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).

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).

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.

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.

The Metacognitive Processes of Decentering Scale: Development and initial validation of trait and state versions.

The ability to decenter from internal experiences is important for mental health. Consequently, improving decentering is a common therapeutic target, particularly for mindfulness-based interventions. However, extant decentering measures are limited as they fail to directly assess all 3 metacognitive processes recently theorized to subserve decentering. We thus conducted 4 studies to develop and test the Metacognitive Processes of Decentering-Trait (MPoD-t) and State (MPoD-s) scales. Consistent with the metacognitive processes model, exploratory factor analysis (N = 355) and then bifactor exploratory structural equation modeling (N = 275) indicated the MPoD-t was composed of three independent yet interrelated lower-order factors, metaawareness, (dis)identification with internal experience, and (non)reactivity to internal experience, which subserved an emergent, higher-order, decentering factor. We next found evidence of the MPoD-t's convergent validity; as well as known-groups criterion validity, wherein mindfulness practitioners reported higher MPoD-t scores than nonpractitioners. Item response theory analyses were then used to identify a subset of 3 MPoD-t items for the MPoD-s. Finally, we found evidence that the MPoD-s was sensitive to changes in state decentering following a brief mindfulness induction relative to an active control condition; and that MPoD-s changes mediated the effect of mindfulness on levels of pain and related outcomes among a sample of preoperative surgery patients (N = 82). These studies indicate the trait and state versions of the MPoD may prove useful for the study of decentering and its constituent metacognitive processes. As such, the MPoD may help advance our understanding of how the metacognitive processes of decentering support mental health and well-being. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

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).

Behavioral assessment of mindfulness: defining features, organizing framework, and review of emerging methods.

The development and implementation of psychometrically sound behavioral measures of mindfulness are important to advancing the science of mindfulness. To help organize, conceptualize, and guide the development of behavioral measures of mindfulness, we propose defining features, and a four-domain framework, of the behavioral assessment of mindfulness. The framework domains include measurement of (I) objects of mindful awareness, (II) time-course of mindful awareness, (III) sensitivity of mindful awareness, and (IV) attitudes toward present moment experience. We describe mindfulness processes in each domain, and review extant behavioral method(s) and specific behavioral measure(s) of mindfulness processes per domain. Four of the 12 reviewed measures demonstrate acceptable reliabilities and preliminary evidence of construct validity as measures of mindfulness processes.

Metacognitive processes model of decentering: emerging methods and insights.

We previously proposed that three metacognitive processes - meta-awareness, disidentification from internal experience, and reduced reactivity to thought content - together constitute decentering. We review emerging methods to study these metacognitive processes and the novel insights they provide regarding the nature and salutary function(s) of decentering. Specifically, we review novel psychometric studies of self-report scales of decentering, as well as studies using intensive experience sampling, novel behavioral assessments, and experimental micro-interventions designed to target the metacognitive processes. Findings support the theorized inter-relations of the metacognitive processes, help to elucidate the pathways through which they may contribute to mental health, and provide preliminary evidence of their salutary roles as mechanisms of action in mindfulness-based interventions.

Brief mindfulness training de-couples the anxiogenic effects of distress intolerance on reactivity to and recovery from stress among deprived smokers.

OBJECTIVE: We tested whether mindfulness de-couples the expected anxiogenic effects of distress intolerance on psychological and physiological reactivity to and recovery from an anxiogenic stressor among participants experimentally sensitized to experience distress. METHOD: N = 104 daily smokers underwent 18-hours of biochemically-verified smoking deprivation. Participants were then randomized to a 7-min analogue mindfulness intervention (present moment attention and awareness training; PMAA) or a cope-as-usual control condition; and subsequently exposed to a 2.5-min paced over breathing (hyperventilation) stressor designed to elicit acute anxious arousal. Psychological and physiological indices of anxious arousal (Skin Conductance Levels; SCL) as well as emotion (dys)regulation (Respiratory Sinus Arrhythmia; RSA) were measured before, during and following the stressor. RESULTS: We found that PMAA reduced psycho-physiological dysregulation in response to an anxiogenic stressor, as well as moderated the anxiogenic effect of distress intolerance on psychological but not physiological responding to the stressor among smokers pre-disposed to experience distress via deprivation. CONCLUSIONS: The present study findings have a number of theoretical and clinical implications for work on mindfulness mechanisms, distress tolerance, emotion regulation, and smoking cessation interventions.

Decentering in the process of cultivating mindfulness: An experience-sampling study in time and context.

OBJECTIVE: Through intensive experience sampling, we studied the practice and development of mindfulness as a dynamic process in time and context. We focused on role(s) and salutary function(s) of mindfulness and decentering for emotional experience over the course of mindfulness practice and development. METHOD: Eighty-two meditation-naive adults from the general community, 52% women, Mage (SD) = 25.05 (3.26) years, participated in a 1-month, 6-session, Mahasi-based mindfulness-training intervention (Mahasi, 1978). We collected 52 digital experience samples of mindfulness, decentering, and emotional experience, in the context of daily living and meditative states, over the course of the program. RESULTS: Data were analyzed via time-varying effects models (TVEMs) and mixed-linear models (MLMs) within a single-subject, multiple-baseline experimental design. First, over the course of the intervention, participants grew more mindful and decentered in daily living and meditative states. Second, the association between mindfulness and decentering was significant in daily living, although the magnitude of this association was stronger in meditative states. Third, we observed the same contextualized pattern of relations between mindfulness and emotional valence (happy > sad) as well as arousal (calm > nervous). Finally, whereas decentering mediated the effect of mindfulness on reduced emotional arousal in meditative states, it did not similarly mediate the effect of mindfulness on positive emotional valence. CONCLUSIONS: The present findings illustrate the insights that may be gained about mindfulness mechanisms broadly and decentering specifically through the study of mindfulness as a dynamic, contextualized developmental process over time. (PsycINFO Database Record

Experiential self-referential and selfless processing in mindfulness and mental health: Conceptual model and implicit measurement methodology.

We propose that Experiential Self-Referential Processing (ESRP)-the cognitive association of present moment subjective experience (e.g., sensations, emotions, thoughts) with the self-underlies various forms of maladaptation. We theorize that mindfulness contributes to mental health by engendering Experiential Selfless Processing (ESLP)-processing present moment subjective experience without self-referentiality. To help advance understanding of these processes we aimed to develop an implicit, behavioral measure of ESRP and ESLP of fear, to experimentally validate this measure, and to test the relations between ESRP and ESLP of fear, mindfulness, and key psychobehavioral processes underlying (mal)adaptation. One hundred 38 adults were randomized to 1 of 3 conditions: control, meta-awareness with identification, or meta-awareness with disidentification. We then measured ESRP and ESLP of fear by experimentally eliciting a subjective experience of fear, while concurrently measuring participants' cognitive association between her/himself and fear by means of a Single Category Implicit Association Test; we refer to this measurement as the Single Experience & Self Implicit Association Test (SES-IAT). We found preliminary experimental and correlational evidence suggesting the fear SES-IAT measures ESLP of fear and 2 forms of ESRP- identification with fear and negative self-referential evaluation of fear. Furthermore, we found evidence that ESRP and ESLP are associated with meta-awareness (a core process of mindfulness), as well as key psychobehavioral processes underlying (mal)adaptation. These findings indicate that the cognitive association of self with experience (i.e., ESRP) may be an important substrate of the sense of self, and an important determinant of mental health. (PsycINFO Database Record

Dispositional mindfulness in trauma recovery: Prospective relations and mediating mechanisms.

This study examined the protective properties and candidate mediating processes (cognitive fusion and cognitive suppression) linking dispositional mindfulness to distal risk factors (negative affect, anxiety sensitivity, rumination) and psychopathology symptom outcomes (depression and posttraumatic stress symptoms) following trauma exposure. To do so, a community-based sample of adults was longitudinally studied in the six-months following exposure--within 30-days (T1), 3-months (T2), and 6-months (T3)--to a shared disaster-related potentially traumatic event (PTE). Specifically, we found that cognitive fusion predicted, and mediated, the effect of mindfulness on outcomes related to distress post-trauma including negative affect, depression and posttraumatic stress symptoms. Complementary to these effects, we found that cognitive suppression predicted, and mediated, the effect of mindfulness on distal risk factors linked to negative self-referential processes including rumination and anxiety sensitivity. Findings are discussed with respect to their theoretical and clinical implications for the potential role and mechanisms of mindfulness in recovery following trauma.

State Mindfulness Scale (SMS): development and initial validation.

The goal of the present research was to develop and test a novel conceptual model and corresponding measure of state mindfulness-the State Mindfulness Scale (SMS). We developed the SMS to reflect traditional Buddhist and contemporary psychological science models of mindfulness not similarly reflected in extant published measures of the construct. Study 1 exploratory and confirmatory factor analyses supported a higher order 2-factor solution encompassing 1 second-order state mindfulness factor, and 2 first-order factors, one reflecting state mindfulness of bodily sensations and the other state mindfulness of mental events. Study 2 provided cross-sectional evidence of the convergent, discriminant, and incremental convergent validity of SMS scores with respect to other measures of state and trait mindfulness. Study 3, a randomized control experimental mindfulness intervention study, yielded a number of key findings with respect to SMS stability as a function of time and context, construct validity, incremental sensitivity to change in state mindfulness over time, and incremental predictive criterion-related validity. Findings are discussed with respect to the potential contribution of the SMS to the study of mindfulness as a statelike mental behavior, biopsychobehavioral research on the mechanisms of mindfulness, and clinical evaluation of mindfulness. (PsycINFO Database Record (c) 2013 APA, all rights reserved).

Changes in facets of mindfulness and posttraumatic stress disorder treatment outcome.

Though there has been a recent surge of interest in the relations between facets of mindfulness and Posttraumatic Stress Disorder (PTSD), there has been a dearth of empirical studies investigating the impact of changes in facets of mindfulness on PTSD treatment outcomes. The present study tested the prospective associations between pre- to post-treatment changes in facets of mindfulness and PTSD and depression severity at treatment discharge, among 48 military Veterans in residential PTSD treatment adhering to a cognitive-behavioral framework. Together, changes in facets of mindfulness significantly explained post-treatment PTSD and depression severity (19-24% of variance). Changes in acting with awareness explained unique variance in post-treatment PTSD severity and changes in nonjudgmental acceptance explained unique variance in post-treatment depression severity. These results remained significant after adjusting for shared variance with length of treatment stay.

Salutary proximal processes and distal mood and anxiety vulnerability outcomes of mindfulness training: a pilot preventive intervention.

The present study evaluated the effect of a brief mindfulness-based preventive intervention on (a) dispositional (MAAS; Brown & Ryan, 2003) and state (SMS; Tanay & Bernstein, 2010) mindfulness; (b) putative proximal factors/processes engendered through the development of mindfulness, including increased decentering (EQ-D; Fresco et al., 2007) and reduced experiential avoidance (AAQ; Hayes et al., 2004); and (c) distal mood and anxiety vulnerability factors, including reduced depression-related dysfunctional attitudes, (DAS; de Graaf, Roelofs, & Huibers, 2009), anxiety sensitivity (ASI-3; Taylor et al., 2007), and negative affectivity (PANAS-NA; Watson, Clark, & Tellegen, 1988) among a university-community sample in Israel. Fifty-three adult participants between the ages of 20 and 52 (M(age)=25.2 years, SD(age)=4.3 years; 65.4% women) were recruited from the Haifa University community. Nineteen participants were randomly assigned to an experimental condition (M(age)=25.3 years, SD(age)=4.3 years; 66% women) and studied prospectively over the course of a four-session (21-day) mindfulness skills training intervention; and 34 participants were randomly assigned to a no-intervention (control) condition (M(age)=24.9 years, SD(age)=2.4years; 64.7% women) and studied prospectively. Findings demonstrate statistically robust and clinically significant relations between mindfulness and the theorized proximal and distal mood and anxiety vulnerability factors. Findings are discussed with respect to their theoretical implications for better understanding mindfulness-psychopathology vulnerability relations, clinical implications for larger-scale universal and selective transdiagnostic prevention efforts, and future directions for this area of research.

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.

Emotional-vulnerability and mindfulness: a preliminary test of associations among negative affectivity, anxiety sensitivity, and mindfulness skills.

This study evaluated associations between general (negative affectivity) and specific (anxiety sensitivity) factors that may relate to the mindfulness skill domains assessed by the Kentucky Inventory of Mindfulness Skills. Participants were 154 young adults (88 females; M(age) = 22.4 years, SD = 7.9) recruited from the community. Partially consistent with predictions, higher levels of negative affectivity were significantly associated with lower levels of Awareness, Acceptance, and Describe mindfulness skills, and higher levels of anxiety sensitivity were significantly associated with lower levels of Awareness and Acceptance mindfulness skills. Additionally, negative affectivity and anxiety sensitivity each demonstrated unique relations to participants' ability to experience the present state without evaluating or judging its content (Accept factor), after accounting for their shared variance, but only anxiety sensitivity demonstrated a unique association to the Act with Awareness factor independent of variance explained by negative affectivity. Findings are discussed in relation to theory and research on mindfulness processes.