Browsing by Subject "Rumination"
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Item The benefits of expressive writing on overgeneral memory and depressive symptoms(2009-12) Maestas, Kacey Little; Rude, Stephanie SandraTwo decades of research suggest that a non-specific style of autobiographical memory retrieval–known as overgeneral memory–may be a cognitive style that increases depression vulnerability. Recent theorizing and empirical evidence suggest the mechanisms underlying overgeneral memory include rumination and avoidance. This study provided a preliminary investigation of the effectiveness of an expressive writing intervention, which has been found to reduce rumination and avoidance, in reducing overgeneral memory, with the ultimate goal of preventing future depressive symptoms among non-depressed college students. Two hundred and seven non-depressed college students completed the expressive writing intervention, in addition to a one-month and six month follow-up assessment. Participants were randomized one of three writing conditions: traditional expressive writing, specific expressive writing, or control writing. Participants in the traditional and specific expressive writing conditions were instructed to write about their deepest thoughts and feelings about an emotional event; the specific expressive writing condition contained the additional instruction that participants describe the events in a vivid and detailed manner. Participants in the control condition were instructed to write about a neutral topic (i.e., time management). All groups wrote for 20 minutes on three consecutive days. Study results showed that compared to participants in the control writing condition, participants in the traditional and specific expressive writing conditions demonstrated significantly greater autobiographical memory specificity at the six-month follow-up, but not at the one-month follow-up. Furthermore, the observed increase in autobiographical memory specificity for the expressive writing conditions could not be attributed to change in depressive symptoms over the same time interval. Results revealed that the effect of the traditional expressive writing intervention on increased autobiographical memory specificity was partially mediated by a reduction in avoidance assessed at the one-month follow-up. The hypothesis that rumination would partially mediate the effect of the expressive writing intervention on increased autobiographical memory specificity was not supported. Despite preliminary evidence that an expressive writing intervention compared to a control wiring condition is effective in increasing autobiographical memory specificity over a six-month period for initially non-depressed college students, it remains to be seen if increased autobiographical memory specificity decreases vulnerability to future depressive symptoms.Item Elaborative processing biases associated with vulnerability and maintenance of depression : evidence across levels of analysis(2014-08) Clasen, Peter Cunningham; Beevers, Christopher G.Major depressive disorder (MDD) will soon represent the most costly and debilitating disorder in the world. Yet, a clear model of the mechanisms underlying MDD remains elusive. This lack of clarity obscures efforts to prevent and treat MDD more effectively. This dissertation seeks to advance an integrated model of the mechanisms underlying MDD across cognitive, neural, and genetic levels of analysis. Building on the empirical foundation of cognitive theories of MDD, the dissertation includes three studies that help address questions about the cognitive mechanisms underlying depression vulnerability and maintenance. Specifically, the three studies focus on identifying 1) how elaborative processing biases, including attentional biases and rumination, give rise to specific symptoms of MDD and 2) elucidating biological mechanisms that may give rise to these biases. Together, these studies help advance an integrated model of MDD that, ultimately, may help facilitate the prevention and treatment of this costly and debilitating disorder.Item Reducing rumination through exploring abstract values(2013-08) Mazzetti, Francesco; Rude, Stephanie SandraCurrent research proposes that rumination, perseverating on thoughts about one's feelings and problems, predicts the severity, likelihood, and duration of depression (Nolen-Hoeksema, 2000; Spasojevic & Alloy, 2001). One factor that might affect rumination outcomes is the level of abstraction one adopts when thinking about negative experiences. A growing body of research demonstrates that adopting a non-abstract, concrete perspective (e.g., focusing on specific details and sensations) reduces rumination (e.g., Watkins, Baeyens, & Read, 2009). Additionally, some empirical evidence suggests that abstract thinking (e.g., focusing on values, meaning, and general concepts) increases rumination when focusing on negative content (e.g., Watkins, 2004). In contrast, other experimental studies suggest that there are types of abstract processing that reduce rumination (Kross & Ayduk 2008; Rude, Mazzetti, Pal, & Stauble, 2011). This study built on the research supporting positive effects of abstract processing. The primary aim of this study was to determine if there are types of abstract processing that, when used in conjunction with concrete processing, can reduce rumination and can do so to a greater extent than concrete processing alone. Participants were asked to examine negative experiences that were particularly bothersome and write about them from one of three perspectives: a) a mixed condition that encouraged participants to explore their abstract values and connect them to concrete thoughts and actions; b) a concrete condition that encouraged thinking only about concrete thoughts and actions; and c) a control condition that directed participants to write about their daily routines. A sample of 252 college students completed measures of rumination, OGM, and depression at pre-intervention, post-intervention, and a two week follow-up. Results indicated that the treatment effects significantly interacted with initial depression, such that participants who had high initial levels of depression had significantly lower rumination and depression in the mixed and concrete conditions compared to the control condition following the intervention. Findings suggest that treatment differences in depression were meditated by changes in rumination. The limitations and implications of the results are discussed in the context of the current literature.Item Why dichotomize? : the combined effects of abstract and concrete processing on rumination(2010-12) Mazzetti, Francesco; Rude, Stephanie Sandra; Sherry, Alissa R.This report examines the affects of different types of thinking on rumination. Because of the relationship between rumination and psychopathology, many researchers have attempted to understand what types of processing end the ruminative cycle. Some researchers have proposed that thinking concretely (i.e. the specific details of events) will end rumination. These same researchers argue that thinking about events from an abstract perspective (general meaning of an event) is detrimental. However, several recent studies have shown that abstract processing under certain conditions can be beneficial. Though both sides of the debate discuss abstract and concrete as existing within a hierarchy, research to date has only treated these levels dichotomously. Adopting a Goal Progress Theory perspective, this report proposed a study that asks participants to traverse through multiple level of the construal hierarchy, and argues for the benefits of combining both abstract and concrete processing.