The Daily Dose-Response Hypothesis of Mindfulness Meditation Practice: An Experience Sampling Study.

OBJECTIVE: Because of fast-growing interest in the applications of mindfulness to promote well-being and mental health, there are field-wide efforts to better understand how mindfulness training works and thereby to optimize its delivery. Key to these efforts is the role of home practice in mindfulness-based intervention (MBI) outcomes. Despite its centrality in MBIs, recent reviews have documented limited and mixed effects of home practice on MBI outcomes. However, methodological issues regarding monitoring and quantifying home practice and focus on cumulative or additive effects may limit our understanding of it. Temporally proximate, more transient, and contextually circumscribed effects of mindfulness mediation practice have not been examined. METHODS: We applied intensive experience sampling to measure daily practice and levels of targeted proximal outcomes (state mindfulness, decentering, emotional valance, and arousal) of training over the course of a 21-day MBI among a community-based sample of 82 meditation-naive adults. RESULTS: Despite intensive experience sampling, we found no evidence of cumulative or additive effects of total mindfulness meditation practice on outcomes at postintervention for mindfulness, decentering, emotional valence, or emotional arousal. However, we found that that daily dose of mindfulness meditation home practice significantly predicted same-day levels of state mindfulness (B = 0.004, SE = 0.001, t = 3.17, p = .000, f2 = 0.24), decentering (B = 0.004, SE = 0.001, t = 2.757, p = .006, f2 = 0.05), and emotional valence (B = 0.006, SE = 0.003, t = 2.015, p = .044, f2 = 0.01) but not daily levels of emotional arousal. Daily dose-response practice effects did not carry over to next-day levels of monitored outcomes. CONCLUSIONS: Findings show that effects of daily home mindfulness meditation practice dose on state mindfulness, decentering, and positive emotion are reliable but transient and time-limited. Findings are discussed with respect to the proposed daily dose-response hypothesis of mindfulness meditation practice.

Cognitive fusion and emotion differentiation: does getting entangled with our thoughts dysregulate the generation, experience and regulation of emotion?

We tested whether cognitive fusion impairs emotion differentiation and thereby mediates relations between cognitive fusion and depression and panic symptoms among 55 adults (Mage = 26.8 (3.9), 50.9% women). Using visual stimuli, we elicited multiple emotion states and measured (a) emotional intensity - the subjective emotion intensity of elicited emotions (i.e. Specific Emotion Intensity - SEI), as well as (b) emotional differentiation - the degree of co-activation of multiple negative emotions when a specific emotion was elicited (i.e. Multiple Emotion Co-Activation - MECA). First, as hypothesised, we found that cognitive fusion predicted lower levels of emotion differentiation (MECA). In contrast, as hypothesised, these effects were significantly greater than the (null) effects of cognitive fusion on emotion intensity (SEI). Second, as predicted, MECA, but not SEI, predicted depression and panic symptoms. Finally, we found that MECA mediated the effects of cognitive fusion on depression and panic symptoms. The present findings contribute novel, preliminary empirical insight into associations between cognitive fusion, impaired emotion differentiation and mental ill-health.

ATTENTIONAL BIAS TEMPORAL DYNAMICS PREDICT POSTTRAUMATIC STRESS SYMPTOMS: A PROSPECTIVE-LONGITUDINAL STUDY AMONG SOLDIERS.

BACKGROUND: Attentional bias (AB) to threat is thought to play a key role in the development and maintenance of posttraumatic stress symptomatology (PTS). Empirical evidence though is inconsistent. Some studies report associations between AB towards, threat and PTS; other studies report associations between AB away from threat and PTS; yet other studies fail to find any association. We propose that prospective-longitudinal study of AB as a dynamic process, expressed from moment to moment in time, may help to understand these mixed findings and the role of AB in PTS. METHODS: We tested cross-sectional and prospective-longitudinal associations between AB and PTS among German soldiers from pre- to post-deployment in Afghanistan (n = 144). AB to threat and positive emotion stimuli (angry/happy faces) was measured using the dot-probe task. PTS was assessed by the PTSD Checklist. The number of traumatic experiences was assessed using CIDI-traumatic experience lists for military. RESULTS: We found that AB dynamics (i.e., towards, away, temporal variability) at pre- and post-deployment, with respect to angry and happy faces, predicted higher levels of PTS after deployment as a function of number of intermediate traumatic experiences. Traditional aggregated mean bias scores did not similarly prospectively predict PTS post deployment. CONCLUSIONS: Findings indicate that AB to emotionally arousing stimuli may play an important function in the development and maintenance of PTS. We argue that mixed and null findings appear to be due to failure to model the within-subject temporal variability in AB expression. Theoretical, empirical, and clinical implications of these findings are discussed.

Peak experiences during insight mindfulness meditation retreats and their salutary and adverse impact: A prospective matched-controlled intervention study.

OBJECTIVE: We sought to address a growing debate regarding the adverse and salutary impact of unusual, extraordinary or intense subjective experiences during meditation-based interventions. To do so, we empirically characterized such peak experiences during an intensive meditation intervention and their impact postintervention. METHOD: We conducted a preregistered prospective intervention study among 96 adults who registered for 6-day insight (Vipassana) mindfulness meditation retreats and 47 matched controls. Controls were selected from a pool of 543 people recruited from the same community of meditators as retreat participants and systematically matched to retreat participants on age and lifetime meditation experience. Measures included the novel Peak Meditative Experience Scale and the Impact of PMES. RESULTS: Seventeen peak experiences that were primarily pleasant (e.g., deep and unusual peace, aha! Moment) occurred more frequently among retreat participants than among matched controls in daily living (ps < .05; mean ϕ = .33). In contrast, 14 peak experiences that were mostly unpleasant (e.g., flashbacks, overwhelming sadness) occurred at similar rates in both groups (ps > .05). At 2-week follow-up, the perceived impact of all pleasant and most unpleasant peak experiences was more salutary than adverse (ps ≤ .015; M Cohen's d = 1.61). CONCLUSIONS: Peak experiences that resulted from meditation retreats were primarily pleasant and had a large salutary impact postretreat. Inconsistent with conclusions from uncontrolled retrospective studies, findings document that intensive insight mindfulness meditation training in retreats may not contribute to unpleasant peak experiences and even when they occurred their impact was typically more salutary than adverse. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The role of maternal postmigration living difficulties in intergenerational trauma transmission among asylum-seeker mother-child dyads: Exploring complex posttraumatic stress disorder as a mechanism.

OBJECTIVE: Among forcibly displaced people, maternal trauma and stress have been implicated in poor child socioemotional outcomes via intergenerational trauma transmission. This study explored the role of maternal postmigration living difficulties (PMLD) in the pathway linking maternal trauma, trauma-related psychopathology, and child socioemotional outcomes among mother-child dyads seeking asylum in a high-risk urban setting. METHOD: Participants were East African (Eritrean) mothers (N = 127) of preschool-aged children seeking asylum in Israel. Using moderated mediation analysis, we tested whether and how PMLD may moderate the mediating role of current maternal International Classification of Diseases, 11th revision (ICD-11) posttraumatic stress disorder (PTSD) and complex posttraumatic stress disorder disturbances in self-organization (DSO) symptoms between past maternal trauma exposure and current postdisplacement child internalizing and externalizing difficulties. Children's direct exposure to adverse life experiences was controlled for. RESULTS: Maternal PTSD symptoms mediated the association between past maternal trauma exposure and child internalizing difficulties, but not externalizing difficulties, across all levels of current maternal PMLD. However, maternal DSO symptoms mediated internalizing and externalizing child outcomes, but only among mothers reporting high levels of current PMLD. CONCLUSION: This study provides novel evidence that PMLD may amplify the toxicity of past maternal trauma exposure for poor child socioemotional outcomes via ICD-11 DSO symptoms. The intergenerational transmission pathway via the narrower fear-based ICD-11 PTSD, however, is independent of the degree of maternal PMLD. Findings suggest that policies designed to buffer intergenerational trauma transmission among forcibly displaced people may need to consider the toxicity of PMLD as well as enable mothers to heal from PTSD. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Complex posttraumatic stress disorder in intergenerational trauma transmission among Eritrean asylum-seeking mother-child dyads.

Background: Traumatic stress among forcibly displaced people has a variety of adverse consequences beyond individual mental health, including implications for poor socioemotional developmental outcomes for their children post-displacement.Objective: This study explored the intergenerational transmission of maternal ICD-11 Complex Posttraumatic Stress Disorder (CPTSD) and depression among asylum-seeking mothers for their children's internalizing and externalizing difficulties.Method: Participants were 127 trauma-affected Eritrean mothers of preschool-aged children in Israel. The severity of child difficulties was compared between mothers with probable ICD-11 CPTSD (94.5% comorbid depression), ICD-11 PTSD (48.5% comorbid depression), unimorbid depression, and healthy mothers, using multivariate analyses of variance, while controlling for children's direct exposure to adverse life experiences.Results: Probable ICD-11 CPTSD and PTSD were present in 23.6% and 26.0% of mothers, respectively. Relative to maternal PTSD, CPTSD was significantly and strongly associated with elevated child internalizing symptoms (d = 2.44) and marginally significantly, although strongly, associated with child externalizing symptoms (d = 1.30). Post-hoc exploratory analyses documented that, relative to maternal PTSD and depression, CPTSD and depression comorbidity was marginally significantly but strongly associated with child internalizing (SMD = .67), but not externalizing symptoms (SMD = .35).Conclusions: Findings implicate maternal CPTSD and comorbid depression in child socio-emotional development and inform clinical assessment, prevention, and intervention to attenuate poor development among children in unstable post-displacement settings.

Trauma among forcibly displaced people has a variety of aversive multisystemic consequences, compromising the socioemotional development of non-exposed children.ICD-11 complex posttraumatic stress disorder (CPTSD) and comorbid depression may be functionally important to elevated risk for maternal intergenerational trauma transmission, even relative to ICD-11 posttraumatic stress disorder (PTSD).To effectively attenuate intergenerational transmission of trauma post-displacement, efforts and resources should be invested in maternal mental health care as well as socio-culturally adapted, trauma-sensitive parenting training.

Vulnerabilities in social anxiety: Integrating intra- and interpersonal perspectives.

What are the major vulnerabilities in people with social anxiety? What are the most promising directions for translational research pertaining to this condition? The present paper provides an integrative summary of basic and applied translational research on social anxiety, emphasizing vulnerability factors. It is divided into two subsections: intrapersonal and interpersonal. The intrapersonal section synthesizes research relating to (a) self-representations and self-referential processes; (b) emotions and their regulation; and (c) cognitive biases: attention, interpretation and judgment, and memory. The interpersonal section summarizes findings regarding the systems of (a) approach and avoidance, (b) affiliation and social rank, and their implications for interpersonal impairments. Our review suggests that the science of social anxiety and, more generally, psychopathology may be advanced by examining processes and their underlying content within broad psychological systems. Increased interaction between basic and applied researchers to diversify and elaborate different perspectives on social anxiety is necessary for progress.

Looking inside the black box of mindfulness meditation: Investigating attention and awareness during meditation using the mindful awareness task (MAT).

Training attention and awareness in mindfulness meditation is theorized to be essential for the cultivation of mindfulness and its salutary outcomes. Yet, the empirical foundation for this central premise in mindfulness science is surprisingly small due to a limited methodological capacity to measure attention and awareness during mindfulness meditation. Accordingly, we set out to measure and study these processes in a laboratory study (N = 143, 76.92% female) using a novel behavioral measurement paradigm-the mindful awareness task (MAT). We empirically characterized attention and awareness during mindfulness meditation and found novel behavioral evidence indicating that, as long-theorized, these processes were related to previous mindfulness meditation practice, attitudinal qualities of mindfulness, attention regulation, and mental health. Furthermore, we found that the accuracy of self-reported mindfulness was, paradoxically, dependent on behavioral capacities for mindful awareness; and that sustained visual attention and executive functions, measured via cognitive-experimental tasks, were not meaningfully related to attention and awareness during mindfulness meditation. In contrast, the MAT demonstrated sound psychometric performance as a measure of mindful awareness, and may overcome significant limitations of extant mindfulness measurement methods. Collectively, findings challenge conceptual and methodological assumptions in mindfulness science, provide a novel paradigmatic direction for research on mindfulness, and present long-awaited evidence that attention and awareness during mindfulness meditation may indeed be fundamental to its practice, cultivation, and salutary functions. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Effect of mindfulness-based trauma recovery for refugees on shame and guilt in trauma recovery among African asylum-seekers.

We sought to, first, better understand the role of emotional responding, and specifically shame and guilt, in trauma recovery among asylum-seekers following forced displacement; and, second, to explore whether therapeutic effects of a mindfulness- and compassion-based intervention on trauma recovery among asylum-seekers are mediated by therapeutic effects of the intervention on shame and guilt. Study aims were tested through a randomized waitlist-controlled trial of a 9-week Mindfulness-Based Trauma Recovery for Refugees program among a community sample of 158 Eritrean asylum-seekers (55.7% female) residing in an unstable high-risk urban postdisplacement setting in the Middle East (Israel). First, in a cross-product test of parallel mediation, we found that shame, but not guilt, mediated the preintervention associations between traumatic stress exposure history, as well as current postmigration living difficulties, and current posttraumatic stress (abShame = .035, 95% CI [.024, .048], abShame = .183, 95% CI [.122, .249]) and depression (abShame = .384, 95% CI [.234, .55], abShame = .405, 95% CI [1.117, 2.693]) symptom severity. Second, in a linear mixed effects model of mediation, we found that reduced shame from pre- to postintervention, mediated the effect of MBTR-R, relative to waitlist control, on improved posttraumatic stress (ACMEShame = -.18, BCa 95% CI [-.34, -.04]) and depression (ACMEShame = -1.78, BCa 95% CI [-3.29, -.29]) symptom severity outcomes. Findings provide insight into the potential role of shame in trauma- and stress-related recovery among FDPs (forcibly displaced people). Findings indicate that mindfulness- and compassion-based training promotes trauma recovery, in part, through reducing feelings of shame postdisplacement. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

COVID-19 and Mental Health Among People Who Are Forcibly Displaced: The Role of Socioeconomic Insecurity.

OBJECTIVE: Forcibly displaced persons may be at elevated risk for poor mental health outcomes because of the COVID-19 pandemic. This study sought to examine associations between COVID-19-related socioeconomic insecurity and mental health outcomes among asylum seekers. METHODS: The authors evaluated the association between the degree of food, housing, and income insecurity related to the pandemic and mental health outcomes among East African asylum seekers in a high-risk, postdisplacement setting in the Middle East (i.e., Israel). RESULTS: Anxiety symptom severity (p=0.03) as well as the rate of suicidal ideation among women (odds ratio [OR]=2.81, p=0.016) were significantly elevated in a community sample of asylum seekers during the COVID-19 pandemic (N=66) relative to a similar sample (N=158) from the same community and context assessed before the pandemic. No differences between the two groups were observed for severity or rate of probable depression or posttraumatic stress disorders. In addition, among the sample assessed during the pandemic, socioeconomic insecurity due to the pandemic was strongly associated with elevated symptom severity and probable anxiety, depression, and posttraumatic stress disorders as well as suicidal ideation (R2 range=0.19-0.35; OR range=4.54-5.46). CONCLUSIONS: Findings are consistent with growing evidence of a mental health crisis among asylum seekers that is linked to COVID-19 control policies and residential status policies. The results highlight the risk for suicidal ideation linked to intersectional marginalization among female asylum seekers. These findings may inform postdisplacement policy making, social justice advocacy, humanitarian aid, and clinical science and practice to mitigate poor mental health outcomes associated with COVID-19 among forcibly displaced persons.

Exploration of a factor mixture-based taxonic-dimensional model of anxiety sensitivity and transdiagnostic psychopathology vulnerability among trauma-exposed adults.

The aim of this study was to evaluate the associations between a factor mixture-based taxonic-dimensional model of anxiety sensitivity (AS) and posttraumatic stress, panic, generalized anxiety, depression, psychiatric multimorbidity, and quality of life among a young adult sample exposed to traumatic stress (N = 103, n (females) = 66, M (age) = 23.68 years, SD (age) = 9.55). Findings showed support for the conceptual and operational utility of the AS taxonic-dimensional model with respect to concurrent transdiagnostic vulnerability among trauma-exposed adults. Specifically, relative to the low-AS group, the high-AS group demonstrated elevated levels of panic, depressive, and posttraumatic stress symptom severity as well as greater psychiatric multimorbidity and poorer quality of life. Furthermore, past-month MDD, GAD, PTSD, and panic attacks occurred nearly exclusively among the high-AS group. Continuous AS physical and psychological concerns scores were found to be significantly related to levels of panic and posttraumatic stress symptom severity, psychiatric multimorbidity as well as panic attack status only among the high-AS group and not among the low-AS group. Findings are discussed with respect to their implications for the conceptual and operational utility of the FMM-based taxonic-dimensional model of AS, related vulnerability for psychopathology in the context of trauma, and the clinical implications of these findings for assessment and intervention.

Nature and role of change in anxiety sensitivity during NRT-aided cognitive-behavioral smoking cessation treatment.

This study evaluated the associations between change in anxiety sensitivity (AS; fear of the negative consequences of anxiety and related sensations) and lapse and relapse during a 4-week group NRT-aided cognitive-behavioral Tobacco Intervention Program. Participants were 67 (44 women; M (age) = 46.2 years, SD = 10.4) adult daily smokers. Results indicated that participants who maintained high levels of AS from pretreatment to 1 month posttreatment, compared to those who demonstrated a significant reduction in AS levels during this time period, showed a significantly increased risk for lapse and relapse. Further inspection indicated that higher continuous levels of AS physical and psychological concerns, specifically among those participants who maintained elevated levels of AS from pre- to posttreatment, predicted significantly greater risk for relapse. Findings are discussed with respect to better understanding change in AS, grounded in an emergent taxonic-dimensional factor mixture model of the construct, with respect to lapse and relapse during smoking cessation.

Candidate mechanisms of action of mindfulness-based trauma recovery for refugees (MBTR-R): Self-compassion and self-criticism.

OBJECTIVE: Mindfulness- and compassion-based interventions may represent a promising intervention approach to the global mental health crisis of forced displacement. Specifically, Mindfulness-Based Trauma Recovery for Refugees (MBTR-R)-a mindfulness- and compassion-based, trauma-sensitive, and socioculturally adapted intervention for refugees and asylum-seekers-has recently demonstrated randomized control evidence of therapeutic efficacy and safety. Yet, little is known about potential mechanisms underlying these therapeutic effects for trauma recovery and for refugees and asylum-seekers. METHOD: Thus, we examined adaptive and maladaptive forms of self-referentiality, namely self-compassion and self-criticism, as mechanisms of action for trauma recovery in a randomized wait-list control trial of MBTR-R among a community sample of 158 traumatized and chronically stressed asylum-seekers (46% female) in an urban postdisplacement setting (Middle East). Self-compassion and self-criticism were measured vis-à-vis an experimental Self-Referential Encoding Task (SRET) designed to quantify cognitive processes underlying self-compassion and self-criticism using diffusion modeling, a computational modeling approach to quantify cognitive processes underlying decision-making from behavioral reaction time data. RESULTS: Findings indicate that self-compassion and self-criticism were associated with trauma- and stress-related psychopathology at preintervention. Relative to wait-list controls, MBTR-R led to significant elevation in self-compassion, and reduction in self-criticism, from pre to postintervention. Finally, pre to postintervention change in self-criticism significantly mediated therapeutic effects of MBTR-R on depression and posttraumatic stress disorder (PTSD) outcomes, while pre to postintervention change in self-compassion only mediated therapeutic effects on PTSD outcomes. CONCLUSIONS: Findings speak to the importance of (mal)adaptive self-referentiality as a target mechanism in MBIs and trauma recovery broadly, and among refugees and asylum-seekers specifically. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

First, do no harm: An intensive experience sampling study of adverse effects to mindfulness training.

OBJECTIVE: The study of safety and adverse effects of mindfulness-based interventions (MBIs) is limited. We propose a novel reliable change index (RCI) approach to experience sampling (ES) data to begin to understand the common domains, frequency, severity, risk for, and context of adverse responding to mindfulness meditation practice and brief MBI. METHODS: Over the course of a 21-day MBI among 82 meditation-naïve participants, we estimated (i) momentary adverse effects during mindfulness meditation practice and (ii) sustained adverse effects in daily living following the intervention. RESULTS: First, RCI analyses of experience sampling of mindfulness meditation document that 87% of participants demonstrated at least one momentary adverse effect during meditation, most commonly anxiety; and subject-level temporal variability or instability in experience samples of daily living did not account for momentary adverse effects attributed to mindfulness meditation sessions. Second, 25% of participants experienced a sustained adverse effect in daily living at post-intervention. Yet, neither momentary adverse effects to meditation nor vulnerability factors at pre-intervention predicted adverse effects at post-intervention. CONCLUSIONS: Findings illustrate that mindfulness meditation may be transiently anxiogenic for many participants, yet, these experiences are unlikely to constitute objective harm per se. Furthermore, observed deterioration in daily living post-intervention cannot be attributed to momentary adverse effects in response to mindfulness meditation. We speculate that observed deterioration in daily living post-intervention may thus be better explained by increased awareness to internal states following mindfulness training. Findings highlight the potential utility of applying a RCI approach to intensive ES measurement to quantify adverse effects of mindfulness training specifically and mental health interventions broadly.

Simulating thoughts to measure and study internal attention in mental health.

Our mind's eye and the role of internal attention in mental life and suffering has intrigued scholars for centuries. Yet, experimental study of internal attention has been elusive due to our limited capacity to control the timing and content of internal stimuli. We thus developed the Simulated Thoughts Paradigm (STP) to experimentally deliver own-voice thought stimuli that simulate the content and experience of thinking and thereby experimental study of internal attentional processes. In independent experiments (N = 122) integrating STP into established cognitive-experimental tasks, we found and replicated evidence that emotional reactivity to negative thoughts predicts difficulty disengaging internal attention from, as well as biased selective internal attention of, those thoughts; these internal attention processes predict cognitive vulnerability (e.g., negative repetitive thinking) which thereby predict anxiety and depression. Proposed methods and findings may have implications for the study of information processing and attention in mental health broadly and models of internal attentional (dys)control in cognitive vulnerability and mental health more specifically.

A Functional Network Perspective on Posttraumatic Stress in Refugees: Implications for Theory, Classification, Assessment, and Intervention.

There is an important, long-standing debate regarding the universality vs. specificity of trauma-related mental health symptoms in socio-culturally and linguistically diverse population groups, such as refugees and asylum seekers. Network theory, an emerging development in the field of psychological science, provides a novel data analytic methodology to evaluate and empirically examine long-standing questions about the structure and function of posttraumatic stress symptoms. We sought to empirically model the functional network of posttraumatic stress symptoms among East African refugees who survived multiple potentially traumatic events. A sample of 148 Sudanese and Eritrean male asylum seekers (M(SD)age = 32.60(7.13) were recruited from the community in Israel. The nature and function(s) of posttraumatic symptoms (Harvard Trauma Questionnaire) were modeled using regularized partial correlation models to derive a network of symptoms. Spinglass and exploratory graph analysis walktrap algorithms were then used to identify functional "circuits of symptoms" or clusters of nodes within the network. Analyses revealed a functional symptom circuitry that shares features with the predominant western model of posttraumatic stress disorder; as well as unique functional clusters of symptoms inconsistent with nosology and symptomatology observed in studies of Western populations. Findings may have important implications for theory, classification, assessment, candidate mechanisms that may drive and maintain posttraumatic stress, and in turn may inform prevention or treatment for socio-culturally diverse forcibly displaced population groups.

Posttraumatic stress symptoms and cigarette deprivation in the prediction of anxious responding among trauma-exposed smokers: a laboratory test.

INTRODUCTION: The present investigation examined the main and interactive effects of posttraumatic stress symptom severity and 12-hr cigarette deprivation (cf. smoking as usual) in the prediction of anxious responding during a 4-min 10% carbon dioxide (CO2)-enriched air laboratory challenge. It was hypothesized that 12-hr cigarette deprivation would exacerbate the effects of posttraumatic stress symptom severity with regard to anxious responding during the challenge. METHODS: Participants were 63 daily smokers (46.0% women; M(age) = 30.79, SD = 13.12, range = 18-60) who reported experiencing one or more traumatic events. The study consisted of two laboratory sessions. At the first session, participants were administered a structured diagnostic interview and completed self-reported measures. Eligible participants were randomly assigned to one of two conditions for the second session: (a) 12-hr cigarette deprivation or (b) noncigarette deprivation (i.e., smoking as usual). At the second session, participants' smoking status was biochemically verified, and all eligible participants then were administered the 10% CO2-enriched air laboratory challenge protocol. RESULTS: The main and interactive effects of posttraumatic stress symptom severity and the smoking-as-usual condition--not the hypothesized 12-hr cigarette deprivation condition--were significantly predictive of peri-challenge anxiety. The interactive effect of posttraumatic stress by smoking as usual was significant at Minutes 3 and 4 of the challenge specifically. CONCLUSIONS: The present investigation provided novel findings related to the roles of cigarette deprivation and smoking with regard to self-reported anxious responding, among trauma-exposed smokers, during a challenge paradigm.

Multimethod study of distress tolerance and PTSD symptom severity in a trauma-exposed community sample.

Despite initial evidence linking distress tolerance to posttraumatic stress disorder (PTSD) symptom severity, there is a need for the investigation of interrelations among multiple measures of distress tolerance and PTSD symptom severity. Therefore, the present study investigated concurrent relations among multiple measures of distress tolerance, as well as the relations between these measures and PTSD symptom severity, within a trauma-exposed community sample. The sample consisted of 81 trauma-exposed adults (63.1% women). Results indicated that Distress Tolerance Scale (Simons & Gaher, 2005) scores, but no other measures of distress tolerance were significantly related to PTSD symptom severity above and beyond the variance accounted for by number of traumas, trait-level neuroticism, and participant sex. Implications and future directions are discussed.

Incremental validity of mindfulness skills in relation to emotional dysregulation among a young adult community sample.

The present investigation examined the incremental predictive validity of mindfulness skills, as measured by the Kentucky Inventory of Mindfulness Skills (KIMS), in relation to multiple facets of emotional dysregulation, as indexed by the Difficulties in Emotion Regulation Scale (DERS), above and beyond variance explained by negative affectivity, anxiety sensitivity, and distress tolerance. Participants were a nonclinical community sample of 193 young adults (106 women, 87 men; M(age) = 23.91 years). The KIMS Accepting without Judgment subscale was incrementally negatively predictive of all facets of emotional dysregulation, as measured by the DERS. Furthermore, KIMS Acting with Awareness was incrementally negatively related to difficulties engaging in goal-directed behavior. Additionally, both observing and describing mindfulness skills were incrementally negatively related to lack of emotional awareness, and describing skills also were incrementally negatively related to lack of emotional clarity. Findings are discussed in relation to advancing scientific understanding of emotional dysregulation from a mindfulness skills-based framework.

Does mindfulness practice promote psychological functioning or is it the other way around? A daily diary study.

Mindfulness-based interventions are commonly used to reduce psychological symptoms and enhance positive qualities of human functioning. However, the influence of mindfulness practice dosage remains poorly understood, limiting dissemination and implementation efforts. The current study examined the association between practice dosage and several constructs related to psychological functioning (positive and negative affect, state mindfulness) over the course of a standardized mindfulness-based intervention (Mindfulness-Oriented Recovery Enhancement). Twenty-five participants completed daily diary assessments for 12 weeks. Two-part gamma regression models examined the dichotomous (did practice occur?) and continuous (how much practice?) components of practice minutes. Practice time and outcomes showed same-day relationships in the expected directions. Lagged models, however, showed no evidence that current day practice time predicts subsequent day outcomes. In contrast, higher current day negative affect predicted less subsequent day practice time, and higher current day mindfulness predicted more subsequent day practice time. In a post hoc analysis, practice time moderated the link between day-to-day affect, strengthening the link for positive affect and weakening the link for negative affect. Collectively, these findings suggest that the causal direction linking practice time and outcome may flow from outcome to practice time, rather than the reverse-with potential recursive relationships between these factors. Further examination of lagged relationships between practice time and outcome as well as random assignment of participants to varying practice dosages (e.g., in within-person microrandomized trials) may help clarify the influence of this central treatment ingredient within mindfulness-based interventions. (PsycInfo Database Record (c) 2020 APA, all rights reserved).