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Rumination

Distribution by Scientific Domains

Psychology	58%
Medical Sciences	22%
Life Sciences	10%
Humanities and Social Sciences	4%
3 Other Domains	6%

Distribution within Psychology

Clinical Psychology	48%
Personality & Individual Differences	13%
5 Other Subdomains	26%

Selected Abstracts

Rumination in posttraumatic stress disorder

DEPRESSION AND ANXIETY, Issue 5 2007
Tanja Michael Ph.D.
Abstract Recent studies have shown that rumination is a powerful predictor of persistent posttraumatic stress disorder (PTSD). However, to date, the mechanisms by which rumination maintains PTSD symptoms are little understood. Two studies of assault survivors, a cross-sectional (N = 81) and a 6-month prospective longitudinal study (N = 73), examined several facets of ruminative thinking to establish which aspects of rumination provide the link to PTSD. The current investigation showed that rumination is not only used as a strategy to cope with intrusive memories but it also triggers such memories. Certain characteristics of rumination, such as compulsion to continue ruminating, occurrence of unproductive thoughts, and "why" and "what if" type questions, as well as negative emotions before and after rumination, were significantly associated with PTSD, concurrently and prospectively. These characteristics explained significantly more variance in PTSD severity than the mere presence of rumination, thereby indicating that not all ways of ruminative thinking are equally maladaptive. Depression and Anxiety 24:307,317, 2007. © 2006 Wiley-Liss, Inc. [source]

Rumination as a predictor of drinking behaviour in alcohol abusers: a prospective study

ADDICTION, Issue 6 2010
Gabriele Caselli
ABSTRACT Aims To investigate the role of depression and rumination in predicting drinking status (absence or presence of alcohol use) and level of alcohol use at 3, 6 and 12 months following a brief course of cognitive,behavioural therapy for alcohol abuse. Methods A total of 80 out-patients with a diagnosis of alcohol abuse completed measures of depression (Beck Depression Inventory), rumination (Ruminative Responses Scale) and alcohol use (Quantity,Frequency Scale). Results These indicated that rumination predicted drinking status and level of alcohol use at 3-, 6- and 12-month follow-up. The contribution of rumination was independent of depression and initial level of alcohol use. Conclusions The results confirm that rumination is an important prospective predictor of drinking status and level of alcohol use in alcohol abusers and highlight the potential relevance of targeting rumination in the treatment of alcohol abuse. [source]

Decomposing the construct of ambivalence over emotional expression in a Chinese cultural context

EUROPEAN JOURNAL OF PERSONALITY, Issue 3 2005
Sylvia Xiaohua Chen
The present study examined the construct of ambivalence over emotional expression proposed by King and Emmons (1990) in the Chinese context, and identified a factor structure different from those proposed in previous Western studies. The results of this study provided discriminant validity for this newly extracted two-factor structure of ambivalence, viz., Emotional Rumination and Emotional Suppression. Emotional Rumination was significantly predicted by the personality scales of introversion and inferiority, and the belief dimension of fate control, whereas Emotional Suppression was predicted by the personality scales of diversity, face, and harmony, and the belief dimension of social complexity. The different effects of Emotional Rumination and Emotional Suppression in predicting life satisfaction showed that emotional experience has its own specific characteristics in Chinese culture, and that responding to its emic characteristics will yield a more culturally responsive understanding of emotional experience and expression. Copyright © 2004 John Wiley & Sons, Ltd. [source]

The Anatomy of Anger: An Integrative Cognitive Model of Trait Anger and Reactive Aggression

JOURNAL OF PERSONALITY, Issue 1 2010
Benjamin M. Wilkowski
ABSTRACT This paper presents an integrative cognitive model, according to which individual differences in 3 cognitive processes jointly contribute to a person's level of trait anger and reactive aggression. An automatic tendency to attribute hostile traits to others is the first of these cognitive processes, and this process is proposed to be responsible for the more frequent elicitation of anger, particularly when hostile intent is ambiguous. Rumination on hostile thoughts is the second cognitive process proposed, which is likely to be responsible for prolonging and intensifying angry emotional states. The authors finally propose that low trait anger individuals use effortful control resources to self-regulate the influence of their hostile thoughts, whereas those high in trait anger do not. A particular emphasis of this review is implicit cognitive sources of evidence for the proposed mechanisms. The authors conclude with a discussion of important future directions, including how the proposed model can be further verified, broadened to take into account motivational factors, and applied to help understand anger-related social problems. [source]

Rumination: Relationship to depression and personality in a clinical sample

PERSONALITY AND MENTAL HEALTH, Issue 4 2009
Janet D. Carter
Numerous studies indicate rumination has a deleterious impact on the course of depressive symptoms. Very little is known about the factors that account for individual differences in the tendency to ruminate, particularly in clinical samples. The aim of this study was to examine the relationship between demographic factors, clinical characteristics of depression, personality and rumination in a clinical sample. Rumination was assessed with the Response Styles Questionnaire in 168 outpatients with a current diagnosis of major depression. Depression characteristics and personality were assessed with both structured clinical interviews and self-report measures. The results indicate that depression severity and personality predict rumination. Specifically, high initial depression severity, cluster B personality disorder symptoms and low self-directedness were significant predictors of rumination. There were no age or gender differences in the tendency to ruminate. Personality functioning appears to be an important dimension that may account for individual differences in the tendency to ruminate in depressed outpatients. Copyright © 2009 John Wiley & Sons, Ltd. [source]

Co,Rumination in the Friendships of Girls and Boys

CHILD DEVELOPMENT, Issue 6 2002
Amanda J. Rose
This research addresses a new construct, co,rumination. Co,rumination refers to extensively discussing and revisiting problems, speculating about problems, and focusing on negative feelings. Friendship research indicates that self,disclosure leads to close relationships; however, coping research indicates that dwelling on negative topics leads to emotional difficulties. Co,rumination is a single construct that integrates both perspectives and is proposed to be related both to positive friendship adjustment and problematic emotional adjustment. Third,, fifth,, seventh,, and ninth,grade participants (N= 608) responded to questionnaires, including a new measure of co,rumination. Co,rumination was related to high,quality, close friendships and aspects of depression and anxiety. Girls reported co,ruminating more than did boys, which helped to account for girls' more positive friendship adjustment and greater internalizing symptoms. Other analyses addressed whether co,rumination and the related constructs of self,disclosure and rumination had different relations with friendship and emotional adjustment. [source]

Ruminations on Financial Efficiency and Social Legitimacy

CORPORATE GOVERNANCE, Issue 1 2010
William Judge Editor-in-Chief
No abstract is available for this article. [source]

Effects of preoccupation on interpersonal recall: a pilot study

DEPRESSION AND ANXIETY, Issue 1 2009
Annukka Lehtonen Ph.D.
Abstract Background: The aim of this pilot study was to examine whether priming preoccupation (rumination) in healthy participants adversely affects the processing of interpersonal information. Methods: Sixty female undergraduates with moderate or marked preoccupation proneness (selected on the basis of their high preoccupation on eating, shape, and weight issues) were randomized to receive either a general preoccupation prime, a standardized preoccupation prime, or a control prime. Following the prime, participants watched an 8-min videotape of a family interaction and then were asked free recall questions about the tape. Results: Participants who received the general preoccupation prime scored lower than the other two groups in response to free recall questions regarding emotion-related topics. Conclusions: These findings suggest that when primed by everyday worries and concerns, individuals prone to preoccupation may have their capacity to recall emotion-related interpersonal information compromised. Depression and Anxiety, 2009. © 2008 Wiley-Liss, Inc. [source]

Negative appraisals and cognitive avoidance of intrusive memories in depression: a replication and extension

DEPRESSION AND ANXIETY, Issue 7 2008
Alishia D. Williams B.A. (Hons.)
Abstract Recent research has demonstrated that intrusive negative autobiographical memories represent a shared phenomenological feature of posttraumatic stress disorder (PTSD) and depression. A preliminary investigation (Starr and Moulds, 2006) successfully applied a cognitive appraisal model of PTSD to the maintenance of intrusive memories in depression. The current investigation sought to replicate and extend these findings. Two hundred and fifty first-year undergraduate students were interviewed to assess for the presence of a negative autobiographical memory that had spontaneously intruded in the past week. Participants completed self-report inventories assessing trait and situational employment of cognitive avoidance mechanisms in response to these memories. Consistent with Starr and Moulds, intrusion-related distress correlated with dysphoria, irrespective of intrusion frequency. Assigning negative appraisals to one's intrusive memory and attempts to control the memory were positively associated with intrusion-related distress, level of depression, and cognitive avoidance mechanisms. Additionally, negative appraisals and control influenced the employment rumination as an avoidant response to a greater degree than the corresponding trait tendency. Finally, negative appraisals and the use of cognitive mechanisms were predictive of depression concurrently. The results support the validity of borrowing from PTSD models to elucidate the cognitive mechanisms that maintain intrusive memories in depressed samples. Depression and Anxiety 0:1,8, 2007. © 2007 Wiley-Liss, Inc. [source]

Rumination in posttraumatic stress disorder

Ruminative coping among patients with dysthymia before and after pharmacotherapy

DEPRESSION AND ANXIETY, Issue 4 2007
Owen Kelly Ph.D.
Abstract The pivotal role of rumination in relation to other coping strategies was assessed in chronically depressed (dysthymic disorder) individuals versus nondepressed controls. Individuals with dysthymia demonstrated elevated use of rumination and other emotion-focused strategies (emotional expression, emotional containment, self- and other-blame). Among patients with dysthymia, rumination was linked to this limited array of emotion-focused efforts and diminished use of cognitive disengagement, whereas among controls, rumination was correlated with a broad constellation of problem- and emotion-focused strategies. Following 12 weeks of pharmacotherapy (sertraline), despite attenuation of depressed mood and reduced rumination, the limited relations between rumination and emotion-focused efforts persisted. Inflexibility in the ability to combine various coping efforts effectively may be characteristic of individuals with dysthymia, potentially increasing risk for recurrence. Depression and Anxiety 24:233,243, 2007. © 2006 Wiley-Liss, Inc. [source]

Rumination as a predictor of drinking behaviour in alcohol abusers: a prospective study

Social anxiety and anger regulation

EUROPEAN JOURNAL OF PERSONALITY, Issue 7 2004
Hannelore Weber
Based on the assumption that social anxiety is associated with less assertive behaviour and that effective anger regulation is influenced by social anxiety, two studies were conducted to examine the relationship between social anxiety and anger regulation. In Study 1, questionnaires measuring social anxiety, assertiveness, and six habitual anger-related responses were administered to 115 adults. Social anxiety had an independent effect on rumination and submission, whereas assertiveness was independently related to the use of humour and feedback. In Study 2 (N,=,136 adults) self- and observer ratings of anger-related behaviour were obtained after anger was experimentally induced. Social anxiety was related to self-ratings of submission and rumination. However, independent observer ratings based on videotapes revealed no significant influence of social anxiety on anger-related behaviour. Taken together, the results provide evidence that social anxiety is associated with the self-perception of less assertive behaviour and the tendency to evaluate one's behaviour more negatively. These results are consistent with prior studies showing that socially anxious persons tend to underestimate their social performance relative to the ratings of independent observers. Copyright © 2004 John Wiley & Sons, Ltd. [source]

Mood Adjustment to Social Situations Through Mass Media Use: How Men Ruminate and Women Dissipate Angry Moods

HUMAN COMMUNICATION RESEARCH, Issue 1 2006
Silvia Knobloch-Westerwick
Mood adjustment goals served to explain gender differences regarding media preferences. Before reacting to antagonism, females are likely to prevent aggression by dissolving aversive states through media consumption, whereas males could preserve aggression by choosing negative content. In a computerized procedure, participants (N = 86) were provoked by supervisor feedback to instigate angry moods. Half of the sample was led to anticipate a retaliation opportunity. In a purportedly separate study, participants were free to choose from online news while software unobtrusively logged their selective news exposure. The articles had been classified as positive or negative news in a pretest. When anticipating a retaliation opportunity, females spent more time reading positive news to dissipate their anger. Males expecting a retaliation opportunity spent more time on negative news to sustain their anger. Males' generally lower news consumption, especially when anticipating a chance to retaliate, indicated anger rumination through news avoidance altogether. [source]

Persistence of Traumatic Memories in World War II Prisoners of War

JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 12 2009
(See editorial comments by Dr. Jules Rosen, 2347), on pp 234
OBJECTIVES: To assess the long-term effects of the prisoner of war (POW) experience on U.S. World War II (WWII) veterans. DESIGN: Exploratory study. SETTING: Participants were recruited through the Hines Veterans Affairs Hospital; a POW reunion in Orlando, Florida; and the WWII veterans periodical, "The QUAN." PARTICIPANTS: One hundred fifty-seven American military veterans who were former WWII POWs. MEASURMENTS: Participants completed a mailed survey describing their POW experiences, POW effects on subsequent psychological and physical well-being, and ways in which these experiences shaped major decisions in their lives. RESULTS: Participants from the European and Pacific theaters reported that their captivity during WWII affected their long-term emotional well-being. Both groups reported high rates of reflection, dreaming, and flashbacks pertaining to their POW experiences, but Pacific theater POWs did so at higher rates in the present than in the past. Large portions of both groups reported greater rumination on POW experiences after retirement. Finally, 16.6% of participants met the requirements of a current, clinical diagnosis of posttraumatic stress disorder (PTSD) based on the Mississippi PTSD scale, with PTSD rates in Pacific theater POWs (34%) three times those of European theater POWs (12%). CONCLUSION: Traumatic memories and clinical levels of PTSD persist for WWII POWs as long as 65 years after their captivity. Additionally, rumination about these experiences, including flashbacks and persistent nightmares, may increase after retirement, particularly for those held in the Pacific theater. These findings inform the current therapeutic needs of this elderly population and future generations of POWs from other military conflicts. [source]

Age-associated plasticity in the intrinsic innervation of the ovine rumen

JOURNAL OF ANATOMY, Issue 3 2003
Helga Pfannkuche
Abstract The rumen of adult sheep functions as a large fermentation chamber. In the newborn suckling ruminant, the rumen is bypassed and milk enters the abomasum directly. It was the aim of our study to investigate whether the transmitter content of intrinsic nerves changes with the developmental stage. The neurochemical code of myenteric neurons in the rumen from suckling lambs, fattened lambs and adult sheep was determined by using quadruple immunohistochemistry against choline-acetyltransferase (ChAT), nitric oxide synthase (NOS), substance P (SP) and vasoactive intestinal peptide (VIP). Three neurochemically distinct subpopulations were identified within the rumen. They expressed the code ChAT/,, ChAT/SP and NOS/VIP. The number of ChAT/SP neurons did not change during development. It was 62% in the newborn lamb and remained stable in fattened lambs (63%) and adult sheep (63%). By contrast, the number of ChAT/, neurons decreased significantly from 20% in suckling lambs to 11% and 7% in fattened lambs and adult sheep, respectively. Simultaneously, the proportion of NOS/VIP neurons increased from 16% in suckling lambs to 29% in adult sheep. The increase in the proportion of NOS/VIP immunoreactive neurons indicates an adaptation to large volumes of ingesta at the beginning of roughage intake and rumination. We conclude that the age-associated changes in neurochemical code of myenteric neurons in the forestomach are related to the adaption of the rumen to different functional properties during development. [source]

The assessment of the frequency of chews during rumination enables an estimation of rumination activity in hay-fed sheep

JOURNAL OF ANIMAL PHYSIOLOGY AND NUTRITION, Issue 3-4 2002
M. KASKE
The objective was to assess rumination behaviour and, more specifically, the intra-individual and inter-individual variation of the frequency of chews during rumination (per min) in five Blackhead sheep fed hay at a level of 100% maintenance (experimental period [EP] I), 50% maintenance (EP II) and ad libitum (EP III). Animals ruminated in EP II less (416 min/day) than in EP I and III (558 and 592 min/day, respectively). Mean inter-individual coefficents of variation (CV) of frequency (defined as number of chews/duration of chewing per cycle) were 12.5%, mean intra-individual CV were 2.5%. The respective CVs for the duration of rumination per day were 8.1 and 9.7%, respectively. The level of intake influenced the frequency of chews significantly. It is concluded that the frequency of chews has to be considered in studies investigating chewing behaviour of ruminants. Under the experimental conditions investigated, number of chews during rumination per day could be estimated by the frequency of chewing with nearly the same precision as by using the duration of rumination per day. [source]

Why are very large herbivores absent from Australia?

JOURNAL OF BIOGEOGRAPHY, Issue 4 2000
A new theory of micronutrients
Abstract Aim We propose a Megacatalyst Theory, based on the pivotal role of the micronutrients iodine (I), cobalt (Co) and selenium (Se), in answer to the body size anomaly of herbivores on different continents, and the previously unexplained absence of megaherbivores in certain environments. Location It is anomalous that megaherbivores are absent from Australia while present in even dry and nutrient-poor parts of southern Africa, and that they have been exterminated from the Americas, but not south-east Asia. Methods We hypothesize that I, Co and Se are micronutrients in quantity, but megacatalysts in effect, determining maximum body size and pace of life, hence whether energy is used by animals or fire. The Megacatalyst Theory suggests that the greater the reproductive rate and brain size relative to body size, the greater the probable demand for I, Co and Se. Results Balanced supply of I, Co and Se, within narrow tolerances, is elusive because of disparate cycles: I gravitates towards the sea, whereas Co and Se are concentrated in ultramafics and organic shales, respectively. Sufficiency of these micronutrients, at less than toxic concentrations, is vital for rapid metabolism and growth, particularly of the nervous system. Iodine controls thermogenesis, Co controls the gut fermentation supplying herbivores, and Se controls biochemical damage where both processes occur rapidly. The supply of Co allows vegetation to be metabolized instead of combusted, by promoting digestion of fibre by gut microbes. Herbivores demand I, Co and Se in greater concentrations than palatable plants necessarily contain, as an increasing proportion of energy is fermented from fibre with increasing body size. Economy of scale is limited by loss of I in urine (partly compensated by thyroid size), Co in faeces (partly compensated by gut compartments), and Se both ways. Main conclusions The larger the herbivore species, the more it may depend on supplementation in order to survive predation by humans. As body mass increases, Co becomes deficient before I, because it is essential for rumination, and cannot be absorbed by the skin. Moderate uplift of a fairly flat landscape sustainably supplies I from mineralized springs, and Co from rocks (and Se from both), avoiding the excess of I in the sea and the excess of Co on high mountains. Iodine and Se leached to groundwater under dry climates are inaccessible to herbivores on a continent as flat as Australia, where even kangaroos have limited fecundity and intelligence compared to southern African ruminants of similar body mass. Where springs and associated earth-licks were available in the late Pleistocene, megaherbivores could evolve to survive the era of domestication. [source]

Rumination fosters indecision in dysphoria,

JOURNAL OF CLINICAL PSYCHOLOGY, Issue 3 2010
Annette van Randenborgh
Abstract This study investigated the effects of rumination on indecision, assessed as high levels of perceived decision difficulty, low confidence in a decision, and decision latency. Dysphoric and nondysphoric participants were assigned to either a rumination or a distraction induction. Subsequently, they made four decisions with alleged real-life consequences. As predicted, rumination exhibited a negative effect on dysphoric participants' decision-making process. They experienced the decisions as more difficult and had less confidence in their choices. No effects emerged on the measure of decision time. Mediation analyses revealed that increased difficulty of the decisions was due to self-focused thinking as a cognitive consequence of rumination, while reduced confidence in the decisions was partly mediated by negative affect that resulted from rumination. The finding that rumination affects the important life domain of decision making by fostering indecision in dysphoric individuals is a central extension of previous studies on rumination's consequences. In addition, these results provide insight into the depressive symptom of indecisiveness by revealing its underlying mechanisms. © 2009 Wiley Periodicals, Inc. J Clin Psychol 66: 229,248, 2010. [source]

Cultivating mindfulness: effects on well-being

JOURNAL OF CLINICAL PSYCHOLOGY, Issue 7 2008
Shauna L. Shapiro
Abstract There has been great interest in determining if mindfulness can be cultivated and if this cultivation leads to well-being. The current study offers preliminary evidence that at least one aspect of mindfulness, measured by the Mindful Attention and Awareness Scale (MAAS; K. W. Brown & R. M. Ryan, 2003), can be cultivated and does mediate positive outcomes. Further, adherence to the practices taught during the meditation-based interventions predicted positive outcomes. College undergraduates were randomly allocated between training in two distinct meditation-based interventions, Mindfulness Based Stress Reduction (MBSR; J. Kabat-Zinn, 1990; n=15) and E. Easwaran's (1978/1991) Eight Point Program (EPP; n=14), or a waitlist control (n=15). Pretest, posttest, and 8-week follow-up data were gathered on self-report outcome measures. Compared to controls, participants in both treatment groups (n=29) demonstrated increases in mindfulness at 8-week follow-up. Further, increases in mindfulness mediated reductions in perceived stress and rumination. These results suggest that distinct meditation-based practices can increase mindfulness as measured by the MAAS, which may partly mediate benefits. Implications and future directions are discussed. © 2008 Wiley Periodicals, Inc. J Clin Psychol 64: 1,23, 2008. [source]

Could mindfulness decrease anger, hostility, and aggression by decreasing rumination?

AGGRESSIVE BEHAVIOR, Issue 1 2010
Ashley Borders
Abstract Research suggests that rumination increases anger and aggression. Mindfulness, or present-focused and intentional awareness, may counteract rumination. Using structural equation modeling, we examined the relations between mindfulness, rumination, and aggression. In a pair of studies, we found a pattern of correlations consistent with rumination partially mediating a causal link between mindfulness and hostility, anger, and verbal aggression. The pattern was not consistent with rumination mediating the association between mindfulness and physical aggression. Although it is impossible with the current nonexperimental data to test causal mediation, these correlations support the idea that mindfulness could reduce rumination, which in turn could reduce aggression. These results suggest that longitudinal work and experimental manipulations mindfulness would be worthwhile approaches for further study of rumination and aggression. We discuss possible implications of these results. Aggr. Behav. 36:28,44, 2010. © 2009 Wiley-Liss, Inc. [source]

Eating disorders in adults with intellectual disability

JOURNAL OF INTELLECTUAL DISABILITY RESEARCH, Issue 6 2000
S. Gravestock
Abstract There is an increasing focus on the nutrition of people with intellectual disability (ID), but less interest in the range of eating disorders (EDs) that they may exhibit and the bio-psycho-social impact of these conditions. Despite diagnostic and methodological difficulties, psychopathology and ED research studies suggest that 3,42% of institutionalized adults with ID and 1,19% of adults with ID in the community have diagnosable EDs. Weight surveys indicate that 2,35% of adults with ID are obese and 5,43% are significantly underweight, but the contribution of diagnosable EDs is unknown. Such data and case reports suggest that EDs are associated with considerable physical, behavioural, psychiatric and social comorbidity. Review papers have focused on the aetiology and treatment of pica, rumination, regurgitation, psychogenic vomiting and food faddiness/refusal. Emerging clinical issues are the development of appropriate diagnostic criteria, multimodal assessment and clinically effective treatment approaches. Key service issues include staff training to improve awareness, addressing comorbidity and access issues, and maintaining support for adults with ID and EDs, and their carers. Research should confirm the multifaceted aetiology and comorbidity of EDs. Then multicomponent assessment and treatment models for EDs can be developed and evaluated. [source]

Self-Pity: Exploring the Links to Personality, Control Beliefs, and Anger

JOURNAL OF PERSONALITY, Issue 2 2003
Joachim Stöber
Self-pity is a frequent response to stressful events. So far, however, empirical research has paid only scant attention to this subject. The present article aims at exploring personality characteristics associated with individual differences in feeling sorry for oneself. Two studies with N=141 and N=161 university students were conducted, employing multidimensional measures of personality, control beliefs, anger, loneliness, and adult attachment. With respect to personality, results showed strong associations of self-pity with neuroticism, particularly with the depression facet. With respect to control beliefs, individuals high in self-pity showed generalized externality beliefs, seeing themselves as controlled by both chance and powerful others. With respect to anger expression, self-pity was primarily related to anger-in. Strong connections with anger rumination were also found. Furthermore, individuals high in self-pity reported emotional loneliness and ambivalent-worrisome attachments. Finally, in both studies, a strong correlation with gender was found, with women reporting more self-pity reactions to stress than men. Findings are discussed with respect to how they support, extend, and qualify the previous literature on self-pity, and directions for future empirical research are pointed out. There are a hundred ways to overcome an obstacle and one sure way not to,self-pity. Dale Dauten, columnist [source]

In vitro degradation of forage chicory (Cichorium intybus L.) by endopoly- galacturonase

JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, Issue 15 2007
Xuezhao Sun
Abstract BACKGROUND: Leaves of forage chicory break down rapidly in the rumen despite little or no rumination. Because chicory cell walls contain high concentrations of pectin, degradation of leaf midrib and leaf lamina tissues by pectinolytic enzymes was investigated. RESULTS: Treatment with endopolygalacturonase (endo-PG) degraded fresh intact chicory leaves to particles of less than 1 mm in length and solubilised more than 70% of the dry matter within 16 h. Uronic acids were released more extensively than neutral monosaccharides. In similar treatments, 77% of white clover leaflets and 12% of perennial ryegrass leaf blades were solubilised or broken down to particles with a size of less than 1 mm. The degradation of pectic polysaccharides in chicory midribs was monitored by immunofluorescence labelling with monoclonal antibodies JIM5 and JIM7 which target partially methyl-esterified epitopes of the homogalacturonan (HG) domain of pectin. Examination by fluorescence microscopy revealed that cell separation in the cortical parenchyma of chicory midrib following endo-PG treatment was associated with loss of HG from the middle lamella, the corners of intercellular spaces and from the tricellular junctions. CONCLUSION: The results of the current study suggest that one of the main contributions to chicory breakdown in the rumen may be cell separation caused by degradation of HG by pectinolytic enzymes from rumen bacteria. Copyright © 2007 Society of Chemical Industry [source]

When thinking hurts: Attachment, rumination, and postrelationship adjustment

PERSONAL RELATIONSHIPS, Issue 3 2007
COLLEEN SAFFREY
The current study used an attachment framework to explore postrelationship rumination and adjustment. Young adults (N= 231) involved in a romantic relationship that (a) was of 3 months duration or longer and (b) ended in the last 12 months participated in the study. The study assessed rumination generally (brooding, regret, and reflection), and specifically concerning the ended relationship (relationship preoccupation and romantic regret). At the general level, brooding and regret were associated with more negative adjustment, whereas reflection was associated with more positive adjustment. At the relationship level, both relationship preoccupation and romantic regret were associated with more negative adjustment. Models tested indicated that rumination largely mediated the association between attachment anxiety and adjustment. [source]

Rumination: Relationship to depression and personality in a clinical sample

Intrusive cognitions and their appraisal in anxious cancer patients

PSYCHO-ONCOLOGY, Issue 11 2009
Katriina L. Whitaker
Abstract Objective: Previous research found that anxious cancer patients experience uncontrollable negative intrusive cognitions that have an impact on coping and are associated with significant psychological distress. This is the first study to examine the appraisal of intrusive cognitions in an anxious group of cancer patients. Methods: A sample of 139 anxious cancer patients was assessed for evidence of intrusive phenomena, including memories, images and thoughts. Patients completed the Response to Intrusions Questionnaire and the Impact of Event Scale in relation to intrusive cognitions. Results: Forty-eight percent (67/139) reported frequent, uncontrollable intrusive cognitions. Intrusive thoughts and images were equally as common and images were associated with increased distress and uncontrollability. A significant positive linear relationship was found between the number of intrusions and anxiety severity (P<0.05). Negative appraisal of intrusive cognitions was associated with anxiety (P<0.01) and depression severity (P<0.01), intrusion-specific distress (P<0.01), rumination (P<0.01) and cognitive avoidance (P<0.01), after controlling for intrusion frequency. Conclusion: Negative appraisal of intrusive cognitions plays a significant role in psychological distress and intrusion-specific distress in anxious cancer patients. Finding similarities in the types of intrusive cognitions reported by cancer patients and other anxious populations highlights the potential applicability of psychological therapies developed to reduce the frequency and impact of intrusive cognitions. Copyright © 2009 John Wiley & Sons, Ltd. [source]

Eating and rumination behaviour in Brahman grade cattle and crossbred water buffalo fed on high roughage diet

ANIMAL SCIENCE JOURNAL, Issue 5 2010
Renato S. A. VEGA
ABSTRACT The purpose of this study is to compare feeding and other behavior and nutrient digestibility of tropical grade Brahman (body weight (BW) = 231 kg ± 12.4; n = 3) and crossbred water buffalo (BW = 300 kg ± 13.9; n = 3). This experiment on digestibility and measures of muscles of mastication utilized one-way, and animal behavior two-way, analysis of variance, respectively. Two video camcorders were installed in each pair of buffalo and Brahman for 24 h period programmed on the 107th, 109th and 111th days of the digestion trials. Frequency and duration of feeding, meal intake, rumination, bolus, chews, drinking, defecating, standing and lying were recorded daily. Muscle diameter of Digastricus, Masseter and Pterygoid and different regions of the tongue were sampled and measured under light microscope using a standard micrometer. Buffalo obtained significantly higher intake of dry matter, roughage, crude protein, total digestible nutrient and metabolized energy than Brahman. This was supported by longer meal duration (P , 0.05), and shorter meal breaks (P , 0.05) of buffalo than Brahman. The diameter of the muscles for mastication was bigger (P , 0.05) in buffalo than in Brahman, which is indicative of stronger chewing ability. Briefly, lesser and slower chewing action; higher intake of roughage and crude protein; and longer resting behavior of crossbred water buffalo than Brahman are all indicative of better digestive and metabolic performance of the buffalo under high roughage feeding conditions. [source]

Effect of weaning on behavior and serum parameters in dairy goat kids

ANIMAL SCIENCE JOURNAL, Issue 4 2008
Cengiz ATASOGLU
ABSTRACT This study aimed at investigating the effects of weaning kids abruptly at an average of 55 ± 13 days of age on intake, behavioral and serum parameters and, lasted for a total of six weeks; two weeks pre-weaning and four weeks post-weaning. Sixteen single kids with equal gender were used. Kids were only allowed to stay with their mothers for suckling (45 min/period) both in the morning and in the evening period during pre-weaning. Grower concentrate and hay were offered ad libitum. The duration of the study was divided into three periods for the sampling of behavioral and serum parameters; (i) pre-weaning period lasting for two weeks (P-BW) (ii) early post-weaning period lasting for one week (P-AW1) and (iii) late post-weaning period lasting for three weeks (P-AW2). Daily weight gain of kids gradually decreased as the observation period progressed (P = 0.001). However concentrate feed intake increased from 0.154 kg/day in P-BW to 0.479 kg/day in P-AW1 and 0.499 kg/day in P-AW2. Water intake, rumination and standing behaviors decreased in P-AW2 (P < 0.001), whereas activity towards concentrate feed (CF) (P < 0.001) and roughage (P = 0.012) increased as compared to P-BW and P-AW1. Abnormal oral activity was not affected by the periods (P = 0.906). CF was significantly higher in females (P = 0.003), whereas males displayed higher lying behavior (P = 0.007). Glucose, total protein, urea, cholesterol, HDL-cholesterol, LDL-cholesterol concentrations (P = 0.001) and ALP activity (P = 0.003) were significantly affected by the periods. The results of the present study suggest that behavioral and serum parameters across the periods describe changes in the nutritional conditions as a result of the transition from milk to solid feed in association with weaning. [source]

Metacognitive beliefs increase vulnerability to rumination

APPLIED COGNITIVE PSYCHOLOGY, Issue 3 2010
Michelle L. Moulds
Metacognitive beliefs about the benefits of rumination are associated with rumination and depression; however, the direction of these relationships remains unclear. Two experiments examined whether individuals with high positive beliefs about rumination engaged in more rumination following a laboratory-based stressor than individuals with low levels of such beliefs. In Study 1, participants with high levels of positive beliefs reported more rumination following receipt of negative feedback on a forced-failure anagram task. In Study 2, participants with high levels of positive beliefs reported more rumination compared to participants with low levels of positive beliefs, regardless of whether they received negative feedback, positive feedback or no feedback on their performance. Our findings demonstrate the importance of positive beliefs about rumination, and highlight the utility of treatment approaches that aim to reduce rumination by targeting such unhelpful metacognitive beliefs. Copyright © 2010 John Wiley & Sons, Ltd. [source]