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ABSTRACTDepression is associated with increased maintenance of negative affect (NA) and reduced - blunted and short-lived - maintenance of positive affect (PA). Studies have focused on factors associated with the maintenance of NA, specifically, the emotion regulation strategy of brooding and the capacity to hold negative affective experiences in working memory (WM). Despite its theoretical importance, less attention has been given to factors associated with the maintenance of PA in depression. This study aims to synthesise factors playing a role in the maintenance of both NA and PA. Specifically, we used self-reported assessment of PA and NA regulation and performance-based measures of NA and PA processing in WM to predict depressive symptoms severity. Participants (N = 219) completed the Affective Maintenance Task (AMT, Mikels et al., 2008), which provided performance-based measures of PA and NA maintenance, and filled out questionnaires assessing brooding, positive rumination and depressive severity. Brooding, positive rumination and AMT-based measures of positive (but not negative) affective information processing were independently associated with depressive symptoms. We highlight the unique contributions of PA processing, as well as of self-reported emotion regulation strategies in understanding depression maintenance.

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Los estudios constatan el papel de la rumia depresiva como un amplificador del estado de ánimo negativo, sin embargo, se conoce menos sobre la rumia relacionada con el afecto positivo. Presentamos la validez de constructo y propiedades psicométricas del cuestionario “Respuestas al afecto positivo” (RAP) en una muestra de 302 personas de la población general (55,2% mujeres), con edades entre los 18 y 68 años (M= 28,6; DT= 12,0). Los análisis factorial exploratorio y confirmatorio indican una estructura de dos factores: rumia positiva centrada en la emoción y en la persona (α= 0,88) y amortiguación (α= 0,83), ambos con una adecuada invarianza configural, métrica y escalar por sexo. Los dos factores presentan una adecuada validez convergente, discriminante e incremental con constructos relacionados con el afecto negativo y positivo. Los resultados se discuten atendiendo a los estudios revisados y se propone el RAP como instrumento de evaluación en procedimientos terapéuticos que tratan de potenciar el afecto positivo y el bienestar psicológico. (AU)

Previous studies confirm the role of depressive rumination in the exacerbation of negative mood. However, less is known about rumination in relation to positive affect. We present the construct validity and psychometric properties of the Responses to Positive Affect (RAP) questionnaire in a sample of 302 people from the general population (55.2% female), aged 18-68 years (M= 28.6, SD= 12.0). Exploratory and confirmatory factor analyses indicate a two-factor structure: emotion- and person-centered positive rumination (α= .88) and buffering (α= .83), both with adequate configural, metric and scalar invariance by sex. The two factors present adequate convergent, discriminant and incremental validity with constructs related to negative and positive affect. The results are discussed according to the studies reviewed and the RAP is proposed as an assessment instrument in therapeutic procedures that seek to enhance positive affect and psychological wellbeing. (AU)

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BACKGROUND: The co-occurrence of childhood trauma and posttraumatic stress disorder (PTSD) is highly prevalent and clinically significant. Existing research emphasizes the role of emotion regulation in the relation between childhood trauma and PTSD. Yet, research in this area has almost exclusively examined the influence of strategies aimed at regulating negative emotions, such as anger and sadness. OBJECTIVE: To extend existing research, the current study examined underlying roles of strategies for regulating positive emotions (i.e., self- and emotion-focused positive rumination and positive dampening) in the association between childhood trauma severity and PTSD symptoms. PARTICIPANTS AND SETTING: Participants were 320 trauma-exposed community individuals who reported past 30-day substance use (Mage = 35.78, 50.3% men, 81.6% white). METHOD: Analyses examined whether childhood trauma severity was indirectly related to PTSD symptoms through self-focused positive rumination, emotion-focused positive rumination, and positive dampening. RESULTS: Positive dampening, but not positive self- and emotion-focused positive rumination, indirectly explained associations between childhood trauma severity and PTSD symptoms (B = .17, SE = .03, 95% CI [.12, .24]). CONCLUSIONS: These findings highlight the potential utility of targeting positive dampening in the treatment of PTSD symptoms among individuals who use substances with a history of childhood trauma.

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BACKGROUND: Preliminary evidence suggests that Mindfulness-Based Cognitive Therapy (MBCT) is a promising treatment for bipolar disorder (BD). A proposed working mechanism of MBCT in attenuating depressive symptoms is reducing depressive rumination. The primary aim of this study was to investigate the effect of MBCT on self-reported trait depressive rumination and an experimental state measure of negative intrusive thoughts in BD patients. Exploratively, we investigated the effect of MBCT on positive rumination and positive intrusive thoughts. METHODS: The study population consisted of a subsample of bipolar type I or II patients participating in a multicenter randomized controlled trial comparing MBCT + treatment as usual (TAU) (N = 25) to TAU alone (N = 24). Trait depressive rumination (RRS brooding subscale) and intrusive thoughts (breathing focus task (BFT)) were assessed at baseline (full subsample) and post-treatment (MBCT + TAU; n = 15, TAU; n = 15). During the BFT, participants were asked to report negative, positive and neutral intrusive thoughts while focusing on their breathing. RESULTS: Compared to TAU alone, MBCT + TAU resulted in a significant pre- to post-treatment reduction of trait depressive rumination (R2 = .16, F(1, 27) = 5.15, p = 0.031; medium effect size (f2 = 0.19)) and negative intrusive thoughts on the BFT (R2 = .15, F(1, 28) = 4.88, p = 0.036; medium effect size (f2 = 0.17)). MBCT did not significantly change positive rumination or positive intrusive thoughts. CONCLUSIONS: MBCT might be a helpful additional intervention to reduce depressive rumination in BD which might reduce risk of depressive relapse or recurrence. Considering the preliminary nature of our findings, future research should replicate our findings and explore whether this reduction in rumination following MBCT indeed mediates a reduction in depressive symptoms and relapse or recurrence in BD.

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[This corrects the article DOI: 10.3389/fpsyg.2020.00789.].

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Rumination is associated with psychological adjustment and working memory (WM) capacity. Studies have shown that psychological interventions can reduce negative rumination and improve psychological adjustment and WM capacity. The present study investigated the effect of positive rumination training in expressive writing on psychological adjustment and WM updating capacity. Within an experimental design, positive rumination was manipulated for 10 participants who were maladaptive ruminators in an experiment using a 5-week training compared to the control group with nine participants. Results revealed significant enhancement of psychological adjustment and the response time (RT) of WM updating in the experimental group but not in the control group. The two groups did not show significant difference of all the variables in pretest. However, the experimental group showed significantly better outcomes than the control group in posttest. The results suggest that positive rumination training in expressive writing is effective and rumination has a causal influence on WM updating capacity.

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Positive emotion regulation is important for enhancing psychological well-being. Previous studies have adopted a cross-sectional design to examine the relationships between positive emotion regulation strategies and psychological functioning. Relatively little is known about the role of positive emotion regulation strategies in positive and negative emotions in everyday life. This study examines associations between perceived capability of savoring and trait positive rumination and everyday emotions. Among 300 Hong Kong Chinese (age 18-77 years), perceived capability of savoring the moment and positive rumination predicted higher positive emotions during positive-valenced events. Perceived capability of savoring the moment predicted lower negative emotions during positive-valenced events and higher positive emotions during negative-valenced events. Positive links between positive valence ratings of events and positive emotions were stronger among individuals who reported higher levels of perceived capability of savoring through reminiscence and greater trait emotion-focused rumination. Positive links between negative valence ratings of events and negative emotions were significant only among individuals who reported low/medium levels of perceived capability of savoring through anticipation. These findings suggest that: (a) perceived capability of savoring and trait positive rumination are key mechanisms for increasing positive emotions and (b) perceived capability of savoring fosters adaptive adjustment to stress during negative events.

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OBJECTIVES: To evaluate the psychometric properties of the Responses to Positive Affect (RPA) questionnaire in a sample of persons with bipolar disorder (BD). METHOD: Cross-sectional survey study with 107 persons with BD. The original 3-factor model of the RPA was compared with a 2-factor model. Construct validity was determined with measures of well-being, personal recovery, social role participation, and psychopathology and incremental validity was evaluated. RESULTS: The fit of the 3-factor model was acceptable for most fit indices. Subscores of the RPA revealed a significant relationship with aspects of well-being, personal recovery, and psychopathology. Dampening and self-focused positive rumination explained additional variance in personal recovery above and beyond well-being. CONCLUSIONS: The RPA is an internally consistent and valid tool to assess positive emotion regulation processes in persons with BD. Specifically, the processes of dampening and emotion-focused positive rumination seem to play an important role in BD.

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Blunted positive affect is characteristic of depression. Altered positive affect regulation may contribute to this blunting, and two regulation strategies, dampening positive affect and positive rumination, have been implicated in depression. However, the conditions under which these strategies impart risk/protective effects prior to onset of depression are unknown. The current study examined 81 healthy children (age 7-10) at low and high risk for depression on the basis of maternal history of depression and tested how dampening and positive rumination interacted with the experience of recent positive life events to predict depressive symptoms. Children at high and low risk did not differ in their use of dampening or positive rumination. However, elevated use of dampening in the context of many positive life events predicted current depressive symptoms, and specifically anhedonic symptoms, in children at low-risk for depression. These findings held when controlling for negative rumination and negative life events. Positive rumination did not interact with positive life events but was associated with higher depressive symptoms in high-risk children. Results indicate that prior to the onset of depression, positive life events may impart risk when dampening positive affect is utilized in this context, while positive rumination may increase risk for depressive symptoms.

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Positive and negative trait affect and emotion regulatory strategies have received considerable attention in the literature as predictors of psychopathology. However, it remains unclear whether individuals' trait affect is associated with responses to state positive affect (positive rumination and dampening) or negative affect (ruminative brooding), or whether these affective experiences contribute to negative or positive interpersonal event generation. Among 304 late adolescents, path analyses indicated that individuals with higher trait negative affect utilized dampening and brooding rumination responses, whereas those with higher trait positive affect engaged in rumination on positive affect. Further, there were indirect relationships between trait negative affect and fewer positive and negative interpersonal events via dampening, and between trait positive affect and greater positive and negative interpersonal events via positive rumination. These findings suggest that individuals' trait negative and positive affect may be associated with increased utilization of emotion regulation strategies for managing these affects, which may contribute to the occurrence of positive and negative events in interpersonal relationships.

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Low trait positive affect represents an affective vulnerability to depression, but little research has examined mechanisms linking low trait positive affect to depressive symptoms. The current study investigated whether the cognitive strategies of dampening and positive rumination mediated the prospective association between low trait positive affect and depressive symptoms. Participants were 209 undergraduate students who participated in an eight-week online study. Depressive symptoms and trait temperament were assessed at baseline, followed by seven weekly questionnaires which assessed cognitive strategies in response to weekly events and weekly depressive symptoms. Data were analysed using multilevel modelling following the mediation approach proposed by Nezlek. Results indicated that low trait positive affect significantly predicted less positive rumination but not greater dampening in response to weekly positive events. Less positive rumination in response to weekly positive events partially mediated the association between low trait positive affect and greater depressive symptoms across the study.

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