扩展群际接触:观点、机制与展望

扩展群际接触效应指的是如果个体得知内群体成员与外群体成员之间具有友谊关系,可以有效减少个体对外群体的偏见,改善对外群体的态度。群际焦虑、知觉到的内群体/外群体准则、将他人纳入自我、自我表露在扩展群际接触效应中起到中介作用,群体准则的知觉差异性、社会意识态度、内群成员的关系紧密性、与外群体的直接接触程度等在扩展群际接触效应中起到调节作用。未来研究需要关注扩展群际接触效应的动机,比较不同类型群体的扩展群际接触效应,探讨扩展群际接触效应更为长远的社会后果,整合间接群际接触的积极效应。     

Beyond the optimal contact strategy: a reality check for the contact hypothesis

The contact hypothesis proposes that interaction between members of different groups reduces intergroup prejudice if--and only if--certain optimal conditions are present. For over 50 years, research using this framework has explored the boundary conditions for ideal contact and has guided interventions to promote desegregation. Although supporting the contact hypothesis in principle, the authors critique some research practices that have come to dominate the field: (a) the prioritizing of the study of interactions occurring under rarefied conditions, (b) the reformulation of lay understandings of contact in terms of a generic typology of ideal dimensions, and (c) the use of shifts in personal prejudice as the primary measure of outcome. The authors argue that these practices have limited the contact hypothesis both as an explanation of the intergroup dynamics of desegregation and as a framework for promoting social psychological change. In so arguing, the authors look toward a complementary program of research on contact and desegregation.     

Toward a diversity hypothesis: Multidimensional effects of intergroup contact

The long-standing and important contributions of the contact hypothesis in reducing prejudice in intergroup situations is augmented by the introduction of the diversity hypothesis. The diversity hypothesis argues that the positive consequences of diversity will occur when the following four conditions are met: (a) full participation occurs across all levels of society for membres of diverse ethnic, racial, and cultural groups; (b) the degree of participation approximates an appropriate index of representation for racial and ethnic groups; (c) common purpose across these levels of diversity is created; and (d) cultural identity is valued. The empirical evidence for these conditions and implications for the organizational advantages of diversity are discussed.     

Toward a diversity hypothesis: Multidimensional effects of intergroup contact

The long-standing and important contributions of the contact hypothesis in reducing prejudice in intergroup situations is augmented by the introduction of the diversity hypothesis. The diversity hypothesis argues that the positive consequences of diversity will occur when the following four conditions are met: (a) full participation occurs across all levels of society for membres of diverse ethnic, racial, and cultural groups; (b) the degree of participation approximates an appropriate index of representation for racial and ethnic groups; (c) common purpose across these levels of diversity is created; and (d) cultural identity is valued. The empirical evidence for these conditions and implications for the organizational advantages of diversity are discussed.     

Interracial roommate relationships: an experimental field test of the contact hypothesis

ABSTRACT— This study investigated how automatically activated racial attitudes are affected by relatively long-term interracial relationships. A natural field experiment was conducted in a college dormitory system. Participants were White freshmen who had been randomly assigned to either a White or an African American roommate. Students participated in two sessions during the first 2 and last 2 weeks of their first quarter on campus. During these sessions, they answered questions about their satisfaction and involvement with their roommates and completed an inventory of intergroup anxiety and an implicit measure of racial attitudes. Participants in interracial rooms reported less satisfaction and less involvement with their roommates than did participants in same-race rooms. However, automatically activated racial attitudes and intergroup anxiety improved over time among students in interracial rooms, but not among students in same-race rooms. Thus, the results suggest that interracial roommate relationships, although generally less satisfying and involving than same-race roommate relationships, do produce benefits.     

Compassionate stereotyping of elderly patients by physicians: revising the social contact hypothesis

Departing from previous research on age stereotypes, this study examined degree of contact with elderly patients as a factor affecting age stereotyping by physicians. Included are measures of behavioral intentions as well as more traditional attitudinal measures. A total of 63 rheumatologists completed a brief questionnaire on which they rated a 53- or an 83-year-old target patient on a number of dimensions including psychological adjustment and need for support and information. Patients' age and physicians' degree of contact with elderly patients had few direct effects on physicians' ratings; their interaction, however, yielded a strong and consistent finding: The elderly patient was rated as less adjusted, autonomous, and instrumental and in greater need of support and information by high-contact physicians. These findings suggest that although negative age stereotypes are less prevalent than has previously been indicated, rheumatologists, particularly those who treat elderly patients, may draw on compassionate stereotypes in their care of elderly patients.     

Threaded cognition: an integrated theory of concurrent multitasking

The authors propose the idea of threaded cognition, an integrated theory of concurrent multitasking--that is, performing 2 or more tasks at once. Threaded cognition posits that streams of thought can be represented as threads of processing coordinated by a serial procedural resource and executed across other available resources (e.g., perceptual and motor resources). The theory specifies a parsimonious mechanism that allows for concurrent execution, resource acquisition, and resolution of resource conflicts, without the need for specialized executive processes. By instantiating this mechanism as a computational model, threaded cognition provides explicit predictions of how multitasking behavior can result in interference, or lack thereof, for a given set of tasks. The authors illustrate the theory in model simulations of several representative domains ranging from simple laboratory tasks such as dual-choice tasks to complex real-world domains such as driving and driver distraction.     

The relationships between contact,status and prejudice: An integrated threat theory analysis of Hindu–Muslim relations in India

In the context of Hindu–Muslim relations in India, the present study (N = 87) utilized Integrated Threat Theory (Stephan & Stephan, 2000 ) to examine the mediating roles of intergroup anxiety, realistic and symbolic threats and the moderating role of group membership (Hindu vs. Muslim) in the relationships between cross‐community contact, relative in‐group status and prejudice. Overall, intergroup anxiety and realistic, but not symbolic, threat emerged as proximal predictors of prejudice and partial mediators between the predictor and criterion variables. But these findings were qualified by majority (Hindu) versus minority (Muslim) group membership. As predicted, while symbolic threat was a predictor of prejudice for Hindus, realistic threat was a paramount predictor for Muslims. In‐group status was as a significant predictor for low‐status minority group only. The results are discussed with reference to their potential implications for future research and interventions aimed at improving intergroup relations. Copyright © 2008 John Wiley & Sons, Ltd.     

Adaptation-level theory, opponent process theory, and dispositions: an integrated approach to the stability of job satisfaction

Research suggests that the stability of job satisfaction is partially the result of dispositions (J. J. Connolly & C. Viswesvaran, 2000; C. Dormann & D. Zapf, 2001; T. A. Judge & J. E. Bono, 2001a; T. A. Judge, D. Heller, & M. K. Mount, 2002). Opponent process theory (R. L. Solomon & J. D. Corbit, 1973, 1974) and adaptation-level theory (H. Helson, 1948) are alternative explanations of this stability that explain how environmental effects on job satisfaction dissipate across time. On the basis of an integration of these explanations, the authors propose that dispositions (a) influence employees' equilibrium or adaptation level of job satisfaction, (b) influence employees' sensitivity to workplace events, and (c) influence the speed at which job satisfaction returns to equilibrium after one is exposed to a workplace event. Research and applied implications are discussed.     

Communication theory and the constellation hypothesis of calculation

It is assumed that in translation tasks the brain behaves as an information-processing system for which the time-requirement (t) of a translation is strictly proportional to the information which must be handled in performing it. Writing Q[calc] for the information-requirement of a given calculation, the problem is to define a procedure Q which may be applied to calculations involving various arithmetical operations on numbers of varying magnitudes, such that Q[calc] ≈ k.t. The constant k would then give the information-handling rate.

Experiments with six subjects on seven types of simple addition-sum lead to a definition of Q which satisfies this condition for 25 out of 42 observations. Of the other 17 observations, 14 are accounted for by a modified definition of Q and at least one more on the assumption that “redundant information” may be handled in some cases. The main hypothesis, with these two subsidiary assumptions, accounts well for all observations in a further experiment with four subjects on six types of addition, subtraction and multiplication.

The definition of Q is next generalized by analogy to deal with more complex multiplications. A prediction concerning multiplications of the type [x. log x] is borne out by 11 out of 12 subjects and the subsidiary assumptions are not required. Information-rates found by this rapid method range from 2.07-5.78 binary units of Q[calc] per second (BU/sec.) and there is reason to believe that 1 BU is equivalent to 1 bit.     

An integrated theory of the mind

Adaptive control of thought-rational (ACT-R; J. R. Anderson & C. Lebiere, 1998) has evolved into a theory that consists of multiple modules but also explains how these modules are integrated to produce coherent cognition. The perceptual-motor modules, the goal module, and the declarative memory module are presented as examples of specialized systems in ACT-R. These modules are associated with distinct cortical regions. These modules place chunks in buffers where they can be detected by a production system that responds to patterns of information in the buffers. At any point in time, a single production rule is selected to respond to the current pattern. Subsymbolic processes serve to guide the selection of rules to fire as well as the internal operations of some modules. Much of learning involves tuning of these subsymbolic processes. A number of simple and complex empirical examples are described to illustrate how these modules function singly and in concert.     

Identity and attitudinal reactions to perceptions of inter-group interactions among ethnic migrants: a longitudinal study

This 1-year follow-up study investigated the direct and indirect effects of past, anticipated, and actual experiences of inter-group interactions on the development of national identity and attitudes towards the national majority among ethnic re-migrants (N= 141) from Russia to Finland. According to the results, the quality of past inter-group contact in the pre-migration stage (T(1)) did not directly affect national identification and out-group attitudes in the post-migration stage (T(2)). Instead, the effect of contact quality at T(1) on national identification and out-group attitudes at T(2) was indirect via perceived discrimination and out-group rejection at T(2). In addition, there were two indirect pathways from out-group attitudes at T(1) to national identification and out-group attitudes at T(2), via pleasant contact experiences (further associated with positive out-group attitudes) and via perceived discrimination (further associated with negative attitudes and lower national identification) in the post-migration stage. Anticipated discrimination only had a direct effect on out-group attitudes in the post-migration stage. The results highlight the role of past and anticipated inter-group relations in the formation of post-migration inter-group interactions, which, in turn, are decisive for the formation of national identification and out-group attitudes of re-migrants.     

Social signals: from theory to applications

The Special Issue Editorial introduces the research milieu in which Social Signal Processing originates, by merging computer scientists and social scientists and giving rise to this field in parallel with Human–Computer Interaction, Affective Computing, and Embodied Conversational Agents, all similarly characterized by high interdisciplinarity, stress on multimodality of communication, and the continuous loop from theory to simulation and application. Some frameworks of the cognitive and social processes underlying social signals are identified as reference points (Theory of Mind and Intersubjectivity, mirror neurons, and the ontogenesis and phylogenesis of communication), while three dichotomies (automatic vs. controlled, individualistic vs. intersubjective, and meaning vs. influence) are singled out as leads to navigate within the theoretical and applicative studies presented in the Special Issue.     

Social signals: from theory to applications

The Special Issue Editorial introduces the research milieu in which Social Signal Processing originates, by merging computer scientists and social scientists and giving rise to this field in parallel with Human-Computer Interaction, Affective Computing, and Embodied Conversational Agents, all similarly characterized by high interdisciplinarity, stress on multimodality of communication, and the continuous loop from theory to simulation and application. Some frameworks of the cognitive and social processes underlying social signals are identified as reference points (Theory of Mind and Intersubjectivity, mirror neurons, and the ontogenesis and phylogenesis of communication), while three dichotomies (automatic vs. controlled, individualistic vs. intersubjective, and meaning vs. influence) are singled out as leads to navigate within the theoretical and applicative studies presented in the Special Issue.     

Using integrated theory to explain the movement into juvenile delinquency

Research grounded in labeling, differential association, social learning, and social control theory provides useful information about various phases of the delinquency process. However, none of these theories accounts for the entire delinquency process. Recent work has demonstrated, for example, that social control theory may be more suitable for explaining initial delinquency, whereas labeling theory is more useful in explaining continued delinquency. This paper incorporates theoretical elements of labeling, differential association, social learning, and social control theories into a model that explains both initial and continued delinquency. Analysis of data from three waves of the National Youth Survey provides support for the model and shows that weakened social controls increase opportunities for associating with delinquent peers, learning delinquent behaviors, and committing initial delinquent acts. Initial delinquency increases the likelihood of being observed and negatively labeled by parents. These labels in turn increase the likelihood of future delinquency. These results lend support to arguments for integrated theory in the study of juvenile delinquency.     

A Riemannian geometry theory of human movement: The geodesic synergy hypothesis

Mass-inertia loads on muscles change with posture and with changing mechanical interactions between the body and the environment. The nervous system must anticipate changing mass-inertia loads, especially during fast multi-joint coordinated movements. Riemannian geometry provides a mathematical framework for movement planning that takes these inertial interactions into account. To demonstrate this we introduce the controlled (vs. biomechanical) degrees of freedom of the body as the coordinate system for a configuration space with movements represented as trajectories. This space is not Euclidean. It is endowed at each point with a metric equal to the mass-inertia matrix of the body in that configuration. This warps the space to become Riemannian with curvature at each point determined by the differentials of the mass-inertia at that point. This curvature takes nonlinear mass-inertia interactions into account with lengths, velocities, accelerations and directions of movement trajectories all differing from those in Euclidean space. For newcomers to Riemannian geometry we develop the intuitive groundwork for a Riemannian field theory of human movement encompassing the entire body moving in gravity and in mechanical interaction with the environment. In particular we present a geodesic synergy hypothesis concerning planning of multi-joint coordinated movements to achieve goals with minimal muscular effort.