RESUMO
In this study, we investigated the effect of intergroup contact on processing of own- and other-race faces using functional Magnetic Resonance Imaging (fMRI). Previous studies have shown a neural own-race effect with greater BOLD response to own race compared to other race faces. In our study, white participants completed a social-categorization task and an individuation task while viewing the faces of both black and white strangers after having answered questions about their previous experiences with black people. We found that positive contact modulated BOLD activity in the right fusiform gyrus (rFG) and left inferior occipital gyrus (lIOC), regions associated with face processing. Within these regions, higher positive contact was associated with higher activity when processing black, compared to white faces during the social categorisation task. We also found that in both regions a greater amount of individuating experience with black people was associated with greater activation for black vs. white faces in the individuation task. Quantity of contact, implicit racial bias and negatively valenced contact showed no effects. Our findings suggest that positive contact and individuating experience directly modulate processing of out-group faces in the visual cortex, and illustrate that contact quality rather than mere familiarity is an important factor in reducing the own race face effect.
Assuntos
Negro ou Afro-Americano/psicologia , Reconhecimento Visual de Modelos/fisiologia , Racismo/psicologia , População Branca/psicologia , Adulto , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Neurociências/tendências , Lobo Occipital/diagnóstico por imagem , Lobo Occipital/fisiologia , Estimulação Luminosa , Reconhecimento Psicológico/fisiologia , Lobo Temporal/diagnóstico por imagem , Lobo Temporal/fisiologiaRESUMO
INTRODUCTION: The beta-adrenoceptor antagonist propranolol is known to reduce peripheral and central activity of noradrenaline. A recent study found that intervention with propranolol diminished negative implicit racial bias. MATERIALS AND METHOD: The current study used functional magnetic resonance imaging (fMRI) in order to determine the neural correlates of this effect. Healthy volunteers (N = 40) of white ethnic origin received a single oral dose (40 mg) of propranolol, in a randomised, double-blind, parallel group, placebo-controlled design, before viewing unfamiliar faces of same and other race. RESULTS AND DISCUSSION: We found significantly reduced activity in the fusiform gyrus and thalamus following propranolol to out-group faces only. Additionally, propranolol lowered the implicit attitude score, without affecting explicit prejudice measure. CONCLUSION: These findings suggest that noradrenaline pathways might modulate racial bias by acting on the processing of categorisation in the fusiform gyrus.
Assuntos
Antagonistas Adrenérgicos beta/farmacologia , Face , Preconceito , Propranolol/farmacologia , Lobo Temporal/efeitos dos fármacos , Negro ou Afro-Americano , Atitude , Método Duplo-Cego , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Estimulação Luminosa , Lobo Temporal/fisiologia , População Branca , Adulto JovemRESUMO
A study was conducted to explore whether participants in Northern Ireland attend to, and process information about, different group members as a function of a single dimension of category membership (religion) or as a function of additional and/or alternative bases for group membership. Utilizing a bogus 'newspaper story' paradigm, we explored whether participants would differentially recall target attributes as a function of two dimensions of category membership. Findings from this recall measure suggested that information concerning ingroup and outgroup members was processed as an interactive function of both religion and gender intergroup dimensions. Religion was only used to guide processing of more specific information if the story character was also an outgroup member on the gender dimension. These findings suggest a complex pattern of intergroup representation in the processing of group-relevant information in the Northern Irish context.
Assuntos
Psicologia Social , Identificação Social , Percepção Social , Adulto , Análise de Variância , Feminino , Humanos , Rememoração Mental , Irlanda do Norte , Política , Religião e PsicologiaRESUMO
This experiment examined the effects of pattern of disconfirming information (concentrated vs. dispersed) and processing instructions (focus on similarities vs. differences vs. control) on stereotype change. If subtyping and perceived typicality are central to the stereotype change process, then processing instructions designed to affect these processes should affect stereotyping. There was lower stereotyping when perceivers focused on similarities between group members, and after exposure to a dispersed pattern of disconfirming information. Only the main effect of pattern was mediated by the perceived typicality of disconfirmers, but not by an index of subtyping based on clustering of information from disconfirmers in recall. Results support a model of stereotype change in terms of the impact of disconfirming group members who are also seen as typical of the group; subtyping of extreme disconfirmers may work in parallel, or later, and contribute to the long-term maintenance of a stereotype.
Assuntos
Atitude , Processos Grupais , Estereotipagem , Adulto , Análise de Variância , Dissonância Cognitiva , Feminino , Humanos , Masculino , Modelos Psicológicos , Mudança SocialRESUMO
Distinctions are made between global and specific, personal and social, and trait and state self-esteem, and these are used to structure a review of over 40 studies concerning social identity theory's hypothesis that (a) intergroup discrimination elevates self-esteem and (b) low self-esteem motivates discrimination. It is observed that researchers have tended to employ measures of global personal trait self-esteem in their investigations of this self-esteem hypothesis, and it is argued that measures of specific social state self-esteem are more consistent with social identity theory's assumptions. Although no convincing evidence is found for the self-esteem hypothesis in its full and unqualified form, it is argued that this is due to a lack of specificity in its formulation and it is suggested that a more qualified and specific version of the hypothesis may be more appropriate.
RESUMO
Two studies explored 6 models of crossed categorization. In Experiment 1, Muslims (majority) and Hindus (minority) in Bangladesh evaluated 1 of 4 target groups created by crossing religion (Hindu or Muslim) and nationality (Bangladeshi or Indian) and then rated the target group's perceived variability. Experiment 2 was an extension of the research, including new measures. Both studies showed additive effects of religion and nationality, as predicted by 3 models, a strong effect of category dominance for religion, and out-group homogeneity only when the religious in-group was the dominant and majority group in its country. Experiment 2 also showed a significant relationship between discrimination based on religion and self-esteem and marginal support for the hierarchical ordering model. When and how specific models of crossed categorization might operate in different intergroup contexts are discussed.
Assuntos
Preconceito , Autoimagem , Identificação Social , Percepção Social , Adulto , Feminino , Hierarquia Social , Humanos , Masculino , Projetos Piloto , Religião e PsicologiaRESUMO
This paper evaluates the impact of Police-Schools Liaison on young people's views and attitudes about the police and offending. It reports the first, large-scale, independent evaluation of this social intervention. The evaluation (based on 1245 secondary-school pupils) compares views of the police in schools with (target) and without (control) a full-time Schools Liaison Officer (SLO). Although attitudes to the police are marginally positive, they become less so over one year. There is no evidence that Schools Liaison input into the target schools slows or halts this decline, or that it affects perceptions of the seriousness of offences, and the likelihood of identification associated with crime. This weak impact is, at least in part, attributable to the low reported rates of direct contact, and the judged atypicality of the SLO. Target-school pupils judged their SLO positively, but as distinct from the 'police in general'. Their view of the SLO had a direct impact on their liking of the police in general, but there was no effect for contact. We conclude that Police-Schools Liaison has only limited positive effects, as predicted from critiques of the traditional 'contact hypothesis'.
Assuntos
Atitude , Psicologia do Adolescente , Controle Social Formal , Estereotipagem , Adolescente , Psicologia Criminal , Inglaterra , Feminino , Humanos , Masculino , Projetos PilotoRESUMO
The present study investigated intergroup bias in achievement attributions in a sample of 62 German and 55 Turkish pupils (aged 15 years) in the Federal Republic of Germany. The design was 2 x 2 x 2 x 3 (Ethnic Group x Outgroup Prejudice x Outcome x Stimulus) with repeated measures on the last two factors. Subjects attributed examination performance to ability, effort, luck, and task difficulty. Intergroup bias was limited to German pupils, who attributed failure of an ingroup member or self more to bad luck than they did that of an outgroup member. Turkish pupils acted more in terms of self than ingroup, attributing the success of another Turkish child more to good luck than they did that of self or an outgroup member. They also failed to distinguish clearly between success and failure in their task attributions. Results are discussed in terms of the inventive nature of explanations for ability-linked performance and the motivational consequences of causal attributions.
Assuntos
Logro , Comparação Transcultural , Controle Interno-Externo , Preconceito , Autoimagem , Criança , Feminino , Alemanha Ocidental , Humanos , Masculino , Turquia/etnologiaRESUMO
This study investigated the hypothesis that stress-inducing life experiences and the personality factors of external locus of control and tendency to repress emotion are relevant in the aetiology of cancer. Fifty cancer patients scored higher than 50 matched controls on a life-events scale (especially negative events), but were found to be lower on repression of emotion. There was no difference between groups on locus of control.
Assuntos
Controle Interno-Externo , Acontecimentos que Mudam a Vida , Neoplasias/psicologia , Repressão-Sensibilização , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes de Personalidade , Fatores de RiscoAssuntos
Controle Interno-Externo , Prisioneiros/psicologia , Violência , Adulto , Cognição , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
Personal construct theory and repertory grid methodology were applied to a study of psychological change experienced by a sample of ten neurotic depressives and their matched controls during short-term hospitalization. All subjects completed a repertory grid and the Zung depression scale on admission to hospital. Depressives were characterized by lower self-esteem, more negative social perception and higher scores on the Zung scale. Both measures were repeated at the time of discharge from hospital. Depressives showed a significant reduction in depressive mood, more positive social perception, and a change in th construing of the self; controls showed no changes. It is argued that the use of a quantitative assessment technique reinforced by a theoretical framework results in a more refined understanding of psychological change.