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Rationale: To examine the acute effects of ayahuasca use and their relationship to sub-acute changes in affect and mindfulness in a non-clinical sample, addressing the need for a better understanding of ayahuasca's immediate and short-term impacts as interest in its use grows., Objectives: Using prospective ecological assessment, this study investigates how ayahuasca used at a 4-day retreat affects positive/negative affect and mindfulness skills in daily living compared to pre-retreat. Additionally, we explore acute psychedelic experiences during the ayahuasca retreat, assessed retrospectively 1-2 days post-retreat, as potential mechanisms for theorized effects in daily living post-retreat., Methods: Thirty-six participants reported positive/negative affect and mindfulness skills three times daily for 5 days before and after the retreat. Baseline assessments included lifetime psychedelic experience, and post-retreat assessments covered acute ayahuasca experiences. Mixed-effect linear models were used to analyze the data., Results: Post-retreat, we observed reduced negative affect, increased positive affect, and enhanced mindfulness skills in daily living. Ayahuasca-induced acute experiences, such as time/space transcendence, emotional breakthrough and challenging experiences predicted greater subacute positive affect. Notably, none of these experiences were linked to subacute improvements in negative affect or mindfulness. No participants showed clinically significant adverse responses post-retreat, and only 5.5% exhibited some degree of potentially clinically significant deterioration in affect., Conclusions: Ayahuasca use may lead to improvement in mood and mindfulness skills, and key acute psychedelic experiences induced by ayahuasca may be important to some of these salutary effects, positive affect in particular., Competing Interests: Declarations. Ethical approval: The study received human subjects research ethics approval from the institutional review board of the Faculty of Social Welfare & Health Sciences, University of Haifa [#214/22]. All participants gave their written informed consent. Conflict of interest: The authors have no relevant financial or non-financial interests to disclose., (© 2024. The Author(s).)

The processing of positive memories technique (PPMT) entails detailed narration and processing of specific positive autobiographical memories (AM) and has shown promise in improving posttraumatic stress disorder (PTSD) symptoms. We examined whether participants receiving PPMT reported decreases in PTSD and depressive symptom severity, negative affect levels/reactivity, posttrauma cognitions, and positive emotion dysregulation, as well as increases in positive affect levels/reactivity and the number of retrieved positive AMs across four PPMT sessions. Individuals (N = 70) recruited from the community completed surveys at baseline (pre-PPMT), each PPMT session, and after completing all four PPMT sessions. Multilevel linear growth models indicated session-to-session decreases in PTSD severity, β = -.17, p < .001; depressive symptom severity, β = -.13, p < .001; negative affect levels, β = -.13, p < .001; positive affect reactivity, β = -.14, p = .014; and posttrauma cognitions, β = -.12, p < .001; and session-to-session increases in negative affect reactivity, β = .18, p = .001. Paired-samples t tests indicated decreases in retrieved positive AMs, d = 0.40, p = .001, including specific positive AMs, and negative AMs, d = 0.23, p = .022, and increases in retrieved overgeneral positive AMs, d = -0.38, p = .002, from baseline to postintervention. Thus, PPMT may help decrease PTSD and depression severity, negative affect, posttrauma cognitions, and negative AM recall tendencies. Clinicians may need to incorporate additional skills into the PPMT framework to improve positive affect processes that can be sustained over time., (© 2025 International Society for Traumatic Stress Studies.)

Background: Restrained eating has been related to psychological distress like anxiety and eating disorder symptomatology, but little is known about this relationship in daily life in non-clinical populations. We aimed to understand concurrent and temporal associations between momentary anxiety and restrained eating in everyday life within and across persons in a non-clinical sample, and examined whether this association remains after controlling for eating disorder symptomatology., Methods: We used a 10-day ecological momentary assessment (EMA) protocol. Participants (n = 123) completed a baseline survey with demographics and eating disorder symptomatology questions, and three EMA surveys per day reporting anxiety and restrained eating intentions. We applied mixed-effects and random intercept cross-lagged models to analyze the data., Results: Momentary anxiety and restrained eating were concurrently significantly positively associated within and between persons. When participants had more anxiety than was typical for them, they were more likely to intend to restrain eating, and people with overall higher anxiety symptoms tended to report greater restrained eating over the study period. These associations remained significant after adjusting for eating disorder symptomatology. There were no significant temporal cross-lagged effects. Anxiety-restrained eating association did not spill over into the next assessment window., Limitations: The time window between prompts may have been too long to capture potential temporal effects, and we did not examine actual behavioral food restrictions., Conclusion: Daily-life anxiety may be related to concurrent restrained eating intentions, above and beyond baseline eating disorder symptomatology. Research is needed exploring daily-life anxiety as a potential intervention target to address restrained eating., Competing Interests: Declaration of competing interest None., (Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.)

Daily-life stressors and food cravings are dynamic and vary within and across persons. Some evidence suggests interpersonal stressors increase appetite. However, little is known about the association of food craving with different types of stressors at the momentary level in the general population. We aimed to explore the momentary relationships between daily-life stressful events and food craving in a non-clinical community sample, and to compare the associations with food craving when the most stressful event was perceived as interpersonal versus non-interpersonal. We used ecological momentary assessment (EMA) to collect reports on the most stressful event, perceived stressor type, stressor appraisal, and food craving from 123 adults three times a day scheduled at fixed intervals over 10 days. Mixed effects random intercepts and slopes models examined the within- and between-person associations. Experiencing a stressor was significantly positively associated with within-person food craving at the same measurement. No differences in momentary food craving were found when the most stressful event was perceived as interpersonal or non-interpersonal (within-person level). However, frequently reporting the most stressful event as interpersonal (vs. non-interpersonal) was positively associated with food craving across the study (between-person level), particularly when the stressor was appraised as more unpleasant. Daily-life stressors were associated with momentary food craving. Individuals who generally perceived interpersonal stressors as their most stressful event tended to experience food cravings. Future research could further investigate the role of interpersonal stressors as a factor for overeating in daily life and the potential benefits of stress management in interventions., (© 2024 The Authors. Stress and Health published by John Wiley & Sons Ltd.)

Individuals with a psychiatric diagnosis and those with a history of trauma are at high risk for depression and posttraumatic stress symptoms (PTSS) following exposure to new traumatic events. Nevertheless, research is scarce on how having both a psychiatric diagnosis and a trauma history affect reactions to new traumatic events, and how different trauma types may affect individuals with a psychiatric diagnosis. We thus examined whether different stressful contexts (War and COVID-19) affected individuals with and without a psychiatric diagnosis differentially and whether results might be explained by prior trauma exposure. In the same cohort, we assessed depression and PTSS during wartime (2014), routine time (2016), and during the COVID-19 pandemic (2020) in a sample with (n = 89) and without (n = 104) a self-reported psychiatric diagnosis. This cohort was recruited during the 2014 Israel-Gaza War using social media, snowballing and outreach to mental health rehabilitation centres. We used a linear mixed modelling approach on data from the entire sample, as well as on the two study groups separately. We found that trauma history predicted PTSS and depression whereas a history of psychiatric diagnosis did not. Regarding trauma types, we found that individuals in the psychiatric diagnosis group relative to themselves had more symptoms during COVID-19 compared to war and routine time, while those without diagnosis had more PTSS and depression symptoms during wartime compared to routine time and COVID-19. In conclusion, a traumatic past may have an important influence on reactions to different types of traumatic events. Distinct traumatic events may affect individuals with or without a psychiatric diagnosis differentially., (© 2023 The Authors. Stress and Health published by John Wiley & Sons Ltd.)

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., (©Talya Greene, Ateka A Contractor, Sheila Daniela Dicker-Oren, Andrea Fentem, Sharon R Sznitman. Originally published in JMIR Research Protocols (https://www.researchprotocols.org), 12.01.2024.)

Objective: Food craving, restrained eating, hunger, and negative emotions may predict and reinforce one another. However, less is known about how they interact together as a complex system in daily life. Therefore, we used a dynamic network approach to examine the associations between food craving, restrained eating, hunger and negative emotions in daily life., Methods: Food craving, restrained eating, hunger and negative emotions were measured using ecological momentary assessment three times a day over ten days in a community sample in Israel (n = 123). A two-step multilevel vector auto-regression network analysis was used to estimate temporal, contemporaneous and between-persons networks., Results: In the temporal network, restrained eating was the most central predictor of eating behaviors and negative emotions, predicting food craving and hunger as well as sadness and loneliness. Food craving was also predicted by hunger and stress, and hunger predicted loneliness. In the contemporaneous network, food craving was associated with hunger and feeling bored, and higher anger was associated with lower restrained eating. Stress and sadness were central negative emotions in the models., Discussion: This study suggests possible temporal and contemporaneous relationships between food craving, restrained eating, hunger and negative emotions, emphasizing their complex interactions in daily life. Restrained eating and stress should be investigated as potential targets for interventions addressing food craving and overeating., (Copyright © 2022 Elsevier Ltd. All rights reserved.)

Objective : Research indicates that people who experience more intense peritraumatic reactions are at higher risk of subsequently developing PTSD. The study used network analysis to: 1) explore the network structure of peritraumatic distress reactions; 2) identify clusters of peritraumatic distress reactions; and 3) assess whether central items in the peritraumatic network have stronger network associations with subsequent posttraumatic stress symptoms (PTS). Method : A convenience sample of adults living in communities affected by large-scale community fires in Israel (November 2016) were recruited. Participants completed the 13-item peritraumatic distress inventory (PDI) within one month of the fires (n = 372), and the PTSD checklist for DSM-5 (PCL-5) four months after the fires (n = 199). Network analyses and exploratory graph analysis were conducted. Results : The PDI items were positively connected to each other in a network structure, which divided into two clusters: emotional reactions; and physical/somatic reactions along with guilt and shame. Loss of emotional control was the most central peritraumatic distress symptom. Highly central peritraumatic distress symptoms were not strongly associated with subsequent PTS; rather, physical reactions were most associated with PTS levels four months after the fires. Conclusions : Future studies should investigate targeting peritraumatic physical reactions as an early secondary prevention strategy for PTSD.

Objective: This study examined whether attributing a cause of a community fire to a human-made vs. natural disaster moderated the association between peritraumatic distress (PD) and posttraumatic stress (PTSD) symptoms, as well as between PD and posttraumatic growth (PTG). Method: Participants lived in Israeli communities affected by wide-scale fires in November 2016. At Time 1 (within one month of the fires), 390 participants completed measures. At Time 2 (four months after the fires), 223 of the original participants completed follow-up-questionnaires. Participants reported their PD symptoms at Time 1, and their beliefs regarding the cause of the fire, PTSD symptoms, and PTG at Time 2. Results: Higher levels of PD at Time 1 were associated with higher levels of both PTSD symptoms and PTG at Time 2. Participants who believed that the fires were more of a human-made than natural disaster had stronger associations between PD and PTSD symptoms, and stronger associations between PD and PTG. Conclusions: Attributions regarding the cause of a disaster may be related to both PTSD symptoms as well as PTG. Balanced and responsible public announcements regarding the causes of traumatic events may reduce the deleterious effects in the aftermath of a traumatic event.