The high rate of comorbidity among mental disorders has driven a search for factors associated with the development of multiple types of psychopathology, referred to as transdiagnostic factors. Rumination is involved in the etiology and maintenance of major depression, and recent evidence implicates rumination in the development of anxiety. The extent to which rumination is a transdiagnostic fa...

Prior research suggests that rumination and chronic negative emotions serve to maintain emotional disorders. However, some evidence suggests that pondering the nature and meaning of negative experiences can be adaptive. To better understand the function of this dimension of rumination, we studied the use of this strategy in response to negative emotions as they unfold from day to day in veteran...

In order to examine how rumination and social problem solving intensify depression, the present study investigated longitudinal associations among each dimension of rumination and social problem solving and evaluated aspects of these constructs that predicted subsequent depression. A three-wave longitudinal study, with an interval of 4 weeks between waves, was conducted. Japanese university stu...

Rumination involves repeatedly and passively dwelling on negative feelings and brooding about their causes and consequences. Prior work has found that rumination predicts many forms of psychopathology including anxiety, binge eating, binge drinking, self-injury, and especially depression (Nolen-Hoeksema, Wisco, & Lyubomirsky, 2008 ). In the present study, we attempt to characterize the ruminati...

Rumination in adults is considered to be the effortless regurgitation of recently ingested food into the mouth, followed by either rechewing and reswallowing or expulsion of the regurgitate. On the basis of the definition of rumination as a unique category of functional gastroduodenal disorders, according to the newly established Rome III classification, a review of the pathophysiology, diagnos...

Anticipatory processing (AP) is a repetitive negative thinking (RNT) style associated with social anxiety that has been excluded in studies of repetitive thought (e.g., worry and rumination). The following studies examined whether individual differences in AP were associated with social anxiety symptoms above and beyond worry and rumination in undergraduate samples. Study 1 (N = 326) examined t...

Extensive studies have been conducted on the rumination behavior of domestic herbivores. However, studies on wild animals are limited, particularly wild animals with specific ruminating parameters. In this study, Père David's deer, a previously extirpated species, was observed to analyze the effects of sex-age, feeding habitat, and rainfall on rumination behavior in the Dafeng Nature Reserve, C...

Early identification of sick cattle increases treatment success and decreases mortality. Continuous automated records of behavior can be used to identify sick cattle early in the disease process. The objective was to evaluate accuracy of an ear-attached accelerometer (SensOor) that quantified ear movements and estimated feeding and rumination time through a proprietary algorithm. Accelerometers...

The tendency to co-ruminate, or frequently discuss and rehash problems with peers, may serve as one mechanism in the dramatic rise in depression observed during adolescence, particularly among adolescent girls. In the current study, our goal was (a) to test the hypothesis that adolescents' levels of co-rumination would predict the onset of clinically significant depressive episodes over a 2-yea...

BACKGROUND A recent meta-analysis of many magnetic resonance imaging (MRI) studies has identified brain regions with gray matter (GM) abnormalities in patients with major depressive disorder (MDD). A few studies addressing GM abnormalities in patients with treatment-resistant depression (TRD) have yielded inconsistent results. Moreover, although TRD patients tend to exhibit ruminative thoughts,...