Introduction: Despite the prominence of interpersonal emotion regulation, particularly during adolescence, it is a relatively understudied area of investigation. Co-rumination is an interpersonal emotion regulation strategy that is frequently used by adolescents. Traditional examinations of co-rumination have focused on its occurrence in person, while largely overlooking digital modes of communication. This study was the irst to investigate adolescents' co-rumination across multiple communication modalities (i.e., in person, text, social media, phone) and its downstream association with affect and relationship closeness. Speciically, we examined: (1) the frequency of co-rumination across modalities, (2) the effect of co-rumination in one modality on the future use of co-rumination within that same modality (i.e., stability) and across other modalities (i.e., generalization); and (3) the prospective relation of co-rumination on negative affect, positive affect, and relationship closeness. Methods: Adolescents (n = 71; 33 girls and 38 boys; M age = 12.70 years) residing in Canada completed twice-daily diary surveys for 14 days. Results: Findings indicated that adolescents co-ruminate across all modes of communication, particularly in person. There also was evidence of co-rumination stability and generalization over time for some modes of communication (within phone and from social media to in-person interactions), but not for others. Co-rumination through text and over the phone had affective and/ or social beneits, whereas co-rumination through social media predicted diminished positive affect. We also identiied ways these indings differed by gender. Conclusions: Implications for adolescents' emotional and social development and the ield of corumination are discussed.

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In contrast to traditional classifications of emotion regulation (ER) strategies as either uniformly maladaptive or adaptive, recent theoretical models emphasize that adaptability is determined by greater ER flexibility (i.e., the ability to flexibly implement and adjust ER strategies based on the context). This study is the first to empirically test the two central perspectives of ER flexibility on affect. A sample of 384 adults ( M age =38.58 years, SD =13.82) residing predominantly in North America completed daily diaries for 14 days. We found evidence that theoretical components of ER flexibility, as defined by greater context sensitivity in the selection of ER strategies, greater ER strategy repertoire, enhanced responsivity to affective feedback, and ER-environmental covariation, were associated with adaptive affective outcomes (i.e., reduced negative affect and/or increased positive affect). This study highlights the importance of examining ER flexibility and its consequences as a critical component of ER. Supplementary Information The online version contains supplementary material available at 10.1007/s42761-022-00132-7.

Introduction: The Perfectionism Social Disconnection Model (PSDM) posits that perfectionism confers risk for depression by promoting social disconnection. However, the specific indirect effect of social disconnection on the prospective relation of perfectionism dimensions with depression severity is not well understood. The aim of the current study was to provide the first comprehensive examination of the PSDM. Methods: A diverse community sample of 447 completed measures of trait perfectionism, perfectionistic self-presentation styles, and depressive symptoms at baseline. Six months later, participants completed measures of perfectionistic self-presentation styles, social disconnection, and depressive symptoms. Indirect effects models were analyzed to examine the impact of each facet of perfectionism on social disconnection and subsequent depression severity. Results: Consistent with the PSDM, all perfectionism traits and self-presentation styles resulted in greater depression severity via one or more facets of social disconnection, with social hopelessness and loneliness demonstrating the most widespread effects. Furthermore, perfectionistic self-presentation styles and social disconnection demonstrated sequential indirect effects on the relation of self-oriented and socially prescribed perfectionism with depressive symptoms at follow-up. Discussion: This study is the first to demonstrate the depressogenic effects of all perfectionism dimensions. Findings delineate the interpersonal mechanisms underlying the perfectionism-depression link.

The modified DBT group shows promise in alleviating symptoms of anxiety and some of the disruptive behaviours associated with BPD. The increase in emotional symptoms may be due to the expressive nature of DBT, and may contribute to their eventual therapeutic processing in the next step of the program.