Trauma-related Memories Research Articles

Metacognitive Therapy Versus Exposure-Based Treatments of Posttraumatic Stress Disorder: A Preliminary Comparative Trial in an Ordinary Clinical Practice

Cognitive behavioral therapy, prolonged exposure, and eye movement desensitization and reprocessing are effective treatments for posttraumatic stress disorder (PTSD). They emphasize the processing of trauma-related memories and exposure as central components in treatment. In contrast, the metacognitive model emphasizes that PTSD is caused by a persistent negative thinking style, and the goal is to find alternative coping strategies and modify metacognitive beliefs without the use of exposure. In a quasi-experimental A-B design, patients diagnosed with PTSD received either MCT (n = 32) or TAU “treatment as usual” (n = 28) consisting of exposure-based treatments and were tested on different measures of symptoms. The results indicated that both treatments were effective and performed well on both trauma and anxiety symptoms. Recovery rates and clinical improvement were higher in the MCT condition at post-treatment. The study indicates that MCT could potentially be a viable alternative to trauma-focused treatment of PTSD.Clinical trial registration: The study is a clinical and quality audit of an ordinary routinely delivered clinical service in a specialized trauma clinic involving treatments for patients with PTSD. The trial was a preliminary stage in a larger trial of chronic PTSD.

A review of selected psychotherapies for PTSD, their efficacy and treatment guidelines in adults.

Around 2.5% of Poles will develop post-traumatic stress disorder (PTSD) during their lifetime. Recent events, i.e. the pandemic and the war in Ukraine, are the factors that will increase the number of people dealing with PTSD. Owing to that, this paper aims to review and familiarise readers with the available scientific evidence on psychotherapies of PTSD provided in Poland. A review of meta-analyses of randomised controlled trials and a review of the most recent treatment guidelines concerning PTSD. The best available evidence points to high efficacy of cognitive-behavioural therapy (CBT) with prolonged exposure and Eye Movement Desensitization and Reprocessing (EMDR). Humanistic therapy also proves effective to a certain degree, but not as effective as therapies that use exposure to stimuli and memories associated with trauma. There is no evidence of the efficacy of psychodynamic therapy and methods based on polyvagal theory. Organisations preparing guidelines recommend primarily CBT and EMDR. Efficacious treatment of PTSD should include a protocol with a component of exposure to trauma-related memories and stimuli. It is recommended to use such therapies in the psychotherapeutic treatment of PTSD.

LATER-ADULTHOOD TRAUMA RE-ENGAGEMENT AMONG VIETNAM VETERANS: A COORDINATED ANALYSIS

Abstract Later-Adulthood Trauma Reengagement (LATR) is a framework for understanding the later-life emergence of trauma-related memories among aging veterans. LATR unfolds within the context of aging-related challenges such as retirement, physical decline, and bereavement. We developed a scale to assess LATR, the late-onset stress symptomatology short form (LOSS-SF). In this study, we compare the LOSS-SF scale across multiple samples of Vietnam veterans. Samples were surveyed between 2001 and 2020; all completed the LOSS-SF scale as well as measures of combat exposure and PTSD. We studied three male samples (256 repatriated US prisoners of war [RPW], 260 combat veterans [CV], and 507 deployed American Legion [AL] members) and one sample of 1956 women deployed to Vietnam, mostly nurses [WV]. Across samples, we examined three questions: 1) How prevalent is LATR? 2) Is LATR correlated with combat exposure and PTSD? 3) Using a regression framework, what factors (military characteristics, combat, PTSD) are related to LATR? Prevalence of LATR ranged from 5% to 38%. Mean LATR scores were higher among AL and CV samples than among the RPW and WV. LATR was modestly related to combat exposure (rs = .08 - .36) and moderately related to current PTSD symptoms (rs = .56 - .79). Regressions demonstrated the importance of PTSD to LATR across samples, and combat exposure was related to LATR only for WV. This study indicates that LATR varies across samples differing in gender and warzone experience and suggest further exploration of the overlap between PTSD and LATR among aging Vietnam veterans.

Closed-loop brain stimulation augments fear extinction in male rats

Dysregulated fear reactions can result from maladaptive processing of trauma-related memories. In post-traumatic stress disorder (PTSD) and other psychiatric disorders, dysfunctional extinction learning prevents discretization of trauma-related memory engrams and generalizes fear responses. Although PTSD may be viewed as a memory-based disorder, no approved treatments target pathological fear memory processing. Hippocampal sharp wave-ripples (SWRs) and concurrent neocortical oscillations are scaffolds to consolidate contextual memory, but their role during fear processing remains poorly understood. Here, we show that closed-loop, SWR triggered neuromodulation of the medial forebrain bundle (MFB) can enhance fear extinction consolidation in male rats. The modified fear memories became resistant to induced recall (i.e., ‘renewal’ and ‘reinstatement’) and did not reemerge spontaneously. These effects were mediated by D2 receptor signaling-induced synaptic remodeling in the basolateral amygdala. Our results demonstrate that SWR-triggered closed-loop stimulation of the MFB reward system enhances extinction of fearful memories and reducing fear expression across different contexts and preventing excessive and persistent fear responses. These findings highlight the potential of neuromodulation to augment extinction learning and provide a new avenue to develop treatments for anxiety disorders.

A pilot study of closed-loop neuromodulation for treatment-resistant post-traumatic stress disorder

The neurophysiological mechanisms in the human amygdala that underlie post-traumatic stress disorder (PTSD) remain poorly understood. In a first-of-its-kind pilot study, we recorded intracranial electroencephalographic data longitudinally (over one year) in two male individuals with amygdala electrodes implanted for the management of treatment-resistant PTSD (TR-PTSD) under clinical trial NCT04152993. To determine electrophysiological signatures related to emotionally aversive and clinically relevant states (trial primary endpoint), we characterized neural activity during unpleasant portions of three separate paradigms (negative emotional image viewing, listening to recordings of participant-specific trauma-related memories, and at-home-periods of symptom exacerbation). We found selective increases in amygdala theta (5–9 Hz) bandpower across all three negative experiences. Subsequent use of elevations in low-frequency amygdala bandpower as a trigger for closed-loop neuromodulation led to significant reductions in TR-PTSD symptoms (trial secondary endpoint) following one year of treatment as well as reductions in aversive-related amygdala theta activity. Altogether, our findings provide early evidence that elevated amygdala theta activity across a range of negative-related behavioral states may be a promising target for future closed-loop neuromodulation therapies in PTSD.

Bilateral eye movements disrupt the involuntary perceptual representation of trauma-related memories

Bilateral eye movement (EM) is a critical component in eye movement desensitization and reprocessing (EMDR), an effective treatment for post-traumatic stress disorder. However, the role of bilateral EM in alleviating trauma-related symptoms is unclear. Here we hypothesize that bilateral EM selectively disrupts the perceptual representation of traumatic memories. We used the trauma film paradigm as an analog for trauma experience. Nonclinical participants viewed trauma films followed by a bilateral EM intervention or a static Fixation period as a control. Perceptual and semantic memories for the film were assessed with different measures. Results showed a significant decrease in perceptual memory recognition shortly after the EM intervention and subsequently in the frequency and vividness of film-related memory intrusions across one week, relative to the Fixation condition. The EM intervention did not affect the explicit recognition of semantic memories, suggesting a dissociation between perceptual and semantic memory disruption. Furthermore, the EM intervention effectively reduced psychophysiological affective responses, including the skin conductance response and pupil size, to film scenes and subjective affective ratings of film-related intrusions. Together, bilateral EMs effectively reduce the perceptual representation and affective response of trauma-related memories. Further theoretical developments are needed to elucidate the mechanism of bilateral EMs in trauma treatment.

Clinical significance of novel 8-factor model of DSM-5 PTSD in national VA PTSD residential treatment data: Internally- v. externally-cued intrusions

BackgroundIntrusion symptoms are a core defining feature of posttraumatic stress disorder (PTSD). It was recently proposed that intrusions may be comprised of two distinct underlying processes: internally-cued intrusions (e.g., trauma-related memories), and externally-cued intrusions (e.g., reactivity to trauma-related cues in one's environment). This is the first study to examine the functional correlates of these two intrusion clusters. MethodsParticipants included 7460 veterans discharged from 40 Veterans Affairs PTSD residential programs across the United States in fiscal years 2018 through 2020. Latent network modeling and structural equation modeling were used to assess the fit of an 8-factor model of PTSD symptoms, which were assessed using the PTSD Checklist for DSM-5 (PCL-5) PTSD symptoms at admission, and its association with symptoms of depression and generalized anxiety, and emotional and physical functioning. ResultsThe 8-factor model, with separate intrusion factors, showed superior model fit to the DSM-5 4-factor, 5-factor dysphoric arousal, 6-factor anhedonia, and 7-factor hybrid models of PTSD. Internally-cued intrusions were uniquely associated with dysphoric arousal, decreased avoidance, and worse physical health functioning; whereas, externally-cued intrusions were uniquely associated with greater avoidance, anxious arousal, negative affect, increased generalized anxiety symptoms, and worse emotional functioning. LimitationsLimitations include the cross-sectional design and use of self-report measures. ConclusionsFindings provide initial support for the clinical utility of a novel 8-factor model of PCL-5 PTSD symptoms, which distinguishes internally- and externally-cued intrusions. These separate intrusion symptom clusters may offer greater specificity and utility in informing the prognosis of and tailored interventions for PTSD.

The complex neurology that links physical health to post-traumatic stress disorder

For some time, there has been a growing awareness of the physical neurological impacts that severe trauma can have. Post-traumatic stress disorder (PTSD) is a psychiatric condition that involves the presence of trauma-related memories and a heightened physiological stress at varying times and in response to a variety of triggers. Subsequently, the condition can have profoundly disabling mental impacts. Over time, such highly activated symptoms can cause neurological changes. This article discusses the effects of PTSD on brain structure and chemistry, exploring the link between mental injury and the brain.

Recovering from Post-Traumatic Stress Disorder symptoms: A study on the combination of art and mindfulness

Introduction: Even though sexual assault is rarely considered a serious social problem; it can lead to severe mental-health consequences. Aim: The aim of the current study was to assess the attrition rates and the effectiveness of a therapeutic program of art and mindfulness on Post-Traumatic Stress Disorder (PTSD) in female sexual assault survivors. Method: This study was a controlled clinical trial with a design of pre-test, post-test, and a twomonth follow-up. The population included women with sexual assault experience that had sought professional help in the psychotherapy clinics of Hamedan in 2019. 16 individuals were first selected using purposive sampling and then were allocated randomly to control (N=8) and experimental groups (N=8). The utilized questionnaires included the Impact-of-Event-Scale (2007) and the Depression-Anxiety-Stress-Scale-21 (1995). The combined treatment of art and mindfulness was conducted for the experimental group through eight two-hour weekly sessions. The data were analyzed using descriptive and inferential statistics, one-way ANCOVA and SPSS software-version 22. Results: Findings indicated that the combined art and mindfulness therapeutic program reduced intrusion (F=20.34, P<0.001), arousal (F=20.43, P<0.001), avoidance (F=14.32, P<0.002), and stress scores (F=33.46, P<0.001) significantly in the experimental group. Conclusion: The findings indicated that the combined art therapy and mindfulness method could play a significant role in the alleviation of PTSD symptoms in sexually traumatized individuals. It is suggested that the therapists consider this intervention for individuals that are severely afraid of their trauma-related memories.

The role of hippocampal CaMKII in resilience to trauma-related psychopathology

Traumatic stress exposure can form persistent trauma-related memories. However, only a minority of individuals develop post-traumatic stress disorder (PTSD) symptoms upon exposure. We employed a rat model of PTSD, which enables differentiating between exposed-affected and exposed-unaffected individuals. Two weeks after the end of exposure, male rats were tested behaviorally, following an exposure to a trauma reminder, identifying them as trauma 'affected' or 'unaffected.' In light of the established role of hippocampal synaptic plasticity in stress and the essential role of Ca2+/calmodulin-dependent protein kinase II (CaMKII) in hippocampal based synaptic plasticity, we pharmacologically inhibited CaMKII or knocked-down (kd) αCaMKII (in two separate experiments) in the dorsal dentate gyrus of the hippocampus (dDG) following exposure to the same trauma paradigm. Both manipulations brought down the prevalence of 'affected' individuals in the trauma-exposed population. A day after the last behavioral test, long-term potentiation (LTP) was examined in the dDG as a measure of synaptic plasticity. Trauma exposure reduced the ability to induce LTP, whereas, contrary to expectation, αCaMKII-kd reversed this effect. Further examination revealed that reducing αCaMKII expression enables the formation of αCaMKII-independent LTP, which may enable increased resilience in the face of a traumatic experience. The current findings further emphasize the pivotal role dDG has in stress resilience.

Using traditional medicine to help with bereavement loss and coping: an interpretative phenomenological analysis of traditional healers’ experiences

PurposeIn bereavement, memories of the loss, especially traumatic ones, can be distressful and complicate the grieving process. Although some conventional therapies have proven beneficial in lessening complicated bereavement, African indigenous methods used for the same purpose have not been well-documented. This study explored Northern Sotho traditional healers’ lived experiences regarding the medicinal benefits of Bolebatša when used in mental health-care.Design/methodology/approachUsing interpretative phenomenological analysis, this study explored traditional healers’ (n = 19; 5 = males; females = 14; mean age = 65 years, SD: 11.6) experiences and their insights regarding the management of traumatic memories in bereavement. Participating healers were sampled using convenience and snowball strategies while data was collected using face-to-face dialogues, observations and a digital camera. Qualitatively derived data was transcribed and translated from the local language to English before it was analysed phenomenologically.FindingsData analysis resulted in four major themes: characterisation of Bolebatša as a herb used to manage mental and spiritual conditions; descriptions of the herb’s administration, dosage and related user health risk; perceived therapeutic benefits of the herb; and observed link between herbal medicine and African spirituality. The study findings suggest that the Bolebatša herb, derived from the tree scientifically called Lannea schweinfurthii is primarily used to induce forgetfulness of bereavement and trauma-related memories to enhance coping.Research limitations/implicationsWhilst this study illustrates the perceived healing benefits of Bolebatša in mental health care, it is noted that the findings may not necessarily be extrapolated to other contexts. Therefore, more studies are needed with the participation of traditional healers from different ethnic backgrounds to lend support to the present findings. Data from service users’ experience of traditional healing in conjunction with traditional healers would have further benefited this study.Practical implicationsThe findings are important for mental health professions as they open avenues for other forms of treatment for mental conditions that also need attention. Equally, there is a need for western trained mental health-care practitioners and researchers to study indigenous knowledge systems of healing for reverse knowledge transfer purposes.Social implicationsThe findings also call on governments, and in this context, the South African government, to recognise, support and empower traditional healers as important role players in primary mental health care. Collaboration between western mental health practitioners and traditional healers could indeed be one important strategy towards the relief of the overwhelmed mental health-care systems in low-and-middle-income countries such as is the case in South Africa.Originality/valueThe findings open new avenues to scientific explorations of the significance of traditional medicines in bereavement care and coping. More importantly, on the Bolebatša herb’s anti-depressive and memory altering effects in mental health care.

Allocentric spatial memory performance predicts intrusive memory severity in posttraumatic stress disorder

Posttraumatic stress disorder (PTSD) is characterized by distressing trauma-related memories. According to the dual representation theory, intrusive memories arise from strengthened egocentric encoding and a poor contextual encoding, with spatial context requiring allocentric processing. Contextualization of mental imagery is proposed to be formed hierarchically through the ventral visual stream (VVS) to the hippocampal formation. Here, we tested this notion by investigating whether neuronal aberrations in structures of the VVS or in the hippocampus, as well as allocentric memory performance are associated with intrusive memory severity. The sample comprised 33 women with PTSD due to childhood trauma. Allocentric memory performance was measured with the virtual Town Square Task and T1-weighted images acquired on a 3T Siemens Scanner. Intrusive memories were evoked by presenting an audio script describing parts of their trauma (script-driven imagery). Using hierarchical linear regression analysis, we found a significant association between lower intrusive memory severity and higher allocentric spatial memory, controlling for age, working memory, and general visuospatial ability. No significant association was found between cortical thickness of VVS structures, hippocampal volume and intrusive memory severity. Post hoc exploratory analyses revealed a negative correlation between years since index trauma and left hippocampal volume. Our results are based on correlational analyses, causality cannot be inferred. This study supports the dual representation theory, which emphasizes the role of allocentric spatial memory for the contextualization of mental imagery in PTSD. Clinical implications are discussed.

Encoding or consolidation? The effects of pre- and post-learning propranolol on the impact of an emotional scene

Background and objectivesResearchers have conceived of post-traumatic stress disorder (PTSD) as a disorder of memory, and proposed that blocking the impact of stress-related noradrenaline release in the aftermath of trauma may be a way of preventing the ‘over-consolidation’ of trauma-related memories. Experimental research in humans has been limited by typically focusing on declarative memory for emotional stories, and has mainly given propranolol before learning. In contrast, the clinical studies that we comprehensively review are hampered by practical challenges, such as reliably administering propranolol in a time window sufficiently close to the traumatic event. In this study, we aimed to assess the impact of both pre- and post-learning propranolol on emotional and declarative memory for an emotional scene, using the ‘trauma film paradigm’. MethodsTo control for drug and timing effects, participants received a pill (40 mg propranolol or placebo) both 60 min before and within 5 min after viewing a 12 min, emotionally arousing trauma film, and were assigned to one of the three conditions: propranolol-placebo (n = 25), placebo-propranolol (n = 25), or placebo-placebo (n = 25). We assessed participants’ immediate emotional responses to the scene, as well as delayed impact (intrusions, Impact of Events Scale) and declarative memory. ResultsUsing Bayesian informative hypothesis testing, we found that pre-learning propranolol reduced the initial emotional impact of the ‘trauma film’. However, we did not find strong evidence for an impact of pre- or post-learning propranolol on later consequences of having watched the emotional film (intrusions, Impact of Events, or tests of declarative memory). Exploratorily restricting analyses to women, we did find evidence suggesting that pre-encoding propranolol could reduce the rate of intrusions and self-reported negative impact of the emotional scene one week later. LimitationsFloor effects in the delayed impact of the emotional scene could preclude observing differences as a function of propranolol, and propranolol dosage may need to be increased. ConclusionsAn impact of propranolol on encoding could raise difficulties in interpretation when only pre-encoding propranolol is used to make inferences about consolidation. We discuss the challenges of elucidating the mechanistic underpinnings of propranolol's reported effects on memory.

A cFos activation map of remote fear memory attenuation

RationaleThe experience of strong traumata leads to the formation of enduring fear memories that may degenerate into post-traumatic stress disorder. One of the most successful treatments for this condition consists of extinction training during which the repeated exposure to trauma-inducing stimuli in a safe environment results in an attenuation of the fearful component of trauma-related memories. While numerous studies have investigated the neural substrates of recent (e.g., 1-day-old) fear memory attenuation, much less is known about the neural networks mediating the attenuation of remote (e.g., 30-day-old) fear memories. Since extinction training becomes less effective when applied long after the original encoding of the traumatic memory, this represents an important gap in memory research.ObjectivesHere, we aimed to generate a comprehensive map of brain activation upon effective remote fear memory attenuation in the mouse.MethodsWe developed an efficient extinction training paradigm for 1-month-old contextual fear memory attenuation and performed cFos immunohistochemistry and network connectivity analyses on a set of cortical, amygdalar, thalamic, and hippocampal regions.ResultsRemote fear memory attenuation induced cFos in the prelimbic cortex, the basolateral amygdala, the nucleus reuniens of the thalamus, and the ventral fields of the hippocampal CA1 and CA3. All these structures were equally recruited by remote fear memory recall, but not by the recall of a familiar neutral context.ConclusionThese results suggest that progressive fear attenuation mediated by repetitive exposure is accompanied by sustained neuronal activation and not reverted to a pre-conditioning brain state. These findings contribute to the identification of brain areas as targets for therapeutic approaches against traumatic memories.

War Memories and the Refugees’ Representation in Marie-Thérèse Toyi’s Weep not, Refugee

ABSTRACTDuring the late twentieth century, numerous Great Lakes countries witnessed and experienced massive killings, disappearances, torture and tremendous suffering. Drawing particularly from the tenets of Cathy Caruth (1995, 153), which stipulate that ‘previously forgotten memory traces return and are reworked or reinterpreted to match subsequent events and desires’, I look into trauma-related memories of the refugees with a focus on not only how memories re-construct their traumatic experience but also on how refugees are represented. I argue that Toyi, in Weep not, Refugee captures the horrific civil war in Burundi and grapples with the refugees’ experience by actively engaging events, discourses and remembering the past through its multiple facets. I further argue that Weep not, Refugee is a trauma fiction that can be read as a memory-site for remembering and bearing witness to the refugees’ past traumatic moments. This paper explores Toyi’s deployment of war memories as a tool for aesthetic and socio-political engagement in narratives of war. While the novel foregrounds complex genealogies of the Great Lakes political conflicts, it also romantically negotiates problematic issues of ethnic rivalries in Burundi. This study intervenes into conceptions of ethnic war, trauma, violence and memory.

Examining temporal alterations in Social Anxiety Disorder and Posttraumatic Stress Disorder: The relation between autobiographical memory, future goals, and current self-views

The self is a multi-faceted and temporally dynamic construct reflecting representations and beliefs about identity in the past, present, and future. Clinical studies have shown that individuals with Posttraumatic Stress Disorder (PTSD) and Social Anxiety Disorder (SAD) exhibit alterations in self-related processing but these studies have focused primarily on memory. Few studies in PTSD and SAD have examined self-related processing for the present and future, and no studies have directly compared these processes across these two disorders. Individuals diagnosed with PTSD (n=21), SAD (n=21), and healthy controls (n=21) completed cognitive tasks related to the past, present, and future. Disorder congruent temporal alterations were found across both disorders. Further, regression analyses revealed that trauma-related memories were significantly predicted by future goals related to the trauma, whereas social anxiety-related recall was predicted by current socially anxious self-views. Thus, although self-related processing may be common in PTSD and SAD, those aspects of the self most strongly associated with disorder-congruent recall differ by disorder. Self-alterations may be modifiable and developing a better understanding of past, present, and future self-processing might aid in the development of interventions that target these process.

Trauma-related emotions and radical acceptance in dialectical behavior therapy for posttraumatic stress disorder after childhood sexual abuse

BackgroundPosttraumatic Stress Disorder (PTSD) related to childhood sexual abuse (CSA) is often associated with a wide range of trauma-related aversive emotions such as fear, disgust, sadness, shame, guilt, and anger. Intense experience of aversive emotions in particular has been linked to higher psychopathology in trauma survivors. Most established psychosocial treatments aim to reduce avoidance of trauma-related memories and associated emotions. Interventions based on Dialectical Behavior Therapy (DBT) also foster radical acceptance of the traumatic event.MethodsThis study compares individual ratings of trauma-related emotions and radical acceptance between the start and the end of DBT for PTSD (DBT-PTSD) related to CSA. We expected a decrease in trauma-related emotions and an increase in acceptance. In addition, we tested whether therapy response according to the Clinician Administered PTSD-Scale (CAPS) for the DSM-IV was associated with changes in trauma-related emotions and acceptance. The data was collected within a randomized controlled trial testing the efficacy of DBT-PTSD, and a subsample of 23 women was included in this secondary data analysis.ResultsIn a multilevel model, shame, guilt, disgust, distress, and fear decreased significantly from the start to the end of the therapy whereas radical acceptance increased. Therapy response measured with the CAPS was associated with change in trauma-related emotions.ConclusionsTrauma-related emotions and radical acceptance showed significant changes from the start to the end of DBT-PTSD. Future studies with larger sample sizes and control group designs are needed to test whether these changes are due to the treatment.Trial registrationClinicalTrials.gov, number NCT00481000

Trauma-related memories in PTSD after interpersonal violence: an ambulatory assessment study

ABSTRACTBackground: Ambulatory assessment (AA) is increasingly recommended for assessing symptoms of posttraumatic stress disorder (PTSD). Previous AA studies provided new insights into the phenomenology of trauma-related memories, but also divergent findings. Notably, the range of trauma-related memories (a major target of psychotherapeutic interventions) reported in AA studies was as wide as 7.3 to 74.5 per week which might result from different methods used in these studies.Objective: We aimed at assessing the frequency of trauma-related memories in PTSD related to interpersonal violence and investigated whether this frequency is dependent upon the method.Method: For each patient trauma-related memories were assessed using two variants of smartphone-based AA: (1) Event-based sampling (EBS), i.e. participants entered data on each intrusive memory as it occurred; (2) Time-based sampling (TBS), i.e. participants reported the number of trauma-related memories they had experienced during the last two hours after they had been alerted by the smartphone. The numbers reported during the TBS-block were either analysed as reported by the participants or restricted to one per hour (rTBS). The impact of smartphone-assessments on trauma-related memories was assessed during a post-monitoring questionnaire.Results: While trauma-related memories were frequent across assessments, the methodology had a huge impact on the numbers: EBS (median = 7) and rTBS (median = 6) yielded significantly lower weekly numbers of intrusive trauma-related memories than TBS (median = 49). Accordingly, the possibility to report unrestricted numbers of trauma-related memories clearly impacted the results. The post-monitoring questionnaire identified another source for the divergent findings: while feeling disrupted by the smartphone-assessments was unrelated to the numbers reported during EBS, feeling disrupted was related to an increase of trauma-related memories during TBS and rTBS.Conclusions: The method clearly impacts the recorded number of trauma-related memories. Future research should clarify whether other variables (e.g. the subjective stress related to intrusive memories) are less dependent on the methodology.

Traumatic memories and how they are dealt with in recollections about the Lthuanians’ exodus to Germany during World War II

The article surveys the recollections of Lithuanian refugees with a view to highlighting the expression of trauma-related memories found therein. The memoirs left behind by World War II refugees are part of a new collective social narrative coming into existence following the re-establishment of Lithuanian independence. They testify to the DP generation’s experiences after leaving their homeland and starting a new life abroad. Employing the theoretical tools of investigating traumatic memory this article both describes the quantity and quality of traumatic experiences that became part of their victims’ memories and attempts to determine the presence or absence of expressions of these traumas in their memoirs. Possible explanations of why this psychological feature is more, even much more, pronounced in some cases than in others (to the point of occasionally not being apparent at all) are broached. Looking at the memoirs of Lithuanian refugees through the prism of traumatic memory is a new way of researching ego documents. It enables a better understanding of the way repressive actions of the Soviet government affected Lithuania’s inhabitants, caused the onset of traumatic experiences, and contributed to the decision of some Lithuanians to flee their country.

Age effect on autobiographical memory specificity: A study on autobiographical memory specificity in elderly survivors of childhood trauma

Background and objectivesPost-traumatic stress disorder (PTSD) is accompanied by altered autobiographical memories (AM) of the traumatic incident itself as well as of non-trauma-related events. Several studies have shown that trauma-exposed individuals developing PTSD have a reduced capacity to access specific past events that are not related to the traumatic event compared to those who do not develop PTSD. However, one study including a group of elderly adults did not find significant differences in AM between PTSD and non-PTSD participants. The present study investigated whether PTSD is associated with impaired AM of trauma-related and non-trauma-related memories in the elderly. MethodForty-four elderly participants, displaced during childhood from former German territories after the end of World War II (WWII), were examined. This group comprised 19 participants with and 25 participants without PTSD. These participants were compared to 23 non-traumatized non-displaced elderly participants. ResultsPTSD, non-PTSD and non-traumatized participants do not differ significantly in their ability to recall specific memories of their past. Moreover, participants with PTSD did not recall more trauma-related memories than non-PTSD participants. LimitationsThe traumatized participants reached for assessment might represent the most resilient individuals, which might constrain generalizability of our results to other trauma populations. ConclusionsThis study confirms preliminary evidence that PTSD is not associated with AM impairment in the elderly. We suggest that aging may alter the relationship between trauma and AM impairment in traumatized participants with PTSD, which need to be confirmed by longitudinal studies.