887 resultados para Law|Psychology, Social|Psychology, Experimental


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The present dissertation examined why people adopt or endorse certain political ideologies (i.e., liberal or conservative). According to a motivated social cognition perspective (Jost, Glaser, Kruglanski, & Sulloway, 2003a; Kruglanslexperimental research examining differences between liberals and conservatives, it was proposed that four social-cognitive needs (Need for Inclusiveness, Need for Understanding, Need for Change, and Avoidance of Decisional Commitment) would be associated with liberalism. Moreover, research suggests that the relations between the needs and liberalism might be moderated by political sophistication (e.g., Converse, 1964). University students (Study 1; n == 201) and community adults (Study 2; n == 197) completed questionnaires assessing political liberalism, political sophistication, and individual differences 're~ective of the four proposed needs. As predicted, correlation and hierarchical regression analyses in both Studies 1 and 2 indicated that political liberalism was related to Need for Inclusiveness, Need for Understanding, and Need for Change. 11 Avoidance of Decisional Commitment uniquely predicted political liberalism in Study 2; however, contrary to predictions, it was unrelated to political liberalism in Study 1. Furthermore, some of these relations were moderated by political sophistication, such that among individuals with a greater knowledge of politics, the relation between certain needs and liberalism was positive. To explore the role of situationally induced needs on political liberalism, each of the four proposed needs were manipulated in Study 3. Participants (n == 120) completed one of five scrambled-sentence tasks (one for each need condition and control condition), measures of explicit and implicit political liberalism, political sophistication, and state and trait measures indicative of the four proposed needs. The ~anipulation did not successfully prime participants with the needs. Therefore, a replication of the analyses from Studies 1 and 2 was conducted on the dispositional needs. Results showed that Need for Inclusiveness, Need for Understanding, and Need for Change were linked with greater explicit and implicit political liberalism. Study 4 examined the effect of manipulated Need for Inclusiveness on participants' endorsement ofpolitical liberalism, independent of conservatism. Participants (n == 43) were randomly assigned to a Need for Inclusiveness or control condition, and completed separate measures of political liberalism and conservatism, and political sophistication. Participants in the Need for Inclusiveness condition reported greater liberalism than those in a control condition; this effect was not moderated by political sophistication. Generally, the findings from this dissertation suggest that there might be other needs underlying political ideology, especially political liberalism. Thus, consistent with others' (Jost, Glaser et aI., 2003a), individuals might adopt political liberalism as a way of gratifying certain psychological needs. Implications and future research are discussed.

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Underlying intergroup perceptions include processes of social projection (perceiving personal traitslbeliefs in others, see Krueger 1998) and meta-stereotyping (thinking about other groups' perceptions of one's own group, see Vorauer et aI., 1998). Two studies were conducted to investigate social projection and meta-stereotypes in the domain of White-Black racial relations. Study 1, a correlational study, examined the social projection of prejudice and 'prejudiced' meta-stereotypes among Whites. Results revealed that (a) Whites socially projected their intergroup attitudes onto other Whites (and Blacks) [i.e., Whites higher in prejudice against Blacks believed a large percentage of Whites (Blacks) are prejudiced against Blacks (Whites), whereas Whites low in prejudice believed a smaller percentage of Whites (Blacks) are prejudiced]; (b) Whites held the meta:..stereotype that their group (Whites) is viewed by Blacks to be prejudiced; and (c) prejudiced meta-stereotypes may be formed through the social projection of intergroup attitudes (result of path-model tests). Further, several correlates of social projection and meta-stereotypes were identified, including the finding that feeling negatively stereotyped by an outgroup predicted outgroup avoidance through heightened intergroup anxiety. Study 2 replicated and extended these findings, investigating the social projection of ingroup favouritism and meta- and other-stereotypes about ingroup favouritism. These processes were examined experimentally using an anticipated intergroup contact paradigm. The goal was to understand the experimental conditions under which people would display the strongest social projection of intergroup attitudes, and when experimentally induced meta-stereotypes (vs. other-stereotypes; beliefs about the group 11 preferences of one's outgroup) would be most damaging to intergroup contact. White participants were randomly assigned to one of six conditions and received (alleged) feedback from a previously completed computer-based test. Depending on condition, this information suggested that: (a) the participant favoured Whites over Blacks; (b) previous White participants favoured Whites over Blacks; (c) the participant's Black partner favoured Blacks over Whites; (d) previous Black participants favoured Blacks over Whites; (e) the participant's Black partner viewed the participant to favour Whites over Blacks; or (£) Black participants previously participating viewed Whites to favour Whites over Blacks. In a defensive reaction, Whites exhibited enhanced social projection of personal intergroup attitudes onto their ingroup under experimental manipulations characterized by self-concept threat (i.e., when the computer revealed that the participant favoured the ingroup or was viewed to favour the ingroup). Manipulated meta- and otherstereotype information that introduced intergroup contact threat, on the other hand, each exerted a strong negative impact on intergroup contact expectations (e.g., anxiety). Personal meta-stereotype manipulations (i.e., when the participant was informed that her/ his partner thinks s/he favours the ingroup) exerted an especially negative impact on intergroup behaviour, evidenced by increased avoidance of the upcoming interracial interaction. In contrast, personal self-stereotype manipulations (i.e., computer revealed that one favoured the ingroup) ironically improved upcoming intergroup contact expectations and intentions, likely due to an attempt to reduce the discomfort of holding negative intergroup attitudes. Implications and directions for future research are considered.

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The relationship between testosterone concentrations and aggressive behaviour in studies of people has produced very inconsistent findings. However, one consistent fmding that has emerged is that competitive and aggressive interactions potentiate testosterone release in both human and non-human species. It has been argued that socially-induced alterations in testosterone concentrations may function to influence ongoing and/or future social behaviour. Nonetheless, few studies have empirically tested this hypothesis. The current series of experiments was designed to address the extent to which competitioninduced fluctuations in testosterone concentrations were associated with ongoing and/or subsequent social behaviour. In Study 1, men (n = 38) provided saliva samples prior to, and at the conclusion of, the Point Subtraction Aggression Paradigm (PSAP). Although baseline testosterone concentrations were not related to aggressive behaviour, there was a positive correlation between change in testosterone and aggressive behaviour such that men who were most aggressive on the PSAP demonstrated the largest increase in testosterone concentrations. Furthermore, a rise in testosterone during the PSAP predicted willingness to choose a subsequent competitive task. In Study 2, men and women provided saliva samples prior to and after competing against a same-sex opponent on the Number Tracing Task (NTT). The outcome of the competition was rigged such that half of the individuals won most of the races, while the other half lost most of the races, thus experimentally creating a winner and loser in the laboratory. Following the competitive interaction, men and women played the PSAP with their same-sex partner. Results indicated that men selected the aggressive response (but not reward or protection responses), more frequently than women. For men assigned to the loss condition, an increase in testosterone concentrations in response to the NTT predicted subsequent aggressive behaviour. For men assigned to the win condition, an increase in testosterone concentrations in response to the NTT predicted subsequent aggressive behaviour, but only among those men who scored high on trait dominance. Change in testosterone and trait dominance did not predict aggressive behaviour in women. In Study 3, men provided saliva samples prior to, during, and at the end of the PSAP. They were randomly assigned to one of four experimental conditions that differed in the extent to which they were provoked and whether they received reward for behaving aggressively (i.e., stealing points). Results indicated that baseline testosterone concentrations did not correlate with aggression in any of the experimental conditions. Consistent with Study 1, there was a positive correlation between change in testosterone and aggressive behaviour among men who were provoked, but did not receive reward for aggression (i.e., reactive condition). Men who were provoked but did not receive reward for aggression enjoyed the task the most and were more likely to choose the competitive versus non-competitive task relative to men assigned to the other experimental conditions. Also, individual differences in aggressive behaviour among these men were positively correlated with the extent to which they enjoyed the task. Together, these studies indicate that testosterone dynamics within the context of competition influence subsequent competitive and aggressive behaviours in humans and that testosterone may be a marker of the intrinsically rewarding nature of costly aggressive behaviour.

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Client-directed long-term rehabilitative goals and life satisfaction following head injury emphasize the importance of social inclusion, rather than cognitive or physical, outcomes. However, very little research has explored the socio-emotional factors that pose as barriers to social reintegration following injury. This study investigates social barriers following head injury (i.e., decision-making - Iowa Gambling Task [IGT] and mood – depression) and possible amelioration of those challenges (through treatment) in both highly functioning university students with and without mild head injury (MHI) and in individuals with moderate traumatic brain injury (TBI). An arousal manipulation using emotionally evocative stimuli was introduced to manipulate the subject’s physiological arousal state. Seventy-five university students (37.6% reporting a MHI) and 11 patients with documented moderate TBI were recruited to participate in this quasi-experimental study. Those with head injury were found to be physiologically underaroused (on measures of electrodermal activation [EDA] and pulse) and were less sensitive to the negative effects of punishment (i.e., losses) in the gambling task than those without head injury, with greater impairment being observed for the moderate TBI group. The arousal manipulation, while effective, was not able to maintain a higher state of arousal in the injury groups across trials (i.e., their arousal state returned to pre-manipulation levels more quickly than their non-injured cohort), and, subsequently, a performance improvement was not observed on the IGT. Lastly, head injury was found to contribute to the relationship between IGT performance and depressive symptom acknowledgment and mood status in persons with head injury. This study indicates the possible important role of physiological arousal on socio- emotional behaviours (decision-making, mood) in persons with even mild, non-complicated head injuries and across the injury severity continuum.

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Les études antérieures ont démontré les bénéfices de la satisfaction des besoins intrinsèques et du soutien à l’autonomie dans le domaine de l’éducation. Or, l’applicabilité des tenants principaux de la Théorie de l’Auto-Détermination (TAD; Deci & Ryan, 2000) n’a pas été investiguée auprès d’une population clinique d’adolescents. L’objectif de cette thèse doctorale est de faire la lumière sur la façon dont l'adaptation scolaire et sociale peut être favorisée par les agents de socialisation dans le contexte de la réadaptation sociale. Cette thèse est composée de deux études s’intéressant à l’application des tenants clés de la TAD auprès de deux échantillons d’adolescents vivant des problèmes d’adaptation et recevant des services d’éducation spécialisée et de réadaptation sociale. Les relations entre les concepts motivationnels de base sont étudiés afin de déterminer si, comme la TAD le propose, la satisfaction des besoins intrinsèques des jeunes peut être soutenue par le style interpersonnel des agents de socialisation (c.-à-d., le soutien à l’autonomie, l’implication et la structure). Il est aussi vérifié si ces concepts motivationnels améliorent la motivation ainsi que d’autres conséquences qui résultent de leur expérience, proposées par la TAD. La première étude a évalué si le style interpersonnel des enseignants peut favoriser la satisfaction des besoins des élèves, leur style de motivationl, tout comme leur ajustement scolaire. Les élèves en difficulté d’adaptation (N = 115) inscrits aux écoles internes des Centres de Réadaptation en raison de leurs problématiques émotionnelles et comportementales ont rempli les questionnaires à deux reprises, au début et à la fin de l’année scolaire. Les analyses de modèles d’équations structurelles révèlent que l’augmentation du soutien à l’autonomie et de l’implication (mais pas de la structure) des enseignants pendant l’année est associée à une augmentation de la satisfaction des besoins des élèves qui, conséquemment, conduit à une motivation scolaire plus auto-déterminée et à une diminution d’intentions de décrochage à la fin de l’année scolaire. De plus, l’amélioration de la satisfaction des besoins mène directement à une meilleure expérience affective à l’école. La deuxième étude consiste en une recherche expérimentale conduite auprès d’adolescentes en difficulté d’adaptation (N = 29). Le devis expérimental a permis de comparer l’impact de la présence (c. absence) du soutien à l’autonomie sur l’internalisation d’une tâche et sur les conséquences motivationnelles et expérientielles des jeunes. La tâche, fastidieuse mais importante, consistait à de la résolution de problèmes interpersonnels (activité clinique). Les résultats suggèrent qu’un style interpersonnel soutenant l’autonomie a augmenté la motivation auto-déterminée, la perception de la valeur de la tâche et son appréciation, ainsi que diminué les affects négatifs comparativement à la condition sans soutien à l’autonomie. Les résultats sont discutés en lien avec les implications théoriques et pratiques d’étendre la portée de la TAD à une population clinique d’adolescents aux prises avec des difficultés d’adaptation.

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Este trabajo constituye una revisión de la influencia de las variables individuales y contextuales sobre las actitudes hacia la discapacidad. Para alcanzar este objetivo, se describió el concepto de discapacidad desde una perspectiva social, en donde se concibió la discapacidad como un aspecto relacional en vez de una característica individual. Por otra parte se describieron las actitudes hacia la discapacidad, los tipos y sus consecuencias, teniendo en cuenta las percepciones, creencias, emociones, información sobre discapacidad y variables sociodemográficas las cuales tienen un papel significativo en la formación y mantenimiento de las actitudes hacia la discapacidad. Adicionalmente se presentaron algunas de las estrategias de intervención que tiene como propósito mejorar las actitudes, aspecto que puede ayudar o contribuir a la aceptación de las personas con discapacidad. Finalmente, el presente trabajo muestra la necesidad de continuar el estudio de las actitudes hacia la discapacidad, y el mejorar las intervenciones basadas en los hallazgos presentados.

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Esta investigación toma como marco general la Política de Reintegración Social y económica de personas y grupos alzados en armas en Colombia, en donde tras el estudio de las trayectorias en el conflicto de un grupo de 9 excombatientes, se aborda la relación existente entre los beneficios otorgados por dicha política y aquello que facilitó y motivó el ingreso, la permanencia y desmovilización de los grupos armados. Se presenta una caracterización e interpretación conceptual de las denominadas trayectorias en el conflicto, son establecidas relaciones y diferencias entre las organizaciones ilegales FARC y las AUC, se revisan las percepciones que frente a los beneficios del programa de reintegración tienen excombatientes y profesionales de la entidad que lidera dicho proceso y a partir de ello, es argumentada la incidencia que sobre el éxito de esta política tienen las características individuales y particulares, tanto de los excombatientes como de las organizaciones armadas ilegales.

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Contenido Introducción 1. Inteligencia emocional, liderazgo transformacional y género: factores que influencian el desempeño organizacional / Ana María Galindo Londoño, Sara Urrego Mayorga; Director: Juan Carlos Espinosa Méndez. 2. El rol de la mujer en el liderazgo / Andrea Patricia Cuestas Díaz; Directora: Francoise Venezia Contreras Torres. 3. Liderazgo transformacional, clima organizacional, satisfacción laboral y desempeño. Una revisión de la literatura / Juliana Restrepo Orozco, Ángela Marcela Ochoa Rodríguez; Directora: Françoise Venezia Contreras Torres. 4. “E-Leadership” una perspectiva al mundo de las compañías globalizadas / Ángela Beatriz Morales Morales, Mónica Natalia Aguilera Velandia; Director: Juan Carlos Espinosa. 5. Liderazgo y cultura. Una revisión / Daniel Alejandro Romero Galindo; Directora: Francoise Venezia Contreras Torres. 6. La investigación sobre la naturaleza del trabajo directivo: una revisión de la literatura / Julián Felipe Rodríguez Rivera, María Isabel Álvarez Rodríguez; Director: Juan Javier Saavedra Mayorga. 7. La mujer en la alta dirección en el contexto colombiano / Ana María Moreno, Juliana Moreno Jaramillo ; Directora: Françoise Venezia Contreras Torres. 8. Influencia de la personalidad en el discurso y liderazgo de George W. Bush después del 11 de septiembre de 2011 / Karen Eliana Mesa Torres; Director: Juan Carlos Espinosa. 9. La investigación sobre el campo del followership: una revisión de la literatura / Christian D. Báez Millán, Leidy J. Pinzón Porras; Director: Juan Javier Saavedra Mayorga. 10. El liderazgo desde la perspectiva del poder y la influencia. Una revisión de la literatura / Lina María García, Juan Sebastián Naranjo; Director: Juan Javier Saavedra Mayorga. 11. El trabajo directivo para líderes y gerentes: una visión integradora de los roles organizacionales / Lina Marcela Escobar Campos, Daniel Mora Barrero; Director: Rafael Piñeros. 12. Participación emocional en la toma de decisiones / Lina Rocío Poveda C., Gloria Johanna Rueda L.; Directora: Francoise Contreras T. 13. Estrés y su relación con el liderazgo / María Camila García Sierra, Diana Paola Rocha Cárdenas; Director: Juan Carlos Espinosa. 14. “Burnout y engagement” / María Paola Jaramillo Barrios, Natalia Rojas Mancipe; Director: Rafael Piñeros.

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Este libro suministra los conocimientos básicos para hacer bien los ejercicios del AQA, exámenes de secundaria. Los temas tratados son: Insomnio, percepción, relaciones (comportamiento reproductivo humano), la agresividad, desórdenes alimenticios, teorías de inteligencia, desarrollo del pensamiento, el papel de las hormonas y los genes, esquizofrenia, depresión (síntomas, explicaciones biológicas) desórdenes relacionados con la ansiedad, las adicciones (los efectos de los video juegos y ordenadores en gente joven, el juego, fumar), fobias. Hay análisis de datos y estadísticas relacionadas con los temas descritos.

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Guía de bolsillo para la revisión de los temas clave en el área de la psicología para alumnos de bachillerato (segundo ciclo de educación secundaria), niveles AS y A, adaptada a la especificación de AQA (Assessment and Qualifications Alliance) con trescientas preguntas rápidas y sus respuestas, organizadas en secciones temáticas y con consejos de examen. Contiene: memoria, fijación, métodos de investigación, estrés, influencia social y psicopatología.

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Esta guía contiene una revisión de todos los temas de psicología para el Programa del Diploma de Bachillerato Internacional (IB Diploma). Los temas del libro son: Historia de la psicología, metodología de la investigación, el nivel biológico de análisis, fisiología y comportamiento: hormonas, la genética y el comportamiento, la psicología evolutiva, el uso de tecnología investigando los procesos cognitivos, el nivel sociocultural de análisis, trastornos psicológicos, el stress, el comportamiento adictivo, la obesidad, psicología de las relaciones humanas, psicología del deporte, problemas en el deporte (uso de drogas, stress).

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This article explores young infants' ability to learn new words in situations providing tightly controlled social and salience cues to their reference. Four experiments investigated whether, given two potential referents, 15-month-olds would attach novel labels to (a) an image toward which a digital recording of a face turned and gazed, (b) a moving image versus a stationary image, (c) a moving image toward which the face gazed, and (d) a gazed-on image versus a moving image. Infants successfully used the recorded gaze cue to form new word-referent associations and also showed learning in the salience condition. However, their behavior in the salience condition and in the experiments that followed suggests that, rather than basing their judgments of the words' reference on the mere presence or absence of the referent's motion, infants were strongly biased to attend to the consistency with which potential referents moved when a word was heard. (c) 2006 Elsevier Inc. All rights reserved.

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Aggression in young people has been associated with a bias towards attributing hostile intent to others; however, little is known about the origin of biased social information processing. The current study explored the potential role of peer contagion in the emergence of hostile attribution in adolescents. 134 adolescents were assigned to one of two manipulated ‘chat-room’ conditions, where they believed they were communicating with online peers (e-confederates) who endorsed either hostile or benign intent attributions. Adolescents showed increased hostile attributions following exposure to hostile e-confederates and reduced hostility in the benign condition. Further analyses demonstrated that social anxiety was associated with a reduced tendency to take on hostile peer attitudes. Neither gender nor levels of aggression influenced individual susceptibility to peer influence, but aggressive adolescents reported greater affinity with hostile e-confederates.

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An experimental contingent valuation (CV) survey of university students was undertaken to explore the impact of social consensus information on people's stated willingness to pay (wtp) to address a farm animal welfare issue. The survey found that additional information presented to respondents on social consensus concerning the moral dimensions of the issue led to a greater perception of social consensus by respondents. This greater perception of social consensus appeared to result in a higher level of moral intensity associated with the issue and a higher stated wtp by respondents for policy to address the issue. However, as for many CV studies of public goods, a question remains as to whether the estimated wtp is a true measure of people's preferences and relative values or merely a measure of attitudes on an arbitrary monetary scale.

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This note presents the special issue on Experimental and Behavioral Economics. The volume includes some recent contributions from these correlated disciplines –empirical the former and theoretical the latter– and their potential contribution to the intersection of Economics with Psychology and Sociology. The project “El papel de la comparación social en las decisiones económicas bajo incertidumbre” (Junta de Andalucía, P07-SEJ-03155)” provided us with inspiration and financial support to publish this volume.