and stress in paramedicine.

Post-traumatic stress spectrum symptoms in parents of children affected by epilepsy: Gender differences

PurposeTo investigate psychopathological reaction to traumatic stress, addressing in particular gender difference, in parental couples of children affected by epilepsy. Methods50 mothers and 50 fathers, paired for one’s child, of children followed at the Pediatric Unit of a major Italian University Hospital with a diagnosis of epilepsy were enrolled, screened by means of the Semi-structured Clinical Interview for DSM-5 (SCID-5) and filled the Trauma and Loss Spectrum Self-Report (TALS-SR), an international instrument to evaluate post-traumatic stress symptomatology. Results25 % of the total sample presented a diagnosis of PTSD with a statistically higher prevalence of mothers (36 % and 14 %, respectively; p = .021). Furthermore, 44 % (48 % mothers and 40 % fathers) presented a partial PTSD. Important gender differences emerged also for all cluster dimensions of the TALS-SR except for the Avoidance. Finally, the analysis of the single items of the TALS-SR evidenced that in mothers subgroup prevail cognitive symptoms of fear and sadness as well as somatic manifestations. ConclusionsOur results point out the differences between mothers and fathers in trauma response and underline the need to develop gender targeted models of healthcare prevention and assistance.

Violence exposure, posttraumatic stress, and affect variability among African American Youth: A time sampling approach.

The current study examines the immediate and short-term impact of daily exposure to community violence on same-day and next-day levels of posttraumatic stress symptomatology and various affective states (i.e., dysphoria, hostility, and anxiety), in a sample of 268 African American adolescents living in urban, low-income, high-violence neighborhoods (Mage = 11.65; 59% female). In addition, the moderating role of affective state variability on this relationship was examined. This study utilized experience sampling method and a daily sampling approach, which contributes a more robust investigation of the short-term effects of violence exposure in youth. Hierarchical linear modeling revealed that community violence exposure was positively associated with same-day and next-day symptoms of posttraumatic stress. Violence exposure also exhibited an immediate effect on dysphoria, anxiety, and hostility levels. Youth variability in dysphoria exacerbated the effect of violence exposure on concurrent or next-day posttraumatic stress, dysphoria, and hostility. Moreover, variability in anxiety and hostility exacerbated the experience of next-day hostility. The clinical implications relating to these findings, such as the importance of implementing screening for posttraumatic stress following exposure, the incorporation of preventative treatments among those at risk of exposure, and the targeting of emotion regulation in treatments with adolescents, are discussed.

Adolescence: A Window of Opportunity for Positive Change in Mental Health

Adolescence is a period of development characterized by risk-taking, sensation-seeking, emotionally-influenced and independence-seeking behaviours. There is a move away from family and towards the social influences of peer groups. Emotionally-driven behaviours may override adolescents’ higher cognitive functioning during this time. Especially vulnerable are youth who have been the victim of high-impact trauma or chronic abuse and neglect. Specifically, the posttraumatic stress symptomatology that is often associated with experiences of abuse and neglect may impair the ability of youth to cope during this developmental period. This is where intervention by community workers may be used to support teens with a history of maltreatment, as they develop from children to adolescents and, finally, to adults. Part of such intervention includes violence prevention in families and in teen dating relationships, as well as directly addressing posttraumatic stress disorder symptomatology. This critical developmental period of adolescence presents community workers with an opportunity to intervene and guide the development of these youth, building upon resiliency factors, such as areas of individual mastery and empowerment and participation within the community. Aboriginal youth with a history of maltreatment present a special case for community workers. These youth have been subjected to intense acculturation pressures that do not exist for other adolescent populations, which create unique problems during their transition to adulthood. In order to intervene in the most effective manner, it is necessary to understand the psychological and physiological developmental processes that are unfolding in the adolescent brain. We discuss adolescent development in general and among Aboriginal adolescents, in particular. We present ways to support both groups through these challenging periods that are empirically-based and supported by research.

Multidirectional Pathways between Attachment, Mentalizing, and Posttraumatic Stress Symptomatology in the Context of Childhood Trauma

Introduction:Exposure to traumatic stressful events in childhood is an important risk factor for the development of posttraumatic symptomatology. From a mentalization-based developmental perspective, childhood adversity can affect attachment in children and may result in insecure attachment and impaired mentalizing abilities, which increase the lifetime risk for psychopathology. The present cross-sectional study examined the potential mediating role of attachment insecurity and impaired mentalizing on the relationship between childhood trauma and posttraumatic symptomatology. Method: Adults who had experienced childhood neglect and abuse (n = 295, 184 patients with personality disorder and 111 community controls) completed self-report measures of posttraumatic stress disorder (PTSD) symptoms, dissociative experiences, adult attachment insecurity, and mentalizing. Results: Structural equation modelling results revealed that attachment insecurity together with lower mentalizing mediated the link between childhood trauma and PTSD symptoms, and lower mentalizing mediated the link between childhood trauma and dissociative experiences. Conclusion: The findings show that attachment insecurity and lower mentalizing play significant mediating roles in the reporting of posttraumatic symptomatology among survivors of childhood abuse and neglect, with treatment implications for mentalization-based therapy as beneficial for individuals with a history of childhood trauma.

Latent classes of DSM-5 acute stress disorder symptoms in children after single-incident trauma: findings from an international data archive

ABSTRACT Background: After a potentially traumatic event (PTE), children often show symptoms of acute stress disorder (ASD), which may evolve into posttraumatic stress (PTS) disorder. A growing body of literature has employed latent class analysis (LCA) to disentangle the complex structure underlying PTS symptomatology, distinguishing between homogeneous subgroups based on PTS presentations. So far, little is known about subgroups or classes of ASD reactions in trauma-exposed children. Objective: Our study aimed to identify latent classes of ASD symptoms in children exposed to a single-incident PTE and to identify predictors of class membership (gender, age, cultural background, parental education, trauma type, and trauma history). Method: A sample of 2287 children and adolescents (5–18 years) was derived from the Prospective studies of Acute Child Trauma and Recovery (PACT/R) Data Archive, an international archive including studies from the USA, UK, Australia, and Switzerland. LCA was used to determine distinct subgroups based on ASD symptoms. Predictors of class membership were examined using a three-step approach. Results: Our LCA yielded a three-class solution: low (42%), intermediate (43%) and high (15%) ASD symptom severity that differed in terms of impairment and number of endorsed ASD symptoms. Compared to the low symptoms class, children in the intermediate or high severity class were more likely to be of female gender, be younger of age, have parents who had not completed secondary education, and be exposed to a road traffic accident or interpersonal violence (vs. an unintentional injury). Conclusions: These findings provide new information on children at risk for ASD after single-incident trauma, based on a unique set of international data. Classifying children based on latent symptom profiles helps to identify target groups for prevention and intervention after exposure to a PTE.

The role of age and mode of delivery in the STEPS intervention: a longitudinal pilot-study in treatment of posttraumatic stress symptoms in Danish survivors of sexual assault

ABSTRACT Background: The STEPS programme has been succesfully implemented as a group-based treatment of trauma symptoms after rape for adolescents. The STEPS intervention was translated from Dutch to Danish and offered to adults in addition to adolescents as well as an individual intervention in addition to a group-based intervention at a Danish Centre for Rape Victims through 2011 to 2014. The programme was translated from Dutch to Danish and expanded to adults in addition to adolescents as well as to an individual intervention in addition to a group-based intervention at a Danish Centre for Rape Victims through 2011 to 2014. Objective: The present study observes development in trauma symptoms and ICD-11 diagnostic status during an adapted version of the intervention programme ‘STEPS’ for survivors of sexual assault. Methods: A prospective uncontrolled study was conducted, monitoring symptoms of posttraumatic stress and other trauma-related symptomatology before treatment, after treatment and at 6 and 12 months' follow up for 103 referrals receiving individual or group-based STEPS. Tentative diagnoses of posttraumatic stress disorder (PTSD) and complex PTSD were assigned to participants according to the ICD-11 to observe the development in diagnostic status across time, and multilevel modelling was used to assess the development of symptom severity and to assess the moderating effect of age-group and mode of delivery. Results: A loglinear function representing large and statistically significant decline in symptomatology over time provided the best fit for all measures of trauma-related symptomatology. The decline was not moderated by age-group or mode of intervention. Dropout rates were independent of mode of intervention and age. Conclusion: The adaption of the STEPS programme to adults and as an individual intervention is feasible and maintains effect sizes comparable to those observed in the original intervention. Further research using randomized controlled trials is needed to ascribe the observed effect to the STEPS programme.

Posttraumatic stress symptomatology and abnormal neural responding during emotion regulation under cognitive demands: mediating effects of personality.

Posttraumatic stress disorder (PTSD) is often complicated by the after-effects of mild traumatic brain injury (mTBI). The mixture of brain conditions results in abnormal affective and cognitive functioning, as well as maladaptive behavior. To better understand how brain activity explains cognitive and emotional processes in these conditions, we used an emotional N-back task and functional magnetic resonance imaging (fMRI) to study neural responses in US military veterans after deployments to Iraq and Afghanistan. Additionally, we sought to examine whether hierarchical dimensional models of maladaptive personality could account for the relationship between combat-related brain conditions and fMRI responses under cognitive and affective challenge. FMRI data, measures of PTSD symptomatology (PTSS), blast-induced mTBI (bmTBI) severity, and maladaptive personality (MMPI-2-RF) were gathered from 93 veterans. Brain regions central to emotion regulation were selected for analysis, and consisted of bilateral amygdala, bilateral dorsolateral prefrontal (dlPFC), and ventromedial prefrontal/subgenual anterior cingulate (vmPFC-sgACC). Cognitive load increased activity in dlPFC and reduced activity in emotional responding brain regions. However, individuals with greater PTSS showed blunted deactivations in bilateral amygdala and vmPFC-sgACC, and weaker responses in right dlPFC. Additionally, we found that elevated emotional/internalizing dysfunction (EID), specifically low positive emotionality (RC2), accounted for PTSS-related changes in bilateral amygdala under increased cognitive load. Findings suggest that PTSS might result in amygdala and vmPFC-sgACC activity resistant to moderation by cognitive demands, reflecting emotion dysregulation despite a need to marshal cognitive resources. Anhedonia may be an important target for interventions that improve the affective and cognitive functioning of individuals with PTSD.

Violencia contextual, ciberacoso y sintomatología de estrés postraumático en universitarios de Ciudad Juárez, Chihuahua

En el contexto fronterizo del norte de México, signado en los últimos años por niveles de violencia social sin precedente, se analizó (como objetivo del estudio) la relación de la frecuencia a la exposición a la violencia comunitaria o contextual con la violencia ejercida a través de dispositivos electrónicos y los síntomas de estrés postraumático en jóvenes estudiantes universitarios residentes de Ciudad Juárez. Mediante un estudio cuantitativo correlacional con temporalidad transversal, se aplicaron tres instrumentos de autorreporte con escalamiento Likert a 300 estudiantes universitarios donde se identificaron las relaciones significativas entre las experiencias de exposición a la violencia comunitaria o contextual, el ciberacoso y la sintomatología de estrés postraumático. Las escalas resultaron con fiabilidad aceptable (con un alpha mayor a=.748). Veintidós por ciento de los estudiantes que percibieron al menos un acto de violencia hacia sí mismos, hacia familiares o hacia amistades cercanas y/o en línea presentaron más de dos síntomas de EPT. A través de la prueba estadística de Pearson en el programa SPSS, se encontraron correlaciones positivas estadísticamente significativas entre la exposición a violencia contextual en escuelas, colonias y lugares de diversión con las acciones de violencia en línea de ciberacoso. Asimismo, se encontraron correlaciones significativas entre la violencia directa e indirecta con sintomatología de estrés postraumático, principalmente de tipo presencial en escuelas y en centros de diversión.