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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

EEG study on the differences between lean and obese individuals during regulation of food desire

Kumar, Saurabh 21 November 2017 (has links)
No description available.
52

Facial expressions and Electrophysiological impressions : An LPP study of emotional regulation

Ekvall, Viveka January 2019 (has links)
The conceptual model of emotion regulation (ER) of Gross and Thompson (2007) introduces families of ER strategies ordered on a temporal scale. This scale has been attributed implications both for the grouping strategies but also for the neurocognitive processing. The two event-related potential (ERP) studies of emotional regulation presented here focus on emotional regulation at different temporal distances, as well as, different stages of cognitive processing. Trying to discern if various neural processes could be disentangled by looking at different stages of the late positive potential (LPP). The theoretical background begins with the neurocognitive science of emotionality and visits cognitive processing at both early and late stages before summating results of the contemporary research of emotional regulation. 39 participants were enrolled within the two experiments aiming to compare the efficiency of different strategies in reducing negative social emotion induced by photographs of angry faces. Technical difficulties discourage conclusions about how temporal distancing is most effectively adapted. Results suggest self-focused distancing strategies are more effective than situation-focused reappraisal and could be preferred for therapeutic purposes based on greater observed LPP effect.
53

Étude des rythmes cérébraux dans la régulation émotionnelle à l’aide d’un électroencéphalogramme quantitatif

Zouaoui, Inès 08 1900 (has links)
Contexte : La régulation émotionnelle est un ensemble de processus responsables du contrôle, de l’évaluation et de l’ajustement des émotions dans un objectif. Les résultats d’imagerie fonctionnelle s’accordent sur l’implication des structures frontales et limbiques tandis que les résultats en neurophysiologie, encore rares, suggèrent un rôle du rythme alpha dans l’induction émotionnelle et du rythme thêta dans la régulation. Objectifs et hypothèses : Notre objectif était d’étudier le rythme thêta et alpha pendant la réévaluation de stimuli déplaisants. Nous avons émis l’hypothèse que l’activité alpha serait modulée lors de l’induction émotionnelle seulement tandis que l’activité thêta préfrontale serait positivement corrélée à une régulation réussie. Méthode : Vingt-quatre participants sains ont été enregistrés avec 64 électrodes EEG alors qu’ils regardaient passivement ou réévaluaient des images négatives et neutres. Les rythmes thêta et alpha ont été comparés lors de l’induction émotionnelle puis dans les conditions de maintien, de diminution et d’augmentation de l’émotion, et une localisation de la source a estimé les générateurs. Résultats : Le rythme alpha était non sensible à l’induction et à la régulation. L’activité thêta était systématiquement plus élevée dans la condition de régulation à la hausse que dans la condition de maintien (p=.04) principalement au début de la régulation (1-3 sec) pour thêta bas et plus tard (5-7 sec) pour le thêta haut avec comme générateur du thêta bas le gyrus frontal moyen et le cortex cingulaire antérieur dorsal. Conclusion : Le rythme thêta était impliqué dans les processus de réévaluation à la hausse de l’émotion. / Context: Emotion regulation is a set of processes responsible for controlling, evaluating and adjusting reactions to achieve a goal. Results derived from magnetic resonance imaging agreed on the involvement of frontal and limbic structures in this process. Findings using cognition and physiology interactions are still scarce but suggest a role for alpha rhythm in emotional induction and theta in regulation. Objectives and hypotheses: Our goal was to investigate theta and alpha rhythm during the reappraisal of aversive stimuli. We hypothesized that an implication of alpha rhythm in emotional induction only and an increase in prefrontal theta rhythm positively correlated with successful regulation. Method: Twenty-four healthy participants were recorded with 64 EEG electrodes while asked to passively watch or reappraise negative pictures. Theta and alpha rhythms were compared across maintain, decrease and increase regulation conditions, and a source localization estimated the generators. Results: Theta activity was consistently higher in the upregulation than in the maintenance condition (p=.04) for the entire control period, but mainly at the beginning of regulation (1-3 sec) for low-theta and later (5-7 sec) for high-theta. Moreover, our results confirm that a low-theta generator correlated with mainly the middle frontal gyrus and the dorsal anterior cingulate cortex during upregulation. Theta was sensitive to emotion upregulation, whereas the alpha oscillation was non-sensitive to emotion induction and regulation. Conclusion: The low-theta rhythm was involved explicitly in emotion upregulation processes that occur at a definite time during reappraisal, whereas the alpha rhythm was not altered by emotion induction and regulation.
54

Maternal Emotion Regulation as a Moderator of Relation of Parenting Stress to Dyadic Interaction in Mother-Child Dyads during Preschool

Atanasio, Meredith 01 December 2021 (has links)
Parenting stress has been closely studied largely in relation to implications for the parent and implications for children. Emotion regulation refers to the processes in which one interprets and experiences emotions. Little has been done examining how parenting stress and mother emotion regulation relates to dyadic interaction between mother and child. Because of the compounding nature of stress as identified in the ABCX model of family stress and resilience theory, understanding parenting stress in its entirety and how mothers experience and deal with said parenting stress is crucial to understanding family processes, as it is not possible to partition the mother and child into separate spheres, per family systems theory. Maternal parenting behaviors cannot be conceptualized in isolation of the mother-child dyad; therefore, it is important to understand maternal processes and behaviors that relate to parenting and also the dyad. The current study examined the moderating impact of maternal emotion regulation on the relation between maternal parenting stress and three facets of dyadic interaction, including conflict, cooperation, and reciprocity. Mothers and their 4-5.5-year-old children (n=116) participated in a teaching task wherein mothers instructed their child to build figures with interlocking blocks based on provided images. Six hypotheses were examined. Regression analyses revealed that neither maternal cognitive reappraisal nor maternal emotion suppression moderated the relation of total parenting stress to parent-child dyadic interaction. However, preliminary correlation analyses revealed that dyads with boys experienced higher scores of dyadic conflict. Boys in the sample were also younger than girls. Considerations for lack of significant findings are explored including the role of maternal characteristics, child characteristics, and goodness-of-fit. Future exploration is necessary to examine how parent characteristics like maternal emotion regulation and parenting stress may relate to dyadic interactions with children. / M.S. / Most of the research on parenting stress, which is the stress that parents may feel related to their roles as parents, examines how it is related to parenting behavior or directly to their children’s behavior. There is little research on how parenting stress and maternal emotion regulation, which how mothers control their emotions, relate to dyadic interactions between mothers and children. Theories of family stress suggest that stress builds over time; therefore, it is important to understand all aspects of parenting stress. When any family member experiences stress, theories suggest that their stress can affect other family members. Maternal parenting behaviors, however, cannot be viewed separately from patterns of dyadic interaction between mothers and children; it is important to understand how maternal characteristics, including parenting stress and emotion regulation, relate to patterns of dyadic mother-child interaction. The current study examined how maternal parenting stress related to three types of dyadic interaction, including conflict, cooperation, and reciprocity. It was expected that how parenting stress would relate to dyadic interaction would be different depending on how mothers reported regulating their emotions. Mothers and their 4-5.5-year-old children (n=116) participated in a building task where mothers taught children how to make figures out of interlocking blocks based on pictures provided to mothers. Findings showed that maternal emotion regulation did not increase or decrease how maternal parenting stress related to dyadic interaction between mothers and children. Dyads with boys, however, experienced higher scores of dyadic conflict, and boys in the sample were also younger than girls. Future exploration is needed to examine how parent characteristics like maternal emotion regulation and parenting stress may relate to dyadic interactions between mothers and children.
55

再評估情緒調節策略對主客觀入睡歷程的影響:探討睡前控制性認知程度之影響 / Effect of reappraisal on subjective and objective process of sleep onset: the influence of presleep controlling cognitive activity

蘇偉誠, Su, Wei Cheng Unknown Date (has links)
研究目的:再評估策略在清醒時是廣為使用且能夠有效降低負向情緒的方法之一。若個人在睡前使用,應預期也能降低情緒而促進入睡。然而,調查研究卻發現睡前使用再評估策略的習慣與入睡歷程未有預期的正向關連。研究者回顧發現,再評估策略可能包含了各種不同性質的次分類,高控制性的再評估策略可能會導致過度激發狀態,影響入睡。本研究目的即在於比較控制性高(改變對當下情境的詮釋)與低(接受)的再評估策略,讓兩組受試者在使用不同策略後嘗試入睡,並詢問其入睡歷程下的主觀入睡經驗。預期高控制再評估策略會導致受試者較高的認知激發狀態,而在階段二睡眠喚醒後有較多人自陳仍有思考活動,較少人自認已經睡著,以釐清入睡前使用不同次分類再評估策略所造成的控制性認知活動,可能對入睡歷程帶來的影響。 研究方法:本研究共招募26名受試者,並隨機分派至接受組(13人,7位男性,6位女性,平均年齡23.6歲)與對當下情境詮釋組(13人,男性6位,女性7位,平均年齡24.9歲)。受試者皆須依序經過中性情境以及情緒誘發情境兩個夜晚。在情緒誘發情境下,主試者會對其表現給予負向回饋以引發情緒,接著依不同組別要求受試者在睡前使用不同再評估策略來調適情緒,隨後嘗試入睡。同時,主試者會在睡前測量受試者的認知激發狀態,並於進入階段二睡眠後,即時喚醒詢問其入睡歷程意識經驗,包含主觀入睡知覺(自評睡著與否)、思考活動(是否仍有思考)等。 研究結果:本研究結果顯示,睡前使用高控制性策略,的確造成較高的入睡前控制活動,形成較高認知激發狀態,影響入睡歷程。在階段二睡眠喚醒後,使用較高控制性策略的組別也較另一組有較高比例報告仍在思考,覺得自己尚未睡著,並低估自己有睡著的時間。 結論:本研究探討控制性不同的再評估策略對主客觀入睡歷程的影響。研究結果支持高控制性策略會造成認知激發狀態,並使受試者在客觀定義入睡喚醒後,仍有較多的思考活動與較少的入睡知覺,同時較低估自己有睡著的時間,顯示入睡前較高的控制性認知活動,的確可能影響受試者的入睡歷程。這支持了先前研究對再評估策略並非單一構念的假設,未來研究再評估策略時,須考慮其次分類才能有全面性的了解。最後,對照過去研究,睡前使用再評估策略的習慣與入睡歷程未有預期的正向關連,可能是與未考慮控制性有關。 / Objective: Reappraisal was found to be effective to decrease negative emotion, thus is considered to be an useful strategy for emotion regulation, because it was (Gross, 1998; 2001). Since negative emotion is associated with sleep disruption, reappraisal is supposed to facilitate sleep-onset. Nevertheless, previous study did not support this point of view (Harvey, 2001; Ree et al., 2005). There was a negative association reported between use of reappraisal and sleep quality in insomnia patients. Researchers have identified different types of reappraisal strategies (McRae et al., 2011) with different levels of controlling cognitive activity. The unexpected association between reappraisal and sleep might be due to the impact of increased level of cognitive activity associated with reappraisal. This study aims to compare the effects of two types of reappraisal strategies, change thought (high cognitive activity) and accept feelings (low cognitive activity), on sleep onset process. Methods: Twenty six participants were recruited for this study, randomized to one of two groups (Acceptance group: N=13, average age=23.6 years; Change group: N=13, average age=24.9 years). Each participant will go through two nights of sleep recording at the sleep lab. The first night was baseline condition; the second night was experimental condition. After the emotion induction, the experimenter instructed the participants to use different reappraisal strategies to regulate their emotion, and then asked them to try to fall sleep in the experimental night. The experimenter woke up participants after 5-min after the start of stage 2 sleep, and asked their subjective experience right before waking up, including sleep perception (sleep or not) and thinking experience. Results: As expected, the Change group had higher controlling cognitive activity and arousal level than the Acceptance group before going to bed. Then, after waking up participants on stable stage 2 sleep, the Change group had higher thinking experience, lower sleep perception and underestimated sleep time than Acceptance group. Conclusions: The findings of this research show that high controlling activity reappraisal could have a negative impact on sleep-onset period than low controlling activity reappraisal. The result supports our hypothesis that controlling cognitive activity can increase pre-sleep arousal level that further increase cognitive activity during sleep-onset period and decrease the perception of sleep.
56

Emotion Regulation through Multiple Customer Mistreatment Episodes: Distinguishing the Immediate and Downstream Effects of Reappraisal and Acceptance

Krantz, Daniel J. 24 March 2021 (has links)
No description available.
57

Youth Emotion Regulation and Processing: Risk and Resilience Factors in the Context of Maternal Depression

Patton, Emily 13 September 2016 (has links)
No description available.
58

從事件關聯電位探討非意識性情緒調控的時間歷程與效果 / Investigating the temporal dynamics of non-conscious emotion regulation processing and effects using event-related potentials

楊宗翰, Yang, Tsung Han Unknown Date (has links)
大部分情緒調控研究,著重於意圖性(deliberate)調控策略的使用與效果比較(如認知再評估與壓抑)。Bargh, Lee-Chai, Barndollar, Gollwitzer, & Trötschel (2001)透過一系列實驗發現,高階的行為目標,即便在人類覺知外激發,亦能促發人們非意識地產生該目標,並有相關的追求行為。在這樣的理論與實證支持下,Mauss, Cook, & Gross (2007)驗證了情緒調控能以非意識行為進行。Williams, Bargh, Nocera, & Gray (2009)的研究更發現不管是意識或是非意識性地進行情緒調控,都能有效降低心跳改變率。由於目前仍缺乏許多非意識性情緒調控的效果與歷程證據,本研究目的即在藉由事件關聯電位,探討非意識性情緒調控的效果與時間歷程。實驗一透過事件關聯電位,驗證情緒調控能在非意識情況下發生,並發現非意識性壓抑能發生在情緒反應剛產生的300至700毫秒內。實驗二則加入了意識性重新評估與壓抑組參與者,與非意識性重新評估與壓抑組作比較。結果顯示,對參與者而言,(1) 正向情緒為一較容易調控的情緒類別。(2) 使用重新評估調控情緒的效果,仍顯著優於使用壓抑策略。(3) 非意識性情緒調控的結果,也比意識性調控情緒來得較佳。這樣的實驗結果支持了非意識情緒調控的可行性與優點。 / Studies of emotion regulations mostly focused on deliberate control strategies such as cognitive reappraisal and suppression. Bargh and his colleagues conducted a series of experiments and found higher behavioral goals could be primed non-consciously, i.e. outside human awareness (Bargh et al., 2001). Under these assumptions, Mauss, Cook and Gross (2007) verified how emotion regulations be formed through non-conscious behaviors. Williams, Bargh, Nocera, and Gray (2009) also found both conscious and non-conscious reappraisals deduced heart-rate changes. However, it is lack of studies investigating the effects and temporal dynamics of non-conscious emotion regulation. The purpose of this research is to analyze the temporal dynamics and effects of non-conscious emotion regulation processing using event-related potentials. In the first experiment, we verified emotion regulation could be operated under non-conscious way. Also we found non-conscious suppressed goals would be primed and regulated at the beginning of emotional response, i.e., in 300-700ms after the onset of emotion pictures. In the second experiment, we added conscious reappraisal and suppression condition for comparing the non-conscious and conscious regulated effects and time processes. The results showed (1) It was easy for participants to regulate positive emotion. (2) The emotion regulation effect was better with reappraisal strategy than with suppression. (3) Non-conscious emotion regulation would result in better regulated outcomes than conscious emotion regulation. These results supported the practicability and advantages of non-conscious emotion regulation.
59

認知再評估能力對睡前情緒調節表現及入睡之影響 / The effect of cognitive reappraisal ability on presleep emotion regulation and sleep onset

陳諳融, Chen, An Jung Unknown Date (has links)
過去研究顯示負向情緒會干擾夜間睡眠,預期可有效降低負向情緒的情緒調節策略應有助於睡眠,然而,認知再評估策略對睡眠的影響卻未有一致的研究結果,此可能受限於過去研究多以問卷測量認知再評估策略的使用偏好,卻未測量個體使用策略的能力,亦即認知再評估策略的調節效果。本研究透過實驗室典範測量認知再評估能力,主要探討個體使用認知再評估策略的能力是否會影響個體於夜間情緒調節的效果,以及再評估策略於睡前之適用性。本研究受試者共24位,包含11名男性與13名女性,平均年齡為22歲。受試者皆依序經歷引發和調節負向情緒的實驗情境與中性情境兩個夜晚,並以主觀問卷與客觀生理反應測量受試者使用認知再評估策略調節情緒的表現,及對其後續睡眠的影響,在兩晚作業結束後,受試者會回到實驗室進行認知再評估能力測量作業。研究結果發現,認知再評估能力佳者於實驗晚的情緒調節表現較佳,在能力指標中,正負向與憤怒感調節佳者,其睡前生理激發度增加量較低、入睡前高頻腦波相對功率較低,且較不會高估入睡耗時;此外,運用再評估策略會增加較高情緒控制感者,入睡後高頻腦波相對功率較低,且實驗晚所增加的入睡耗時較低。整體來說,負向情緒會干擾後續睡眠,於正負向指標上調節能力佳者較可減少其主觀失眠困擾度,且使用再評估策略後有較高情緒控制感者,較可彈性的運用再評估策略。 / Negative emotion has been showed to interfere with sleep, therefore effective emotion regulation to reduce negative emotion prior to sleep could be beneficial for sleep. Cognitive reappraisal is generally considered to be an effective and adaptive emotion-regulation strategy, but previous studies had inconsistent findings about the impact of reappraisal on sleep. A study has even found that insomnia patients had a higher frequency to use reappraisal in comparison to good sleepers. However, previous studies used self-report measure of an individual's tendency to use reappraisal. It has been shown that the frequency of using reappraisal did not correlate with the ability to use reappraisal as measured by reduction of stress reactivity after standard laboratory challenge. The present study examined the hypothesis that the impact of pre-sleep reappraisal on sleep onset process depends on individual's cognitive reappraisal ability (CRA). Twenty-four normal sleepers were recruited (male:11, female:13, average age: 22 years). Participants came to sleep laboratory for two experimental nights and one daytime reappraisal ability evaluation. For the two experimental nights, participants did a cognitive task and got two different feedbacks for the two conditions: either a neutral feedback (baseline condition night) or a negative feedback (experimental condition night). They were instructed to use cognitive reappraisal strategy to reduce negative emotion after getting negative feedback. The change of subjective emotion ratings and physiological reaction were measured during the presleep task. Polysomnographic recording and subjective ratings of sleep onset experience was conducted for the sleep onset process analysis. During the daytime session, the ability of the participants to use reappraisal was measured with physiological reactivity to a standard laboratory challenge with anger-inducing films. The results showed that, at experimental night, participants with high CRA in reducing emotion valence exhibited better emotion regulation outcomes, less presleep somatic arousal increments, lower beta power before falling asleep, and less overestimation of their sleep onset latency (SOL). Besides, participants with high CRA in reducing dominance of emotion exhibited shorter emotion regulation time, lower beta power after falling asleep, and lesser SOL increments. This finding is consistent with the hypothesis that reappraisal ability would determined whether cognitive reappraisal strategy is adaptive for presleep emotion regulation; those individuals with better CRA in reducing dominance of emotion might have more flexibility in applying reappraisal strategy.
60

Régulation émotionnelle et conduites alimentaires à risque : approfondissement du rôle de l’alexithymie et des émotions discrètes de types traits et états

Pugliese, Jessica 09 1900 (has links)
La forte prévalence des conduites alimentaires à risque (CAAR), par exemple la restriction alimentaire, les vomissements auto-induits ainsi que les crises d’hyperphagie boulimique de sévérité non diagnostique, et les conséquences importantes qu’elles peuvent entraîner ont amené les chercheurs à vouloir mieux comprendre les facteurs impliqués dans leur développement. Cette thèse s’intéresse à un phénomène à la base d’un nombre grandissant de théories sur les CAAR : la régulation émotionnelle. Le premier article se concentre sur le concept d’alexithymie, un trait de personnalité jouant un rôle clé dans la régulation émotionnelle ainsi que le développement, le maintien et la rechute des CAAR. Bien que l’association entre l’alexithymie et les CAAR soit bien établie, les études n’offrent pas d’explication quant aux facteurs qui contribuent à l’apparition de traits de personnalité alexithymiques qui, à leur tour, placent l’individu à risque de développer des CAAR. En explorant la documentation scientifique disponible, il est possible de constater que plusieurs psychanalystes ont autrefois proposé des concepts pour expliquer le développement de l’alexithymie (p. ex. refoulement primaire, expérience non formulée, déni), mais ces théories ont rarement fait l’objet d’études empiriques. L’objectif du premier article est donc de tester ces modèles en utilisant deux stratégies de régulation émotionnelle provenant du modèle de James J. Gross, soit la suppression expressive et la réévaluation cognitive. Un échantillon de 292 femmes provenant majoritairement d’une population non clinique universitaire a complété le Toronto Alexithymia Scale-20 items, le Emotion Regulation Questionnaire et le Eating Disorder Inventory-2. Les résultats des médiations proposent que la suppression expressive prédit positivement les traits de personnalité alexithymiques, ce qui prédit positivement les CAAR. Inversement, la réévaluation cognitive prédit négativement les traits de personnalité alexithymiques, ce qui prédit ensuite négativement les CAAR. Ces résultats suggèrent qu’il pourrait être pertinent d’intervenir sur certains mécanismes potentiellement précurseurs de l’alexithymie afin de favoriser la diminution d’agirs comportementaux comme les CAAR. Les résultats de cette première étude ouvrent la réflexion sur des pistes d’intervention concrètes pouvant être mises en application auprès des personnes souffrant de CAAR. En effet, les résultats de cette thèse suggèrent qu’il pourrait être important d’aider l’individu à diminuer l’évitement/la suppression de ses émotions pour plutôt encourager leur exploration. Il est possible d’émettre l’hypothèse que ce type d’intervention permettrait, avec le temps, la diminution des traits alexithymiques, ceci en favorisant la formation de représentations mentales des émotions. Conséquemment, la diminution de décharges somatiques comme les CAAR pourrait s’en suivre. L’implication des résultats pour les thérapies de différentes approches (p.ex. psychodynamique, cognitivo-comportementale et basée sur la mentalisation) est ensuite discutée. Afin de préciser l’étude de la régulation émotionnelle dans les CAAR, le second article a pour but d’identifier les émotions jouant un rôle particulier au sein de ces comportements. Pour ce faire, cet article, qui comprend deux études, s’intéresse aux liens entre les catégories émotionnelles distinctes du modèle des émotions différentielles d’Izard (p. ex. tristesse, joie) et les CAAR. La première étude a pour objectif d’explorer l’association entre les émotions-traits et les conduites alimentaires de recherche de minceur et boulimiques. Un total de 244 femmes provenant en majorité d’une population non clinique universitaire a complété le Eating Disorder Inventory-2 et le Differential Emotion Scale-trait version. Les analyses de régression démontrent que le modèle d’Izard prédit significativement les conduites de recherche de minceur et boulimiques. La contribution unique de chaque émotion-trait est ensuite étudiée. Les résultats indiquent que la honte est la seule émotion qui reste un prédicteur significatif des conduites de recherche de minceur et que seuls la culpabilité, le mépris et l’hostilité dirigée contre soi demeurent des prédicteurs significatifs des comportements boulimiques. Pour sa part, la seconde étude a pour but d’explorer l’association entre les émotions-états et les CAAR. Un total de 155 participantes provenant de l’échantillon de la première étude a complété un questionnaire leur demandant de rapporter par écrit un comportement de restriction ou de boulimie ayant eu lieu dans le passé. Elles ont ensuite complété le Differential Emotion Scale-state version. Les analyses descriptives démontrent que nonobstant la nature du comportement, la tristesse est l’émotion vécue la plus intensément par les participantes avant l’épisode rapporté. De plus, une comparaison de groupes a révélé que les personnes ayant décrit un épisode de boulimie ressentent significativement moins de joie et d’intérêt avant l’épisode que celles ayant rapporté un comportement restrictif. En résumé, les résultats suggèrent tout d’abord que les émotions négatives semblent jouer un rôle important au sein des CAAR. En ce sens, cet article appuie les recommandations de certains chercheurs à l’effet que l’intervention auprès des personnes ayant des CAAR nécessite d’inclure des volets dédiés à la régulation des émotions. Toutefois, ces études vont encore plus loin en proposant qu’il pourrait être pertinent de développer des interventions ciblées et concrètes permettant la gestion d’émotions ou de patrons d’émotions qui jouent un rôle prédominant auprès des différents CAAR. / The high prevalence of disordered eating (DE), for example food restriction, selfinduced vomiting or binge eating that are not of diagnostic severity, and the important consequences that they can entail have led researchers to further investigate the premorbid factors involved in them. The present thesis is interested in a phenomenon that is the basis of a growing body of theories on DE: emotion regulation. The first paper focuses on the concept of alexithymia, a personality trait that plays a key role in emotion regulation as well as in the development, maintenance, and relapse of DE symptoms. Although the association between alexithymia and DE is well established, current studies offer no explanation as to what factors contribute to the development of alexithymic personality traits, which in turn puts the individual at risk for DE. Several psychoanalysts have offered theoretical concepts to explain the development of alexithymia (e.g. primary repression, unformulated experience, denial), but these have not been submitted to empirical studies. The aim of the first study is to test these theories using two empirically established emotion regulation strategies taken from James J. Gross's model, namely expressive suppression and cognitive reappraisal. A sample of 292 women, the majority being undergraduated students, completed the Toronto Alexithymia Scale-20 items, the Emotion Regulation Questionnaire, and the Eating Disorder Inventory-2. The results of the mediation analyzes suggest that expressive suppression significantly and positively predicts alexithymic personality traits, which positively predicts DE. Inversely, cognitive reappraisal negatively predicts alexithymic personality traits, which then negatively predicts DE. These results suggest that it could be important to intervene on certain mechanisms that are potential precursors of alexithymia in order to promote the reduction of DE. More specifically, the results of this first study open up reflection on concrete lines of intervention that could be applied to vii people suffering from DE. Indeed, the results propose that it could be beneficial to encourage these individuals to explore their emotions rather then to avoid / suppress them. It can be hypothesised that these types of intervention will allow, over time, the reduction of alexithymic traits by promoting the formation of mental representations of emotions. Consequently, it is possible that the decrease in somatic discharges such as DE will follow. The implication of the results for different therapeutic approaches (psychodynamic, cognitive behavioral and mentalization-based) is then discussed. In order to further clarify the role of emotional regulation in DE, the second paper aims to identify emotions that play a key role in the disorder. This article, divided into two studies, focuses on the association between distinct emotional categories from Izard's differential emotions theory (e.g. sadness, joy) and pathological eating. The first study explores the relationship between trait-emotions and DE. A total of 244 women, the greater part being undergraduated students, completed the Eating Disorder Inventory-2 and the Differential Emotion Scale-trait version. Regression analyzes show that Izard's model significantly predicts both drive for thinness and bulimic behaviors. The unique contribution of each trait-emotion is then explored. The results indicate that shame is the only emotion that remains a significant predictor of drive for thinness and that only guilt, contempt and self-directed hostility remain significant predictors of bulimic behavior. As for the second study, a total of 155 participants coming from the first study sample completed a questionnaire asking them to report in writing an episode of restriction or bulimia that occurred in the recent past. They then completed the Differential Emotion Scale-state version. Descriptive analyzes reveal that regardless of the kind of DE, sadness is the emotion experienced most intensely by the participants before the reported episode. Furthermore, group comparisons indicate that people who report a bulimic episode felt viii significantly less joy and interest before the event than those who recalled a restrictive behavior. In summary, the results first suggest that people with DE experience more negative emotions on a daily basis. Thereby, this article supports the recommendations of certain researchers suggesting that interventions with people exhibiting DE should include components dedicated to the regulation of emotions. Moreover, these studies go even further by suggesting that it could be relevant to develop targets and concrete interventions allowing the regulation of specific emotions or patterns of emotions, which could play a predominant role with the various DE.

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