758 resultados para Ssociology of Emotion


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There are close links between emotions and values, or at least this is what our ordinary ways of talking suggest. For many, if not all, types of emotion it is thus possible to find a corresponding evaluative term, one often derived from the name of the emotion in question. These are for example evaluative terms such as ‘shameful’, ‘offensive, ‘annoying’, ‘dangerous’, ‘contemptible’, ‘admirable’, ‘amusing’, ‘exciting’, ‘boring’, and the like. Starting perhaps from these linguistic observations, the philosophical task is of course to elucidate the nature of the links between emotions and values, and attempts at doing so have traditionally revolved around the following three questions: first, what is the role of emotions in elucidating the nature of value? For example, should dangerousness be understood in term of the fear response? Second, what is the role of emotions in our getting access to values? For example, what may be the role of fear in becoming aware that a given animal is dangerous? Third, what value do emotions have? For example, is fear of special value because it helps behaving appropriately towards its object? We hall take up these questions in turn and survey the most important answers they have received in the literature. As we shall discover, answering the first question amounts to surveying a variety of theories according to which there is an ontological relation between values and emotions since the former should be elucidated in terms of the latter (Sec. 1). Addressing the second question consists in reviewing theories according to which there is an intentional relation between emotions and values because the former are apprehensions of value or evaluations (Sec. 2). Grappling with the third question, we shall explore some reasons for thinking that emotions can exemplify values (Sec. 3).

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The perception of the human body as container is widespread in cognitive linguistics, psychology and anthropology and is estimated to be universal. But what can we say about the specific context of the Hebrew Bible as well as Ancient-Near-Eastern texts and material culture, and more especially about anthropomorphic vessels in the Levant? Biblical, Egyptian and Mesopotamian texts compare the human body with pottery in order to emphasize its status of having been created (Geschöpflichkeit) on the one hand, and its fragility (Zerbrechlichkeit) on the other. Not in every case does the metaphor refer to an individual. Very often, however, it is used with relation to groups of people (nations) and requires particular caution when it comes to drawing a conclusion about the embodiment. The archaeological-iconographic record demonstrates that the human body, especially the female body, was imagined as a container. The fact that vessels in the shape of female bodies are the majority can partly be explained with the association between container and pregnancy. This essay aims at stimulating the discussion about embodiment in the Ancient Near East, concepts of emotion the body as a container in the Hebrew Bible, and its relation to the material culture.

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It is easy to get frustrated at spoken conversational agents (SCAs), perhaps because they seem to be callous. By and large, the quality of human-computer interaction is affected due to the inability of the SCAs to recognise and adapt to user emotional state. Now with the mass appeal of artificially-mediated communication, there has been an increasing need for SCAs to be socially and emotionally intelligent, that is, to infer and adapt to their human interlocutors’ emotions on the fly, in order to ascertain an affective, empathetic and naturalistic interaction. An enhanced quality of interaction would reduce users’ frustrations and consequently increase their satisfactions. These reasons have motivated the development of SCAs towards including socio-emotional elements, turning them into affective and socially-sensitive interfaces. One barrier to the creation of such interfaces has been the lack of methods for modelling emotions in a task-independent environment. Most emotion models for spoken dialog systems are task-dependent and thus cannot be used “as-is” in different applications. This Thesis focuses on improving this, in which it concerns computational modeling of emotion, personality and their interrelationship for task-independent autonomous SCAs. The generation of emotion is driven by needs, inspired by human’s motivational systems. The work in this Thesis is organised in three stages, each one with its own contribution. The first stage involved defining, integrating and quantifying the psychological-based motivational and emotional models sourced from. Later these were transformed into a computational model by implementing them into software entities. The computational model was then incorporated and put to test with an existing SCA host, a HiFi-control agent. The second stage concerned automatic prediction of affect, which has been the main challenge towards the greater aim of infusing social intelligence into the HiFi agent. In recent years, studies on affect detection from voice have moved on to using realistic, non-acted data, which is subtler. However, it is more challenging to perceive subtler emotions and this is demonstrated in tasks such as labelling and machine prediction. In this stage, we attempted to address part of this challenge by considering the roles of user satisfaction ratings and conversational/dialog features as the respective target and predictors in discriminating contentment and frustration, two types of emotions that are known to be prevalent within spoken human-computer interaction. The final stage concerned the evaluation of the emotional model through the HiFi agent. A series of user studies with 70 subjects were conducted in a real-time environment, each in a different phase and with its own conditions. All the studies involved the comparisons between the baseline non-modified and the modified agent. The findings have gone some way towards enhancing our understanding of the utility of emotion in spoken dialog systems in several ways; first, an SCA should not express its emotions blindly, albeit positive. Rather, it should adapt its emotions to user states. Second, low performance in an SCA may be compensated by the exploitation of emotion. Third, the expression of emotion through the exploitation of prosody could better improve users’ perceptions of an SCA compared to exploiting emotions through just lexical contents. Taken together, these findings not only support the success of the emotional model, but also provide substantial evidences with respect to the benefits of adding emotion in an SCA, especially in mitigating users’ frustrations and ultimately improving their satisfactions. Resumen Es relativamente fácil experimentar cierta frustración al interaccionar con agentes conversacionales (Spoken Conversational Agents, SCA), a menudo porque parecen ser un poco insensibles. En general, la calidad de la interacción persona-agente se ve en cierto modo afectada por la incapacidad de los SCAs para identificar y adaptarse al estado emocional de sus usuarios. Actualmente, y debido al creciente atractivo e interés de dichos agentes, surge la necesidad de hacer de los SCAs unos seres cada vez más sociales y emocionalmente inteligentes, es decir, con capacidad para inferir y adaptarse a las emociones de sus interlocutores humanos sobre la marcha, de modo que la interacción resulte más afectiva, empática y, en definitiva, natural. Una interacción mejorada en este sentido permitiría reducir la posible frustración de los usuarios y, en consecuencia, mejorar el nivel de satisfacción alcanzado por los mismos. Estos argumentos justifican y motivan el desarrollo de nuevos SCAs con capacidades socio-emocionales, dotados de interfaces afectivas y socialmente sensibles. Una de las barreras para la creación de tales interfaces ha sido la falta de métodos de modelado de emociones en entornos independientes de tarea. La mayoría de los modelos emocionales empleados por los sistemas de diálogo hablado actuales son dependientes de tarea y, por tanto, no pueden utilizarse "tal cual" en diferentes dominios o aplicaciones. Esta tesis se centra precisamente en la mejora de este aspecto, la definición de modelos computacionales de las emociones, la personalidad y su interrelación para SCAs autónomos e independientes de tarea. Inspirada en los sistemas motivacionales humanos en el ámbito de la psicología, la tesis propone un modelo de generación/producción de la emoción basado en necesidades. El trabajo realizado en la presente tesis está organizado en tres etapas diferenciadas, cada una con su propia contribución. La primera etapa incluyó la definición, integración y cuantificación de los modelos motivacionales de partida y de los modelos emocionales derivados a partir de éstos. Posteriormente, dichos modelos emocionales fueron plasmados en un modelo computacional mediante su implementación software. Este modelo computacional fue incorporado y probado en un SCA anfitrión ya existente, un agente con capacidad para controlar un equipo HiFi, de alta fidelidad. La segunda etapa se orientó hacia el reconocimiento automático de la emoción, aspecto que ha constituido el principal desafío en relación al objetivo mayor de infundir inteligencia social en el agente HiFi. En los últimos años, los estudios sobre reconocimiento de emociones a partir de la voz han pasado de emplear datos actuados a usar datos reales en los que la presencia u observación de emociones se produce de una manera mucho más sutil. El reconocimiento de emociones bajo estas condiciones resulta mucho más complicado y esta dificultad se pone de manifiesto en tareas tales como el etiquetado y el aprendizaje automático. En esta etapa, se abordó el problema del reconocimiento de las emociones del usuario a partir de características o métricas derivadas del propio diálogo usuario-agente. Gracias a dichas métricas, empleadas como predictores o indicadores del grado o nivel de satisfacción alcanzado por el usuario, fue posible discriminar entre satisfacción y frustración, las dos emociones prevalentes durante la interacción usuario-agente. La etapa final corresponde fundamentalmente a la evaluación del modelo emocional por medio del agente Hifi. Con ese propósito se llevó a cabo una serie de estudios con usuarios reales, 70 sujetos, interaccionando con diferentes versiones del agente Hifi en tiempo real, cada uno en una fase diferente y con sus propias características o capacidades emocionales. En particular, todos los estudios realizados han profundizado en la comparación entre una versión de referencia del agente no dotada de ningún comportamiento o característica emocional, y una versión del agente modificada convenientemente con el modelo emocional propuesto. Los resultados obtenidos nos han permitido comprender y valorar mejor la utilidad de las emociones en los sistemas de diálogo hablado. Dicha utilidad depende de varios aspectos. En primer lugar, un SCA no debe expresar sus emociones a ciegas o arbitrariamente, incluso aunque éstas sean positivas. Más bien, debe adaptar sus emociones a los diferentes estados de los usuarios. En segundo lugar, un funcionamiento relativamente pobre por parte de un SCA podría compensarse, en cierto modo, dotando al SCA de comportamiento y capacidades emocionales. En tercer lugar, aprovechar la prosodia como vehículo para expresar las emociones, de manera complementaria al empleo de mensajes con un contenido emocional específico tanto desde el punto de vista léxico como semántico, ayuda a mejorar la percepción por parte de los usuarios de un SCA. Tomados en conjunto, los resultados alcanzados no sólo confirman el éxito del modelo emocional, sino xv que constituyen además una evidencia decisiva con respecto a los beneficios de incorporar emociones en un SCA, especialmente en cuanto a reducir el nivel de frustración de los usuarios y, en última instancia, mejorar su satisfacción.

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We describe the work on infusion of emotion into limitedtask autonomous spoken conversational agents (SCAs) situated in the domestic environment, using a Need-inspired task-independentEmotion model (NEMO). In order to demonstrate the generation of a?ect through the use of the model, we describe the work of integrating it with a naturallanguage mixed-initiative HiFi-control SCA. NEMO and the host system communicates externally, removing the need for the Dialog Manager to be modi?ed as done in most existing dialog systems, in order to be adaptive. We also summarize the work on automatic a?ect prediction, namely frustration and contentment from dialog features, a non-conventional source, in the attempt of moving towards a more user-centric approach.

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This paper describes a variety of statistical methods for obtaining precise quantitative estimates of the similarities and differences in the structures of semantic domains in different languages. The methods include comparing mean correlations within and between groups, principal components analysis of interspeaker correlations, and analysis of variance of speaker by question data. Methods for graphical displays of the results are also presented. The methods give convergent results that are mutually supportive and equivalent under suitable interpretation. The methods are illustrated on the semantic domain of emotion terms in a comparison of the semantic structures of native English and native Japanese speaking subjects. We suggest that, in comparative studies concerning the extent to which semantic structures are universally shared or culture-specific, both similarities and differences should be measured and compared rather than placing total emphasis on one or the other polar position.

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This paper predicts speech synthesis, speech recognition, and speaker recognition technology for the year 2001, and it describes the most important research problems to be solved in order to arrive at these ultimate synthesis and recognition systems. The problems for speech synthesis include natural and intelligible voice production, prosody control based on meaning, capability of controlling synthesized voice quality and choosing individual speaking style, multilingual and multidialectal synthesis, choice of application-oriented speaking styles, capability of adding emotion, and synthesis from concepts. The problems for speech recognition include robust recognition against speech variations, adaptation/normalization to variations due to environmental conditions and speakers, automatic knowledge acquisition for acoustic and linguistic modeling, spontaneous speech recognition, naturalness and ease of human-machine interaction, and recognition of emotion. The problems for speaker recognition are similar to those for speech recognition. The research topics related to all these techniques include the use of articulatory and perceptual constraints and evaluation methods for measuring the quality of technology and systems.

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Introdução: O objetivo do estudo foi investigar se há associação entre déficits na capacidade de reconhecimento de emoções faciais e déficits na flexibilidade mental e na adequação social em pacientes com Transtorno Bipolar do tipo I eutímicos quando comparados a sujeitos controles sem transtorno mental. Métodos: 65 pacientes com Transtorno Bipolar do tipo I eutímicos e 95 controles sem transtorno mental, foram avaliados no reconhecimento de emoções faciais, na flexibilidade mental e na adequação social através de avaliações clínicas e neuropsicológicas. Os sintomas afetivos foram avaliados através da Escala de Depressão de Hamilton e da Escala de Mania de Young, o reconhecimento de emoções faciais através da Facial Expressions of Emotion: Stimuli and Tests, a flexibilidade mental avaliada através do Wisconsin Card Sorting Test e a adequação social através da Escala de Auto- Avaliação de Adequação Social. Resultados: Pacientes com Transtorno Bipolar do tipo I eutímicos apresentam uma associação de maior intensidade comparativamente aos controles entre o reconhecimento de emoções faciais e a flexibilidade mental, indicando que quanto mais preservada a flexibilidade mental, melhor será a habilidade para reconhecer emoções faciais Neste grupo às correlações de todas as emoções são positivas com o total de acertos e as categorias e são negativas com as respostas perseverativas, total de erros, erros perseverativos e erros não perseverativos. Não houve uma correlação entre o reconhecimento de emoções faciais e a adequação social, apesar dos pacientes com Transtorno Bipolar do tipo I eutímicos apresentar uma pior adequação social, sinalizando que a pior adequação social não parece ser devida a uma dificuldade em reconhecer e interpretar adequadamente as expressões faciais. Os pacientes com Transtorno Bipolar do tipo I eutímicos não apresentam diferenças significativas no reconhecimento de emoções faciais em relação aos controles, entretanto no subteste surpresa (p=0,080) as diferenças estão no limite da significância estatística, indicando que portadores de transtorno bipolar do tipo I eutímicos tendem a apresentar um pior desempenho no reconhecimento da emoção surpresa em relação aos controles. Conclusão: Nossos resultados reforçam a hipótese de que existe uma associação entre o reconhecimento de emoções faciais e a preservação do funcionamento executivo, mais precisamente a flexibilidade mental, indicando que quanto maior a flexibilidade mental, melhor será a habilidade para reconhecer emoções faciais e melhorar o desempenho funcional do paciente. Pacientes bipolares do tipo I eutímicos apresentam uma pior adequação social quando comparados aos controles, o que pode ser uma consequência do Transtorno Bipolar que ratifica a necessidade de uma intervenção terapêutica rápida e eficaz nestes pacientes

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This article is predicated on the idea that leaders shape workplace affective events. Based on Affective Events Theory (AET), I argue that leaders are sources of employee positive and negative emotions at work. Certain leader behaviors displayed during interactions with their employees are the sources of these affective events. The second theoretical underpinning of the article is the Asymmetry Effect of emotion. Consistent with this theory, employees are more likely to recall negative incidents than positive incidents. In a qualitative study, evidence that these processes exist in the workplace was found. Leader behaviors were sources of positive or negative emotional responses in employees; employees recalled more negative incidents than positive incidents, and they recalled them more intensely and in more detail than positive incidents. Consequently, leaders may need to exercise their emotional intelligence to generate emotional uplifts to overcome the hassles in the workplace that employees seem to remember so vividly. (c) 2006 Elsevier Inc. All rights reserved.

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Esta pesquisa analisou como estão sendo estabelecidos os vínculos afetivos nas relações de ensino-aprendizagem na modalidade de educação a distância. O trabalho foi desenvolvido dentro da perspectiva sócio-histórico-cultural que considera as emoções como constitutivas do pensamento, participantes do processo de significação e produção de sentidos. Durante a realização da pesquisa procuramos compreender a trajetória da EAD no Brasil, bem como verificar como está essa modalidade educativa hoje. Buscamos, ainda, explicitar as implicações da afetividade sobre o processo de ensino-aprendizagem, investigando manifestações de afetividade na modalidade de educação a distância. Para isso, nos baseamos em alguns autores, em especial, na teoria de Henri Wallon sobre o desenvolvimento humano. Para alcançar os objetivos deste trabalho fizemos uma retomada do processo histórico da EAD no Brasil, refletindo sobre a formação dos educadores e como essa modalidade tem sido desenvolvida no nosso país. Em um segundo momento, aprofundamos a discussão sobre afetividade e a criação de vínculos na EAD. Após essas etapas, partimos para a pesquisa de campo que consistiu em investigar 10 (dez) sujeitos envolvidos na modalidade: 2 (dois) professores temáticos, 2 (dois) professores-tutores e 6 (seis) alunos que estudam na modalidade de três instituições diferentes, sendo uma pública e duas privadas. Utilizamos como instrumentos de pesquisa questionários e roteiros semi-estruturados de entrevistas para aprofundar algumas questões. As análises demonstram que os vínculos afetivos entre professor-aluno são primordiais para a aprendizagem, definindo-se como condição imprescindível para o desenvolvimento cognitivo dentro do espaço escolar e na sociedade, e estes são estabelecidos tanto na modalidade presencial quanto na modalidade a distância, sendo fundamentais para que ocorra uma aprendizagem significativa.

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The current study examined the role of executive function in retrieval of specific autobiographical memories in older adults with regard to control of emotion during retrieval. Older and younger adults retrieved memories of specific events in response to emotionally positive, negative and neutral word cues. Contributions of inhibitory and updating elements of executive function to variance in autobiographical specificity were assessed to determine processes involved in the commonly found age-related reduction in specificity. A negative relationship between age and specificity was only found in retrieval to neutral cues. Alternative explanations of this age preservation of specificity of emotional recall are explored, within the context of control of emotion in the self-memory system and preserved emotional processing and positivity effect in older adults. The pattern of relationships suggests updating, rather than inhibition as the source of age-related reduction in specificity, but that emotional processing (particularly of positively valenced memories) is not influenced by age-related variance in executive control. The tendency of older adults to focus on positive material may thus act as a buffer against detrimental effects of reduced executive function capacity on autobiographical retrieval, representing a possible target for interventions to improve specificity of autobiographical memory retrieval in older adults.

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Based on the attributional reformulation of learned helplessness theory (Abramson, Seligman, & Teasdale, 1978) and Lazarus and Launier's (1978) primary-secondary appraisal theory of stress, the present study sought to examine teleworkers' reactions to their work-related problems. The role of attributions about the sources, and cognitions about the consesquences, of these problems in promoting positive adaptation was addressed. In particular, it was predicted that teleworkers who made optimistic attributions and cognitions would be more likely to employ problem-focused coping strategies and, as a result, report more positive psychological and job-related outcomes. Based on a survey sample of 192 teleworkers, the results indicated that a tendency to engage in self-blame was related to the use of emotion-focused coping strategies. In turn, there was evidence linking emotion-focused coping strategies to negative outcomes and problem-focused coping strategies to positive outcomes. The results are discussed in relation to attributional approaches to stress which highlight the importance of cognitions about the consequences of negative events. Finally, implications for the training of teleworkers are presented.

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Volume reduction and functional impairment in areas of the prefrontal cortex (PFC) have been found in borderline personality disorder (BPD), particularly in patients with a history of childhood abuse. These abnormalities may contribute to the expression of emotion dysregulation and aggressiveness. In this study we investigated whether the volume of the PFC is reduced in BPD patients and whether a history of childhood abuse would be associated with greater PFC structural changes. Structural MRI data were obtained from 18 BPD patients and 19 healthy individuals matched for age, sex, handedness, and education and were analyzed using voxel based morphometry. The Child Abuse Scale was used to elicit a past history of abuse; aggression was evaluated using the Buss-Durkee Hostility Inventory (BDHI). The volume of the right ventrolateral PFC (VLPFC) was significantly reduced in BPD subjects with a history of childhood abuse compared to those without this risk factor. Additionally, right VLPFC gray matter volume significantly correlated with the BDHI total score and with BDHI irritability and negativism subscale scores in patients with a history of childhood abuse. Our results suggest that a history of childhood abuse may lead to increased aggression mediated by an impairment of the right VLPFC. © 2013 Elsevier Ireland Ltd.

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The Acquired Immune Deficiency Syndrome (AIDS), considered today one chronic nature of the disease due to the advent of antiretroviral therapy (TARV), brings to individuals living with this disease, difficulties related to social interaction and adaptation to new physical condition and the routines imposed by the treatment. This reality has a strong impact on the lives of these people in order of overcoming them use coping strategies, Coping. In this context, the aim of this study was to characterize the epidemiological, clinical and life habits of people living with AIDS and analyze the coping strategies used with the situation of the disease, according to sociodemographic, clinical and life habits. This is a cross-sectional study with a quantitative approach. The sample consisted of 331 people registered at the clinic of the Hospital Giselda Trigueiro (HGT), located in Natal / RN, who had scheduling for outpatient medical consultation from January to August 2014. The study was approved by the Ethics Committee the Federal University of Rio Grande do Norte with the Presentation of Certificate for Ethics Assessment (CAAE), paragraph 16578613.0.0000.5537. The data of social characterization showed predominance of men (52%), young people (42%) coming from the capital (58%), mulatto (53%), single (56%), heterosexual (79%), poor (68 %). With regard to clinical aspects it has been found that most held the first HIV testing for less than five years (60%) had signs and symptoms of AIDS before the examination (90%) were hospitalized (90%) started ART for less than five years (60%) believe they have good knowledge of the disease (75%) and believe that their health has improved (92%). For lifestyle, it became clear that most do not consume alcohol (71%), do not smoke (88%) and do not use illicit drugs (92%) and never used condoms before diagnosis (62%) and only 192 (58%) use the currently codon. With regard to the reference was higher coping focused modes of emotion, although the problem solving has been the second most common. The mean scores of women, workers, religious and never abandoned the treatment were higher for all factors. Having a partner, living with family members and support in the treatment had higher average scores for various factors, coinciding in the confrontation, withdrawal and social support. As for the leisure and physical exercise also dominated the modes focused on emotion as was seen in the correlation between the time of treatment, education and family income and IEEFL factors, although with low intensity. The profile of the study population confers with national characteristics, suggesting feminization, internalization, pauperization, heterosexual, increased CD4 cell count and viral load reduction during treatment and maintaining healthy lifestyle habits. Coping strategies used were more focused on emotion. In this context, it is understood that the identification of these strategies can facilitate care planning, encouraging such persons to adapt to stressors with the situation of the disease

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Essa pesquisa tem como objeto a comunicação política com foco na propaganda eleitoral, no contexto da democracia midiática. Partindo deste princípio, delineia-se o problema de pesquisa: estudar como a propaganda eleitoral tem se apropriado do contexto da democracia midiática para expor suas mensagens, o uso entre a razão e a emoção, a venda de sonhos ao eleitor entre outros assuntos como as críticas ao adversário e as promessas que realizam. O objetivo da pesquisa é destacar os tipos de conteúdos elaborados para serem transmitidos aos eleitores que assistem ao horário eleitoral gratuito, analisar os argumentos, a qualidade e o teor de tais veiculações, assim como destacar as distinções entre eles, avaliando assim sua efetividade, suas principais características, o que os diferenciava e quais os recursos que usavam para atrair a atenção e o voto dos eleitores. A metodologia adotada foi a análise de conteúdo, uma vez que se deseja compreender quais são os principais sinais e características definidos pelos partidos e pelos candidatos no momento de serem divulgados. Foram definidas seis categorias para a análise de dez vídeos do horário eleitoral gratuito na televisão dos três principais candidatos, tanto do primeiro, quanto do segundo turno. Conclui-se que a candidata Dilma Rousseff foi a que mais aproveitou de todos os artifícios estratégicos da comunicação política, da propaganda eleitoral, apropriada da democracia midiática, com forte apelo emotivo nas categorias analisadas, resultando em uma vitória apertada, a mais disputada até hoje, porém, de resultado positivo para a campanha de reeleição da presidente

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We examined how individual differences in social understanding contribute to variability in early-appearing prosocial behavior. Moreover, potential sources of variability in social understanding were explored and examined as additional possible predictors of prosocial behavior. Using a multi-method approach with both observed and parent-report measures, 325 children aged 18-30 months were administered measures of social understanding (e.g., use of emotion words; self-understanding), prosocial behavior (in separate tasks measuring instrumental helping, empathic helping, and sharing, as well as parent-reported prosociality at home), temperament (fearfulness, shyness, and social fear), and parental socialization of prosocial behavior in the family. Individual differences in social understanding predicted variability in empathic helping and parent-reported prosociality, but not instrumental helping or sharing. Parental socialization of prosocial behavior was positively associated with toddlers' social understanding, prosocial behavior at home, and instrumental helping in the lab, and negatively associated with sharing (possibly reflecting parents' increased efforts to encourage children who were less likely to share). Further, socialization moderated the association between social understanding and prosocial behavior, such that social understanding was less predictive of prosocial behavior among children whose parents took a more active role in socializing their prosociality. None of the dimensions of temperament was associated with either social understanding or prosocial behavior. Parental socialization of prosocial behavior is thus an important source of variability in children's early prosociality, acting in concert with early differences in social understanding, with different patterns of influence for different subtypes of prosocial behavior.