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A emoção raivosa em motoristas de automóvel, caminhão, motocicleta, ônibus e táxi; The emotion of anger in car, truck, motorbike, bus and taxi drivers

Presa, Luis Alberto Passos
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 26/07/2010 Português
Relevância na Pesquisa
37.06%
Os acidentes de trânsito representam uma das principais causas de mortes violentas no Brasil e no mundo. O estado emocional do motorista é um importante aspecto da direção segura. A emoção raivosa é uma das causas dos acidentes, pois prejudica a percepção, a tomada de decisão e a psicomotricidade. O objetivo geral foi comparar a emoção raivosa de motoristas através de dois instrumentos. Participaram 400 motoristas de Manaus, Amazonas, Brasil. Houve cinco tipos de motoristas (todos com 80 participantes): (1) de automóvel, (2) de caminhão, (3) de motocicleta (4) de ônibus e (5) de táxi. Os instrumentos aplicados foram: (1) o STAXI (State Trait Anger Expression Inventory), composto por 44 itens e o (2) SRT (Situações de Raiva no Trânsito), composto por 20 itens. Foram estabelecidas seis hipóteses. O propósito da hipótese 1 foi verificar se nos motoristas existe correlação significativa entre a emoção raivosa, sentida na vida em geral, com a emoção raivosa sentida no contexto do trânsito. Nas outras cinco hipóteses compararam-se os índices médios de emoção raivosa entre: faixas etárias, homens versus mulheres, níveis de escolaridade, não infratores versus infratores e profissionais versus amadores. Os resultados demonstraram que: (1) os motoristas que apresentam menor emoção raivosa na vida em geral tendem a apresentar menor emoção raivosa quando dirigem...

Análise de sinais de voz para reconhecimento de emoções.; Analysis of speech signals for emotion recognition.

Iriya, Rafael
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 07/07/2014 Português
Relevância na Pesquisa
36.92%
Esta pesquisa é motivada pela crescente importância do reconhecimento automático de emoções, em especial através de sinais de voz, e suas aplicações em sistemas para interação homem-máquina. Neste contexto, são estudadas as emoções Felicidade, Medo, Nojo, Raiva, Tédio e Tristeza, além do estado Neutro, que são emoções geralmente consideradas como essenciais para um conjunto básico de emoções. São investigadas diversas questões relacionadas à análise de voz para reconhecimento de emoções, explorando vários parâmetros do sinal de voz, como por exemplo frequência fundamental (pitch), energia de curto prazo, formantes, coeficientes cepstrais e são testadas diferentes técnicas para a classificação, envolvendo reconhecimento de padrões e métodos estatísticos, como K-vizinhos mais próximos (KNN), Máquinas de Vetores de Suporte (SVM), Modelos de Misturas de Gaussianas (GMM) e Modelos Ocultos de Markov (HMM), destacando-se o uso de GMM como principal técnica utilizada por seu custo computacional e desempenho. Neste trabaho é desenvolvido um sistema de identificação em estágio único obtendo-se resultados superiores a diversos sistemas na literatura, com uma taxa de reconhecimento de até 74,86%. Além disso...

Can we identify emotion over-regulation in infancy? Associations with avoidant attachment, dyadic emotional interaction and temperament

Martins, Eva Costa; Soares, Isabel; Martins, Carla; Tereno, Susana; Osório, Ana Alexandra Caldas
Fonte: John Wiley and Sons, Inc Publicador: John Wiley and Sons, Inc
Tipo: Artigo de Revista Científica
Publicado em //2012 Português
Relevância na Pesquisa
36.98%
Emotion over-regulation in infancy has seldom been the focus of empirical research. This study analysed the specificities of overregulation when compared with under-regulation (maladaptive) and adaptive regulation by testing its association with attachment, dyadic emotional interaction, and temperament. The sample consisted of 52 low-risk mother–infant dyads. During a home visit, dyadic emotional interaction was assessed in the daily routines and free play of 10-month-old infants. The infant’s emotion regulation was assessed using the Shape Sorter Task, and a temperament questionnaire was completed by the mother.Attachmentwas assessed at 12 or 16 months using the Strange Situation. As hypothesized, (i) emotion overregulation (versus adaptive regulation) was predicted by a lower quality of dyadic emotional interaction and marginally by avoidant attachment; (ii) over-regulation (versus under-regulation) was predicted by avoidant attachment; and (iii) the predictive role of avoidant attachment was substantiated after controlling for another measure of mother–infant interaction. Contrary to expectations, temperament did not distinguish between emotion regulation styles. The link between over-regulation and lower quality of mother–infant emotional interaction and avoidant attachment was demonstrated. There is empirical support to the claim that it is possible to identify emotion overregulation in infancy and that it is a maladaptive style of emotion regulation.; Fundação para a Ciência e a Tecnologia (SFRH/BD/16524/2004/254S); Neofarmacêutica

The brain decade in debate: III. Neurobiology of emotion

Blanchard,C.; Blanchard,R.; Fellous,J.-M.; Guimarães,F.S.; Irwin,W.; LeDoux,J.E.; McGaugh,J.L.; Rosen,J.B.; Schenberg,L.C.; Volchan,E.; Da Cunha,C.
Fonte: Associação Brasileira de Divulgação Científica Publicador: Associação Brasileira de Divulgação Científica
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/03/2001 Português
Relevância na Pesquisa
36.92%
This article is a transcription of an electronic symposium in which active researchers were invited by the Brazilian Society of Neuroscience and Behavior (SBNeC) to discuss the advances of the last decade in the neurobiology of emotion. Four basic questions were debated: 1) What are the most critical issues/questions in the neurobiology of emotion? 2) What do we know for certain about brain processes involved in emotion and what is controversial? 3) What kinds of research are needed to resolve these controversial issues? 4) What is the relationship between learning, memory and emotion? The focus was on the existence of different neural systems for different emotions and the nature of the neural coding for the emotional states. Is emotion the result of the interaction of different brain regions such as the amygdala, the nucleus accumbens, or the periaqueductal gray matter or is it an emergent property of the whole brain neural network? The relationship between unlearned and learned emotions was also discussed. Are the circuits of the former the underpinnings of the latter? It was pointed out that much of what we know about emotions refers to aversively motivated behaviors, like fear and anxiety. Appetitive emotions should attract much interest in the future. The learning and memory relationship with emotions was also discussed in terms of conditioned and unconditioned stimuli...

Sitting and silent meditation as a strategy to study emotion regulation

Menezes,Carolina B.; Pereira,Mirtes G.; Bizarro,Lisiane
Fonte: Pontificia Universidade Católica do Rio de Janeiro; Universidade de Brasília; Universidade de São Paulo Publicador: Pontificia Universidade Católica do Rio de Janeiro; Universidade de Brasília; Universidade de São Paulo
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/06/2012 Português
Relevância na Pesquisa
36.92%
Emotion regulation is the capacity to control the way in which people attend, perceive, process and react to emotional information. Practitioners of sitting and silent meditation develop a greater control of their mental processes, culminating in regulatory abilities that lead to well-being and emotional balance. In this paper we reviewed evidence from recent studies on neurophysiology and cognitive psychology on emotion regulation-focusing on negative emotions-and meditation in order to discuss their intertwining. This critical review showed that controlling attention and fostering a relaxation state are the main mechanisms for the interaction between emotion regulation and meditation. Importantly, it is suggested that the effects of meditation on emotion regulation should be conceptualized separately as those taking effect during the practice and those occurring as an outcome of such practice. Finally, it is highlighted that meditation should be conceived as a particular type of emotion regulation strategy, and that further studies comparing these strategies more directly are warranted.

Emotion Processing in Persons at Risk for Schizophrenia

Phillips, Laura K.; Seidman, Larry J.
Fonte: Oxford University Press Publicador: Oxford University Press
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
36.95%
Evidence suggests that individuals with schizophrenia demonstrate emotion-processing deficits. However, the nature and extent of emotion abnormalities in individuals considered at risk for schizophrenia have not been previously summarized. This article provides a review of the recent literature pertaining to emotion processing in 3 at-risk populations: those at familial high risk, those with schizotypal characteristics, and those in the putative prodrome to psychosis. Studies are reviewed across the components of emotion perception, experience, and expression. Further, we discuss investigations into psychophysiology, brain structure, and brain function that employ emotion probes. Review of the literature suggests that individuals at high risk demonstrate similar abnormalities to those with schizophrenia but at an attenuated level. The most robust findings in at-risk groups are in the areas of reduced emotion perception, self-reported anhedonia, and increased negative affect. We conclude with an agenda for future research.

Emotion Recognition and Psychosis-Proneness: Neural and Behavioral Perspectives

Germine, Laura Thi
Fonte: Harvard University Publicador: Harvard University
Tipo: Thesis or Dissertation
Português
Relevância na Pesquisa
37.01%
Schizophrenia is associated with deficits in social cognition and emotion processing, but it is not known how these deficits relate to other domains of neurocognition and whether they might contribute to psychosis development. The current dissertation approaches this question by looking at the relationship between psychosis proneness and face emotion recognition ability, a core domain of social-emotional processing. Psychosis proneness was inferred by the presence of psychosis-like characteristics in otherwise healthy individuals, using self-report measures. Face emotion recognition ability was found to be associated with psychosis-proneness across four large web-based samples and one lab sample. These associations were relatively specific, and could not be explained by differences in face processing or IQ. Using functional magnetic resonance imaging (fMRI), psychosis-proneness was linked with reduced neural activity in brain regions that underlie normal face emotion recognition, including regions that are implicated in self-representation. Additional experiments were conducted to explore psychosis-proneness related differences in self-representation, and a relationship was revealed between cognitive-perceptual (positive) dimensions of psychosis-proneness and (1) flexibility in the body representation (as measured by the rubber hand illusion)...

Attachment insecurity and maternal affective discourse as mediators of emotion dysregulation among toddlers of mothers diagnosed with major depressive disorder

González, Adriana Laura (1970 - ); Toth, Sheree L.
Fonte: University of Rochester. Publicador: University of Rochester.
Tipo: Tese de Doutorado Formato: Number of Pages:x, 137 leaves
Português
Relevância na Pesquisa
36.92%
Thesis (Ph. D.)--University of Rochester. Dept. of Clinical & Social Sciences in Psychology, 2009.; A developmental process model of intervening variables linking the effects that maternal depression, maternal affective discourse, and toddlers’ attachment exert on the emotion dysregulation difficulties of their offspring was conducted with a sample of 132 mother-toddler dyads. Participants included toddlers and their mothers who had experienced a major depressive episode since the birth of their child (n=66) and mothers without a history of any psychiatric disorder (n=66). A multi-method measurement strategy, which included diagnostic, observational, and self-report questionnaires, was employed. Maternal depression was assessed at toddlers’ twenty-months of age. Attachment and maternal affective discourse were assessed at toddlers’ twenty and thirty-six months of age. Emotion dysregulation was assessed at toddlers’ twenty-months and forty-eight-months of age. This investigation employed path analyses to examine the indirect effects of maternal depression, affective discourse, and toddlers’ attachment on changes on emotion dysregulation problems in toddlers. Results indicated that maternal depression was indirectly associated with offspring emotion dysregulation problems at 48-months through attachment insecurity. Early maternal depression also predicted maternal affective discourse at 36-months. However...

Emotion labour, emotion work and occupational strain in nurses.

Pisaniello, Sandra Louise
Fonte: Universidade de Adelaide Publicador: Universidade de Adelaide
Tipo: Tese de Doutorado
Publicado em //2010 Português
Relevância na Pesquisa
37.11%
Concerns about the psychological health of South Australian hospital nurses have been raised on account of nursing shortages, retention difficulties, and the associated resource constraints on the existing pool of nursing staff. According to workers compensation statistics, the nursing profession is prominent with respect to occupational stress claims, resulting in substantial costs for both the individuals and organisations concerned. This thesis addresses the question of if, and how, emotion labour and emotion work influence job stress and strain and job satisfaction in nurses. In a first study, 238 nurses (35 males) employed at a large public hospital completed a questionnaire comprising predictive measures addressing individual factors, workload and work environment, and outcome measures focussing on health, job strain and satisfaction, impressions of organisational commitment and intention to leave. The relationships of emotion labour and emotion work with the outcomes were assessed with regard to demographics, individual differences, workload and work environment factors. The association of emotion labour performance with individual differences, workload and work environment factors, as well as health and organisational outcomes...

The role of emotion in rational decision-making.

Stratton, Alison Kathryn
Fonte: Universidade de Adelaide Publicador: Universidade de Adelaide
Tipo: Tese de Doutorado
Publicado em //2012 Português
Relevância na Pesquisa
37.11%
Within philosophy of emotion, there has been the development of a pro-emotion consensus that claims emotion plays a positive and important role within decision-making. It has been suggested that the pro-emotion consensus is replacing "traditional" views of emotion which claim emotion is disruptive to rationality and is often the cause of irrational behaviour; claims which appear to be supported by empirical evidence. In this thesis I will be examining several pro-emotion theories and historical theories of emotion. I will argue that the suggestion that all historical theories of emotion are "anti-emotion" theories is incorrect and fails to take into account the many differences between historical accounts. In fact, claims made by some of these historical theories are not unlike those made by some pro-emotion accounts; the view that emotion is disruptive to rationality is limited to a small number of historical theories. Although all pro-emotion theories agree that emotion is necessary for decision-making, there are differences between accounts regarding the exact function emotion serves. I will argue that perceptual pro-emotion theories provide the best explanation of the role of emotion and of emotionally-driven irrational behaviour. I aim to show that the claims made by these perceptual theories and (some) historical theories are compatible and when we combine the insights of these accounts we have a comprehensive explanation of the role of emotions within rational decision-making...

Knowledge of the heart: ethical implications of sociological research with emotion

Prosser, B.
Fonte: SAGE Publications Publicador: SAGE Publications
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
36.92%
Emotions have been the subject of social science research for many decades. Predominantly, this research has been orientated around research on emotion. While this genre of research focuses on emotion as a topic of inquiry, I propose that research with emotion can contribute to different ways of understanding social experience. Due to a different epistemological foundation, different methodological approaches are required with different ethical implications. This article will define research with and on emotion, before providing examples of the former. Based on these examples, this article explores ethical implications. The article concludes with a brief reflection on the benefits of sociological research with emotion, against which the many challenges should be assessed.

Self-Regulation and Emotion: Predicting Risky Choice

PANNO, ANGELO
Fonte: La Sapienza Universidade de Roma Publicador: La Sapienza Universidade de Roma
Tipo: Tese de Doutorado
Português
Relevância na Pesquisa
37.03%
All of the experiments presented in this dissertation focus on people's risk taking. In order to shed light on mechanisms underlying this phenomenon, I point out how emotions (i.e., anticipated emotions, integral emotions, anticipated regret, and emotion regulation strategies) and individuals' goal-oriented self-regulation (i.e., regulatory mode) affect risky behaviors. First – in the present dissertation – I introduce a comprehensive series of three studies (i.e., chapter 2) demonstrating whether and how individuals' regulatory modes affect individual differences in taking risky choices. I further focus on the role of anticipated regret to explain how it arises from regulatory mode, and in turn, affects risk taking. In keeping with this view, the present work sheds light on mechanisms underlying the relationships among decision-maker's regulatory mode, anticipated emotions and risk taking. Second (i.e., chapter 3), I introduce a relatively new theory studied in decision-making research (Emotion Regulation Theory; ER, Gross & John, 2003), demonstrating how ER strategies adopted from people predict risky choices occurring in deliberative processes (i.e., processes which predominantly involve anticipated emotions). But the present work does more than this. Indeed...

Emotion recognition in youth chronically victimized by their peers

Irwin, ALEXANDRA
Fonte: Quens University Publicador: Quens University
Tipo: Tese de Doutorado
Português
Relevância na Pesquisa
36.98%
Bullying is a relationship problem defined by a power imbalance between individuals (Mahady-Wilton, Craig, & Pepler, 2000) and intent to inflict harm on another repeatedly and over time (Olweus, 2003). In the context of any relationship, the ability to quickly and accurately recognize others’ emotional states through their facial expressions enables adaptive responding (Izard et al., 2001). While emotions are at the crux of social interaction, the emotional components of the relationship between youth who bully and youth who are victimized have received little attention. No research to date has examined the emotion processes of youth who are repeatedly, or chronically, victimized by their peers. Literature suggests two contrasting explanations for emotion processing in victimized youth: 1) children who are targeted by peer bullying have emotion recognition deficits, and 2) youth who are recurrently victimized by parents show enhancements in identifying specific emotions. The current study assessed which explanation would hold for youth who were chronically victimized by peers by evaluating the emotion recognition abilities of chronically victimized youth as compared to their non-victimized peers. Fifty-two youth (10-14 years, 63.5% female...

The relation between emotional acceptance and emotion regulation in adolescent girls

Flynn, JESSICA
Fonte: Quens University Publicador: Quens University
Tipo: Tese de Doutorado Formato: 943764 bytes; application/pdf
Português
Relevância na Pesquisa
36.98%
Adolescents experience heightened emotional arousal and difficulty regulating that arousal. Adolescent girls have emotion regulation difficulties particularly associated with symptoms of depression and anxiety. In adults, the emotion dysregulation associated with depression and anxiety has been linked to not accepting emotions. Emotional non-acceptance is the act of judging certain emotional experiences as inadmissible and trying to avoid, suppress, or ignore those experiences. In adults, non-acceptance is thought to paradoxically lead to amplified emotional arousal and difficulty regulating arousal. Previous research supports this idea for the subjective experience of emotion but not the physiological response. The goal of the current study was to elicit these differences in physiology in order to better understand the effects of emotional non-acceptance on emotion regulation. Eighty-two adolescent girls were asked to perform a spontaneous speech while physiological and subjective responses were measured. These same measures were taken before and after the speech. Trait-like emotional non-acceptance was also measured. Although trait non-acceptance predicted differences in one aspect of physiology, there were no other effects of emotional acceptance or non-acceptance on physiological response. In line with previous research...

Factor structure and measurement invariance of the Difficulties Emotion Regulation Scale (DERS) in Spanish adolescents

Gómez Simón, Isabel; Penelo Werner, Eva; Osa, Nuria de la
Fonte: Universidade Autônoma de Barcelona Publicador: Universidade Autônoma de Barcelona
Tipo: Artigo de Revista Científica Formato: application/pdf
Publicado em //2014 Português
Relevância na Pesquisa
36.98%
Background: Emotion dysregulation is a unifying dimension of several psychopathological symptoms such as prolonged dysphoria, labile mood, high anger, persistent fear and excessive worry. Deficits in emotion regulation (ER), or emotion dysregulation, appear to be relevant to the development, maintenance, and promising treatment target in a broad range of mental disorders. The Difficulties in Emotion Regulation Scale (DERS) is the most comprehensive measure of emotion dysregulation to date, but the Spanish version has not been validated in adolescents. Method: A community sample of 642 Spanish adolescents aged 12-18 responded to the DERS. Results: Factor analysis suggested a six-factor solution, and strict measurement invariance across sex was achieved. Internal consistency for the subscales was moderate to satisfactory (.71-.88), except for Awareness (α = .62). We found some sex differences on subscale scores, with small effect sizes. Conclusions: The results obtained for the Spanish version of the DERS are promising for investigating emotion dysregulation in Spanish adolescents; Antecedentes: la disregulación emocional es una dimensión unificadora de varios síntomas psicopatológicos como la disforia prolongada, el humor lábil...

Continuous dimensional emotion tracking in music

Imbrasaite, Vaiva
Fonte: University of Cambridge; Faculty of Computer Science and Technology; Computer Laboratory Publicador: University of Cambridge; Faculty of Computer Science and Technology; Computer Laboratory
Tipo: Thesis; doctoral; PhD
Português
Relevância na Pesquisa
37.04%
The size of easily-accessible libraries of digital music recordings is growing every day, and people need new and more intuitive ways of managing them, searching through them and discovering new music. Musical emotion is a method of classification that people use without thinking and it therefore could be used for enriching music libraries to make them more user-friendly, evaluating new pieces or even for discovering meaningful features for automatic composition. The field of Emotion in Music is not new: there has been a lot of work done in musicology, psychology, and other fields. However, automatic emotion prediction in music is still at its infancy and often lacks that transfer of knowledge from the other fields surrounding it. This dissertation explores automatic continuous dimensional emotion prediction in music and shows how various findings from other areas of Emotion and Music and Affective Computing can be translated and used for this task. There are four main contributions. Firstly, I describe a study that I conducted which focused on evaluation metrics used to present the results of continuous emotion prediction. So far, the field lacks consensus on which metrics to use, making the comparison of different approaches near impossible. In this study...

Lost for emotion words: What motor and limbic brain activity reveals about autism and semantic theory

Moseley, Rachel L.; Shtyrov, Yury; Mohr, Bettina; Lombardo, Michael V.; Baron-Cohen, Simon; Pulverm?ller, Friedemann
Fonte: Elsevier Publicador: Elsevier
Tipo: Article; published version
Português
Relevância na Pesquisa
37.04%
The is the final published paper originally published in NeuroImage under a CC-BY licence (RL Moseley, Y Shtyrov, B Mohr, MV Lombardo, S Baron-Cohen, F Pulverm?ller, NeuroImage 2015, 104, 413-422); Autism spectrum conditions (ASC) are characterised by deficits in understanding and expressing emotions and are frequently accompanied by alexithymia, a difficulty in understanding and expressing emotion words. Words are differentially represented in the brain according to their semantic category and these difficulties in ASC predict reduced activation to emotion-related words in limbic structures crucial for affective processing. Semantic theories view ?emotion actions? as critical for learning the semantic relationship between a word and the emotion it describes, such that emotion words typically activate the cortical motor systems involved in expressing emotion actions such as facial expressions. As ASC are also characterised by motor deficits and atypical brain structure and function in these regions, motor structures would also be expected to show reduced activation during emotion-semantic processing. Here we used event-related fMRI to compare passive processing of emotion words in comparison to abstract verbs and animal names in typically-developing controls and individuals with ASC. Relatively reduced brain activation in ASC for emotionwords...

An Empirical Investigation of Eating Disorders and Difficulties Regulating Emotion: Do Difficulties Vary Based on Symptom Profiles?

Lacy, Jennie
Fonte: Universidade Duke Publicador: Universidade Duke
Tipo: Dissertação
Publicado em //2011 Português
Relevância na Pesquisa
36.95%

Eating disorders pose a serious threat to the physical and mental health of those who suffer from them. Given the impact of these disorders and difficulty treating them, it is important to understand the nature of them and factors involved in their development and maintenance. The empirical investigation of eating disorders is made difficult by the extreme heterogeneity seen within current DSM-IV diagnostic categories. Research on emotion regulation in eating disorders is rising, yet scant in terms of identifying specific difficulties and points of intervention. The proposed study focused on the construct of emotion regulation and its relation to the eating disorders by: (1) empirically identifying groups of eating disorder participants based on symptoms and (2) examining specific difficulties in emotion regulation capacities in each of the identified groups of eating disorder participants and (3) identifying whether difficulties in emotion regulation contribute to eating disorder symptom severity. A clinical sample of individuals with eating disorders was classified into subgroups based on symptom frequency using latent profile analysis. The most parsimonious and best fitting model was a four-profile solution which resulted in four distinct subgroups. Profile 1 consisted of individuals who endorsed moderate restriction and occasional binge eating and vomiting...

Expressive Control and Emotion Perception: the Impact of Expressive Suppression and Mimicry on Sensitivity to Facial Expressions of Emotion

Schneider, Kristin Grace
Fonte: Universidade Duke Publicador: Universidade Duke
Tipo: Dissertação Formato: 255382 bytes; application/pdf
Publicado em 28/05/2008 Português
Relevância na Pesquisa
36.95%

Recent studies have linked expressive suppression to impairments in interpersonal functioning, but the mechanism underlying this relationship has not been well articulated. One possibility is that the individual who engages in expressive suppression is impaired in perceiving the emotions of others, a critical ability in successful interpersonal functioning. In the current study, participants were presented with a series of photographs of facial expressions that were manipulated so that they appeared to "morph" from neutral into full emotion expressions. As they viewed these images, participants were instructed to identify the expression as quickly as possible, by selecting one of the six emotion labels (happiness, sadness, fear, anger, surprise, and disgust) on the screen. Prior to this task, participants were randomized to one of three groups: instructed to mimic the expressions on the screen, instructed to suppress all emotion expressions, or not given specific instructions on how to control expressions (the control group). The speed with which participants accurately identified emotional expressions (emotion sensitivity) was the primary variable of interest. Overall, participants in the suppression condition were found to be slower to accurately identify emotions...

Document Level Emotion Tagging: Machine Learning and Resource Based Approach

Das,Dipankar; Bandyopadhyay,Sivaji
Fonte: Centro de Investigación en computación, IPN Publicador: Centro de Investigación en computación, IPN
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2011 Português
Relevância na Pesquisa
36.98%
The present task involves the identification of emotions from Bengali blog documents using two separate approaches. The first one is a machine learning approach that accumulates document level information from sentences obtained from word level granular detail whereas the second one is a resource based approach that considers the Bengali WordNet Affect, the word level Bengali affective lexical resource. In the first approach, the Support Vector Machine (SVM) classifier is employed to perform the word level classification. Sense weight based average scoring technique determines the sentential emotion scores based on the word level emotion tagged constituents. The cumulative summation of sentential emotion scores is assigned to each document considering the combinations of various heuristic features. The second one implements a majority based approach to classify a given document considering the Bengali WordNet Affect lists. Instead of assigning a single emotion tag to a document, in both approaches, the best two emotion tags are assigned to each document according to the ordered emotion scores obtained. By applying the best feature combination acquired from the development set, the evaluation of 110 test documents yields the average F-Scores of 59.50% and 51.07% for the two approaches respectively with respect to all emotion classes.