Positive Internal Experiences in PTSD Interventions: A Critical Review

Study protocol and rationale for a pilot randomized clinical trial comparing processing of positive memories technique with supportive counseling for PTSD

BACKGROUND

Research indicates that positive memories have a role in posttraumatic stress disorder's (PTSD) symptomatology and treatment. Following treatment development guidelines, a novel PTSD intervention - Processing of Positive Memories Technique (PPMT) - was developed and subsequently examined for its effects and feasibility in pilot studies. Extending this research, the proposed pilot randomized clinical trial with PPMT and Supportive Counseling (SC) arms will examine PPMT's effects on PTSD severity and biomarkers of stress systems' dysregulation (awakening salivary alpha amylase [sAA] and cortisol concentrations); examine mechanistic targets (affect) underlying PPMT's effects; and refine PPMT. We hypothesize that the PPMT arm will report greater decreases in PTSD severity and greater decreases in awakening sAA/cortisol ratio compared to the SC arm; and that improved affect (more positive affect and less negative affect) will mediate associations between intervention arm and changes in PTSD severity.

METHODS

We will recruit 70 individuals aged 18-65 years with PTSD. They will be randomized to 5 weekly therapy sessions of PPMT or SC, and will be assessed at baseline, weekly during treatment, 1-week post-treatment, and 3-months post-treatment. Primary outcomes are past-week PTSD severity, past-week positive and negative affect levels, and feedback data on PPMT's feasibility, format, and content. The secondary outcome is the awakening sAA/cortisol ratio. Statistical analyses include mixed-effect models and within-subjects cross-lag longitudinal mediation analyses.

CONCLUSION

Study results will advance knowledge of trauma interventions by examining effects and feasibility of a novel PTSD intervention, and by elucidating potential mechanisms underlying PPMT's effects. Clinical Trials #: NCT05523453.

The Effects of the Processing of Positive Memories Technique on Posttrauma Affect and Cognitions Among Survivors of Trauma: Protocol for a Daily Diary Study

BACKGROUND

The Processing of Positive Memories Technique (PPMT) is a promising new treatment approach for posttraumatic stress disorder (PTSD), which involves detailed narration and processing of specific positive autobiographical memories. Indeed, preliminary case-series studies have found reductions in PTSD symptoms, negative affect, and negative cognitions among survivors of trauma who have received PPMT. However, PPMT's effects have not been investigated at the daily level. In this study, we describe the protocol for a study that will examine the daily-level impacts of PPMT in a trauma-exposed, nonclinical community sample.

OBJECTIVE

This study uses an innovative research protocol that combines case-series design and daily diary approaches to examine changes in daily affect, daily cognitions, and daily PTSD symptoms pre- and post-PPMT. We hypothesize that at the daily level, in comparison to their own pre-PPMT levels, following the PPMT intervention, participants will report (1) a lower count of endorsed daily PTSD symptoms, (2) increases in daily positive affect and decreases in daily negative affect, (3) increases in positive affect reactivity to daily positive events, and (4) decreases in daily posttrauma cognitions.

METHODS

We are currently recruiting participants (target n=70) from a metroplex in the southwest United States. Following a screening survey, eligible participants complete a preintervention baseline survey, followed by 21 daily surveys in their natural environments. Then, they receive 4 PPMT sessions on a weekly basis. After the conclusion of the PPMT intervention, participants complete a postintervention outcome survey and 21 daily surveys. To compare daily affect, daily cognitions, and daily PTSD symptoms before and after PPMT, we will use the daily diary report data and conduct multilevel random intercepts and slopes linear regression models.

RESULTS

Data collection was initiated in March 2022 and is expected to end by June 2024. As of November 28, 2023, a total of 515 participants had consented to the study in the screening phase. No analyses will be conducted until data collection has been completed.

CONCLUSIONS

Study findings could clarify whether deficits in positive autobiographical memory processes may also characterize PTSD alongside deficits in traumatic memory processes. Furthermore, PPMT could be an additional therapeutic tool for clinicians to help clients reduce posttraumatic distress in their everyday lives.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/51838.

Impacts of repeated retrieval of positive and neutral memories on posttrauma health: An investigative pilot study

BACKGROUND AND OBJECTIVES

Evidence indicates that positive memory processes play a role in the etiology and maintenance of posttraumatic stress symptoms (PTSS) and related posttrauma health indicators. To extend this research, the current pilot study examined if repeated retrieval of positive vs. neutral memories was associated with (1) less PTSS and depression severity; and (2) improved affect and cognitions (fewer posttrauma cognitions, more positively-valenced affect, less negatively-valenced affect, less negative affect interference, less anhedonia, retrieval of more positive specific memories, retrieval of fewer negative specific memories).

METHODS

Twenty-five trauma-exposed participants were randomly assigned to a positive or neutral memory task condition. They participated in four weekly experimental sessions facilitated by an experimenter virtually; each consecutive session was separated by 6-8 days. We conducted mixed between-within subjects ANOVAs to examine study hypotheses.

RESULTS

No interaction effects were significant. There were significant main effects of time on PTSS and depression severity, posttrauma cognitions, positively-valenced and negatively-valenced affect, and negative affect interference.

LIMITATIONS

We used self-report measures, small and non-clinical sample with limited demographic diversity, and virtual format; did not record memory narratives; and did not have a trauma memory condition.

CONCLUSIONS

Based on pilot data, our findings suggest that individuals who retrieve positive or neutral memories repeatedly may report less PTSS and depression severity, fewer posttrauma cognitions, and improved affect. Results provide an impetus to examine impacts of and mechanisms underlying memory interventions (beyond a sole focus on negatively-valenced memories) in trauma work.

The role of affect in associations between sleep disturbances and posttraumatic stress disorder symptoms: A systematic review

Strong evidence supports a bidirectional association between sleep disturbances and posttraumatic stress disorder (PTSD). Affect - temporary internal states experienced as feeling good or bad, energized or enervated - may play a central role in explaining this link. The current systematic review summarizes the literature on associations between sleep, PTSD, and affect among trauma-exposed adults. We systematically searched five electronic databases (PubMed, PsycInfo, PTSDpubs, Web of Science, CINAHL) using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines. Of 2656 screened articles, 6 studies met inclusion criteria. Four findings emerged: (1) greater insomnia symptom severity predicted greater PTSD symptom severity above the influence of negative affect, (2) negative affect mediated the effect of sleep quality on next-day PTSD symptom severity, (3) positive affect mediated the effect of PTSD symptom severity on insomnia symptom severity and sleep disturbances, and (4) greater negative affect (specifically, greater anger) was associated with greater severity of PTSD and sleep disturbances. Findings highlight areas for future research, such as the need to investigate more dimensions, timescales, and methods of studies simultaneously assessing affect, sleep, and PTSD, as well as the need for more longitudinal and experimental work to determine causality across these constructs.

Relations Between Posttraumatic Stress Disorder Symptoms and Positive Memory Characteristics Among Women Reporting Intimate Partner Violence: A Micro-Longitudinal Study

Evidence links posttraumatic stress disorder (PTSD) symptoms to positive autobiographical memory characteristics. To extend this research, we uniquely utilized micro-longitudinal data to examine (1) the trajectory of PTSD symptom count across 30 days; and (2) if more vividness and accessibility of retrieved positive memories at the daily level predicted decreases in the trajectory of PTSD symptom count across 30 days. The current study was a secondary data analysis of a larger study. The sample included 74 women who reported physical or sexual victimization in the past 30 days by their current male partner and reported the use of alcohol and/or drugs during that time (M_age = 39.68 years; 37.80% with diagnostic PTSD; 43.2% White; 37.8% Black or African American). They completed thrice daily measures of PTSD symptoms and positive memory characteristics (vividness and accessibility) across 30 days. Results of the random effects longitudinal multilevel model indicated that, on average, the relation between PTSD symptom count and positive memory vividness was positive and statistically significant (0.19, 95% Confidence Interval [CI] [0.2, 0.35]); and the relation between PTSD symptom count and positive memory accessibility was positive and statistically significant (0.31, 95% CI [0.15, 0.47]). The relationship between PTSD symptom count and positive memory vividness/accessibility (i.e., slopes) varied significantly across participants, with a wide range of positive and negative regression coefficients. Future research needs to investigate why and how positive memory vividness and accessibility may relate to trajectories of PTSD symptoms over time, with potential clinical implications for positive memory interventions addressing PTSD.

Do positive memory characteristics influence daily-level trajectories of posttraumatic stress disorder symptoms? an exploratory daily diary study

BACKGROUND AND OBJECTIVES

Evidence links posttraumatic stress disorder (PTSD) with positive memory characteristics. To extend this research, we utilized daily diary data to examine (1) concurrent/lagged associations between daily PTSD symptom severity and positive memory vividness/accessibility; and (2) associations between baseline-assessed positive memory characteristics and changes in PTSD symptom severity over time.

DESIGN AND METHODS

A sample of 238 trauma-exposed participants (Mage = 21.19 years; 86% women) completed baseline and 10 daily measures of PTSD symptoms and positive memory characteristics. Multilevel models covaried for gender, number of trauma types, and number of completed surveys.

RESULTS

Days with greater PTSD symptom severity than an individual's average associated with less vividness (b = -0.02, p < .001) and accessibility (b = -0.02, p < .001) of the positive memory on the same day. Days with greater positive memory vividness (b = -1.06, p < .001) and accessibility (b = -0.93, p < .001) than an individual's average associated with less PTSD symptom severity on the same day. There were no significant lagged associations between these constructs. There were significant interactions between baseline-assessed psychological distance and time (b = -0.04, p  = .042) and between baseline-assessed visual perspective and time (b = 0.05, p = .023) on PTSD symptom severity across days.

CONCLUSIONS

Findings inform positive memory intervention targets for PTSD and provide impetus for longitudinal investigations on their inter-relations.

Positive emotion in posttraumatic stress disorder: A global or context-specific problem?

Problems with positive emotion are an important component of posttraumatic stress disorder (PTSD), with competing perspectives as to why. The global model suggests that people with PTSD experience a relatively permanent shift in their capacity for positive emotion regardless of context, whereas the context-specific model posits access to the full repertoire of positive emotion that only becomes reduced during exposure to trauma reminders. We tested the global versus context-specific models using ecological momentary assessment (EMA). Trauma-exposed adult community members (N = 80) with (n = 39) and without diagnosed PTSD completed 3 days of EMA (n = 2,158 observations). Participants with PTSD reported lower average momentary levels of positive emotion, B = -0.947, 95% CI [-1.35, -0.54], p < .001, and positive situations, B = -0.607, 95% CI [-1.16, -0.05], p = .032, and more thinking about trauma reminders, B = 0.360, 95% CI [0.21, 0.51], p < .001. There was no between-group difference in positive emotion reactivity (degree of positive emotion derived from positive situations), B = 0.03, 95% CI [-0.09, 0.14], p = .635. Increased thinking about trauma reminders predicted lower momentary levels of positive emotion, B = -0.55, 95% CI [-0.83, -0.26], p < .001, but not reactivity, B = 0.02, 95% CI [-0.35, 0.40], p = .906, irrespective of PTSD status. Findings supported the global model and were inconsistent with the context-specific model. This study helps clarify positive emotional functioning in trauma-exposed adults and highlights future directions to better understand problems with positive emotion in PTSD.

Positive Affect Processes and Posttraumatic Stress Disorder Symptoms: Findings from an Open Label and Uncontrolled Pilot Study using the Positive Memory Processing Technique

Recently, a five-session Processing of Positive Memories Technique (PPMT) was proposed as a novel intervention for posttraumatic stress disorder (PTSD). One purported outcome of and mechanism underlying PPMT's effects on PTSD is improved positive affect processes. In this uncontrolled pilot study, we examined whether PPMT was associated with decreases in PTSD severity; and whether changes in positive affect levels, reactivity, and dysregulation related to changes in PTSD severity across sessions. The sample included 16 trauma-exposed participants seeking services at a University Psychology Clinic (Mage=27.44 years; 68.80% women). Multilevel linear growth models examined the main effects of each positive affect variable and their interactions with time on PTSD severity. PTSD severity decreased across PPMT treatment in each model (bs=-0.43 to -0.33; d=-0.03; ps<.001-0.008). There was a main effect of positive emotion dysregulation (b=1.16, d=0.11; p=0.009), but not of positive affect levels (p=0.821) or reactivity (p=0.356) on PTSD severity. However, positive affect processes did not modify the trajectory of PTSD severity across treatment. Regarding PTSD symptom clusters, there was an interaction between positive affect levels and time on alterations in arousal and reactivity (AAR) cluster severity (b=-0.01, p=0.036); individuals with positive affect levels 1 SD above the mean (b=-0.18, p<0.01) and at the mean (b=-0.10, p=0.01) had greater decreases in AAR cluster severity across treatment compared to individuals with positive affect levels 1 SD below the mean (b=-0.02, p=0.710). Findings suggest that PPMT may relate to improved PTSD symptoms; and that positive affect levels/dysregulation may be worthwhile targets for future investigations.

The Moral Injury Experience Wheel: An Instrument for Identifying Moral Emotions and Conceptualizing the Mechanisms of Moral Injury

This paper introduces an infographic tool called The Moral Injury Experience Wheel, designed to help users accurately label moral emotions and conceptualize the mechanisms of moral injury (MI). Feeling wheels have been used by therapists and clinical chaplains to increase emotional literacy since the 1980s. The literature on the skill of emotion differentiation shows a causal relationship between identifying emotions with specificity and emotional and behavioral regulation. Emerging research in moral psychology indicates that differentiating moral emotions with precision is related to similar regulatory effects. Based on this evidence, it is proposed that increasing moral emotional awareness through use of an instrument that visually depicts moral emotions and their causal links to MI will enhance appraisal and flexible thinking skills recognized to reduce the persistent dissonance and maladaptive coping related to MI. Design of the wheel is empirically grounded in MI definitional and scale studies. Iterative evaluative feedback from Veterans with features of MI offers initial qualitative evidence of validity. Two case studies will show utility of the wheel in clinical settings and present preliminary evidence of efficacy.

Factors Related to Positive Memory Count Among Trauma-Exposed Individuals: A Scoping Review

To examine the existing knowledge base on trauma experiences and positive memories, we conducted a scoping review of trauma and post-trauma factors related to positive memory count. In July 2019, we searched PubMed, Medline, PsycINFO, Web of Science, Cumulative Index of Nursing and Allied Health Literature, Embase, and PTSDpubs for a combination of words related to "positive memories/experiences," "trauma/posttraumatic stress disorder (PTSD)," and "number/retrieval." Twenty-one articles met inclusion criteria (adult samples, original articles in English, peer-reviewed, included trauma-exposed group or variable of trauma exposure, trauma exposure examined with a trauma measure/methodology, assessed positive memory count, empirical experimental/non-experimental study designs). Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews guidelines, two authors reviewed abstracts, completed a secondary search, and independently extracted data. Our review indicated (1) that depression and PTSD were most researched; (2) no conclusive relationships of positive memory count with several psychopathology (depression, acute stress disorder, eating disorder, and anxiety), cognitive/affective, neurobiological, and demographic factors; (3) trends of potential relationships of positive memory count with PTSD and childhood interpersonal traumas (e.g., sexual and physical abuse); and (4) lower positive memory specificity as a potential counterpart to greater overgeneral positive memory bias. Given variations in sample characteristics and methodology as well as the limited longitudinal research, conclusions are tentative and worthy of further investigations.

The power of negative and positive episodic memories

The power of episodic memories is that they bring a past moment into the present, providing opportunities for us to recall details of the experiences, reframe or update the memory, and use the retrieved information to guide our decisions. In these regards, negative and positive memories can be especially powerful: Life’s highs and lows are disproportionately represented in memory, and when they are retrieved, they often impact our current mood and thoughts and influence various forms of behavior. Research rooted in neuroscience and cognitive psychology has historically focused on memory for negative emotional content. Yet the study of autobiographical memories has highlighted the importance of positive emotional memories, and more recently, cognitive neuroscience methods have begun to clarify why positive memories may show powerful relations to mental wellbeing. Here, we review the models that have been proposed to explain why emotional memories are long-lasting (durable) and likely to be retrieved (accessible), describing how in overlapping—but distinctly separable—ways, positive and negative memories can be easier to retrieve, and more likely to influence behavior. We end by identifying potential implications of this literature for broader topics related to mental wellbeing, education, and workplace environments.

Anhedonia in Posttraumatic Stress Disorder: Prevalence, Phenotypes, and Neural Circuitry

Anhedonia, the reduction of pleasure and reward-seeking behavior, is a transdiagnostic construct associated with a range of important health outcomes. As with other psychiatric disorders, anhedonia is a relatively common, though understudied, feature of posttraumatic stress disorder (PTSD) that is not adequately targeted by existing treatments. The purpose of this review is to describe the current state of the literature on anhedonia in PTSD and highlight areas for future research based on gaps in the existing evidence base. First, we review evidence for anhedonia symptoms as a distinct PTSD symptom factor and its associations with psychiatric comorbidity, disease trajectory, and quality of life outcomes, as well as describe theories that seek to explain the occurrence of anhedonia among individuals with PTSD. Second, we review evidence for behavioral and neural alterations in reward processing and circuitry, a marker of anhedonia, among individuals with PTSD and in animal models relevant to this disorder. Finally, we discuss key gaps in our understanding of anhedonia in PTSD and suggest areas for future research. Specifically, the timing of anhedonia symptom development and underlying circuit dysfunction in the trauma response trajectory, as well as potential differential associations of facets of anhedonia on clinical outcomes, remain unclear. Additionally, further research is needed to determine potential moderators of anhedonia, as well as the efficacy and effectiveness of psychotherapeutic, psychopharmacological, and device-based interventions targeting anhedonia among individuals with PTSD. A more thorough understanding of these topics will ultimately improve prevention and intervention efforts for PTSD.

Positive emotion dysregulation and posttraumatic stress disorder symptoms: Investigating the role of anxiety sensitivity

OBJECTIVE

Posttraumatic stress disorder (PTSD) symptoms are prevalent and deleterious among individuals who have experienced a sexual assault. Although an emerging field of research has established a link between positive emotion dysregulation and PTSD symptoms, there is a limited understanding of mechanisms underlying this relation. Individuals who have experienced a sexual assault may begin to fear any arousal-related sensations via stimulus generalization, including that associated with positive emotions, which, in turn, may amplify PTSD symptoms. Thus, the current study examined the role of anxiety sensitivity in the association between positive emotion dysregulation and PTSD symptoms.

METHODS

A sample of 500 community members reporting a history of sexual assault (M_age=34.54, 54.4% male, 79.0% white) completed measures of positive emotion dysregulation, anxiety sensitivity, and PTSD symptoms.

RESULTS

Findings detected a significant indirect effect of anxiety sensitivity in the relation between positive emotion dysregulation and PTSD symptoms (β = 0.28, SE=0.03, 95% CI [0.22, 0.34]). Supplementary analyses revealed that effects held for subscales of anxiety sensitivity (i.e., cognitive, physical, social concerns) and PTSD symptom clusters (i.e., intrusions, avoidance, negative alternations in cognitions and mood, alternations in arousal and reactivity).

CONCLUSIONS

This study offers preliminary empirical support for the assertion that fear of arousal-related sensations associated with positive emotions may partially explain the link between positive emotion dysregulation and PTSD symptoms among those who have experienced a sexual assault. Information from this study could advance future research and treatment.

The role of emotion dysregulation in the association between posttraumatic stress disorder symptoms and suicidal thoughts and behaviors among veterans

OBJECTIVE

Although research has established a link between posttraumatic stress disorder (PTSD) symptoms and suicidal thoughts and behaviors (STBs), little is known about factors that may accentuate this relation. This study evaluated the influences of negative and positive emotion dysregulation on the association between PTSD symptoms and STBs among veterans.

METHODS

Four-hundred and sixty-five trauma-exposed military veterans in the community (M age  = 38.00, 71.4% male, 69.5% White) completed online questionnaires.

RESULTS

Negative emotion dysregulation did not moderate the relation between PTSD symptoms and STBs. Results showed significant interactive effects of PTSD symptoms and positive emotion dysregulation on STBs, such that PTSD symptoms were more strongly related to STBs at high (vs. low) levels of positive emotion dysregulation. This effect was sustained across domains of positive emotion dysregulation.

CONCLUSIONS

Findings suggest a potential need to consider positive emotion dysregulation in the assessment and treatment of STBs among veterans with PTSD symptoms.

Moderating effects of sleep difficulties on relations between posttraumatic stress disorder symptoms and positive memory count

OBJECTIVES

Posttraumatic stress disorder (PTSD) severity relates to positive memory retrieval difficulties. One variable potentially influencing this relation is sleep difficulties. We examined moderating effects of sleep difficulties (duration and quality) on relations between PTSD severity and count of specific positive memories covarying for age, gender, and depression.

METHODS

Participants were an Amazon Mechanical Turk-recruited trauma-exposed community sample of 205 respondents (M age  = 35.44; 61.40% women).

RESULTS

Moderated regression analyses indicated significant interaction effects between sleep quality (b = 0.03; p = 0.036) and PTSD severity on specific positive memory count. Among individuals reporting better sleep quality, there were negative associations between PTSD severity and specific positive memory count (b = -0.04, SE = 0.02, p = 0.010). Similar results were obtained for PTSD's intrusion and arousal clusters.

CONCLUSION

Results support targeting sleep quality and PTSD severity to improve positive memory retrieval in PTSD and memory interventions, and the importance of considering sleep when examining links between PTSD and positive memory retrieval.

Processing of Positive Memories Technique among Clients Reporting Traumatic Experiences: A Case Series

Many current treatments for posttraumatic stress disorder (PTSD) emphasize processing and engaging with trauma memories as the key mechanism of therapeutic change. However, promising emerging research indicates links between PTSD symptoms and positive memories. Processing positive memories, to therapeutically impact health outcomes for trauma-exposed individuals, may have several benefits, including (a) increasing access to positive coping mechanisms via activating positive affect and thoughts; (b) addressing avoidance of positive affect and thoughts; and (c) honing skills that will aid in the eventual processing of trauma memories. The present article demonstrates the utility and effects of a novel Processing of Positive Memories Technique (PPMT) with three clients who reported a history of traumatic experiences. We outline the procedures of a 5-session PPMT, that incorporates symptom assessment, detailed imaginal experiencing of positive memories, and processing of associated positive values, affect, strengths, and thoughts. We utilize longitudinal assessment data to demonstrate the clinical benefits of PPMT, such as less PTSD severity, improved mood (e.g., less negative affect), and greater self-esteem. Finally, we discuss treatment considerations based on unique client factors and treatment modalities (i.e., in-person vs. video telehealth).

Positive memory intervention techniques: a scoping review

The scoping review examines and summarises the available knowledge base on intervention techniques focused on positive memories. An iterative series of PsycInfo and Medline searches was conducted up to April 2021 following PRISMA-ScR guidelines. Thirty-nine studies, spanning 12 intervention techniques, were selected and described including: (1) theoretical basis; (2) type of study, sample, and measures; (3) intervention protocol; and (4) results of empirical studies if applicable. Results indicated that most techniques have only been tested in one-two studies with modest sample sizes and, when follow-ups are conducted, they are typically short. Results indicate that working with positive memories has the greatest impact on improving positive affect and reducing depressive symptoms, and that these effects are often temporary. This review serves as a quick reference guide to help professionals' access to descriptions and information on empirical evidence of positive memory techniques, improving their therapeutic arsenal to enhance well-being and therapeutic outcomes in their patients.

Critical considerations for the positive memory-posttraumatic stress disorder model

Posttraumatic stress disorder (PTSD) includes changes in processes such as encoding and retrieval for both traumatic and positive memories. However, most work has predominantly focused on traumatic memories. Thus, Contractor and colleagues proposed a Positive Memory-PTSD model, which highlighted potential benefits associated with and mechanisms underlying positive memory retrieval/processing among individuals reporting PTSD symptoms. To enhance research on and clinical impacts of this model, the current review provides critical considerations for the Positive Memory-PTSD model. Drawing from emerging research and clinical observations, we (i) clarify that the model addresses specific versus overgeneral positive memories; (ii) underscore the importance of considering the heterogeneity in, and transitionary nature of, affect processes following positive memory retrieval; and (iii) highlight the rationale for considering trauma type/count and co-occurring conditions, as potential moderators of relations between positive memory processing and PTSD. Hereby, we provide an updated Positive Memory-PTSD model and implications for positive memory interventions drawing from this model.

Moderating effects of dysregulation and fear of positive emotions on the relationship between posttraumatic stress disorder symptoms and positive memory count

OBJECTIVES

We examined moderating effects of positive emotion dysregulation and fear of positive emotions in the relation between posttraumatic stress disorder (PTSD) severity and positive memory count.

METHOD

Participants were 205 trauma-exposed community individuals (Mage  = 35.44; 61.50% female).

RESULTS

Moderation analyses indicated interaction effects of PTSD severity with nonacceptance of positive emotions (b = -0.01, p = .002) and difficulties with goal-directed behaviors when experiencing positive emotions (b = -0.01, p = .006) on positive memory count.

CONCLUSIONS

Greater PTSD severity was associated with more specific positive memories when individuals reported less nonacceptance of positive emotions and fewer difficulties engaging in goal-directed behaviors in the context of positive emotions. Greater PTSD severity was associated with fewer specific positive memories when individuals reported greater nonacceptance of positive emotions and greater difficulties engaging in goal-directed behaviors in the context of positive emotions. Results support addressing positive emotion dysregulation in memory-focused interventions for PTSD.

Examining relations of polytraumatization typologies with positive memory count and phenomenology

Background and Objectives: Most individuals experience multiple potentially traumatizing events (PTEs); hence, it is important to consider count and types of PTEs (polytraumatization) in relation to post-trauma health. Notably, no research has examined polytraumatization typologies in relation to positive memory count and phenomenology. We examined (1) latent subgroupings of individuals based on PTE endorsements; and (2) relation of the optimal latent class solution to positive memory count and phenomenology. Design: Participants were 203 trauma-exposed adults (Mage  = 35.40; 61.10% females); we used PTEs endorsed on the Life Events Checklist for DSM-5 as indicators for analyses. Results: Latent class analyses indicated a three-class solution differing in quantity and quality of PTE types: Low Experience, Predominant Interpersonal PTEs, and Predominant Non-Interpersonal PTEs. Further, more positive memories predicted membership in the Low Experience vs. other classes; greater sensory details of a positive memory predicted membership in the Low Experience vs. the Predominant Interpersonal PTEs Classes; and greater accessibility of a positive memory predicted membership in the Predominant Interpersonal PTEs vs. the Predominant Non-Interpersonal PTEs Classes. Conclusions: Results indicated three meaningful subgroups endorsing differing levels/types of PTEs; count, sensory details, and accessibility of positive memories, pending further investigation, may differentiate these subgroups.

Processing of Positive Memories Technique (PPMT) for Posttraumatic Stress Disorder: A Primer

Despite substantial evidence linking posttraumatic stress disorder (PTSD) and positive memory processes, existing trauma research and clinical work focuses primarily on traumatic memories. In light of this limitation, Contractor and colleagues proposed a conceptual model linking PTSD to positive memories; this provided the backdrop to develop a manualized positive memory therapy protocol for trauma-exposed individuals (Processing of Positive Memories Technique; PPMT). In the current study, we first present justification for developing PPMT by outlining the role of positive memories in trauma theories, as well as empirical evidence and intervention research linking trauma/PTSD to positive memory processes. Next, we provide information on the preliminary PPMT protocol by outlining (1) theoretical foundations; (2) intervention strategies PPMT draws from; (3) objectives; and (4) a session-by-session description of goals, content, and homework assignments. Finally, we end by highlighting some (1) unique features and advantages of PPMT such as integrating well-supported experimental and cognitive psychology research into intervention research, bridging the gap between basic science and applied research, and being tailored to PTSD's unique symptomatology; and (2) directions for future research. The aim of this paper was to provide a primer on PPMT to facilitate its empirical examination and applicability in PTSD research and clinical work.