Responsibility attribution by groups and individuals: The effects of the interaction episode

Studied the effects of formal and informal interaction styles on the extremity of responsibility attribution judgements by groups. The stimuli were eight scenarios describing typical ‘life dilemmas’, incorporating the manipulation of the following two variables in a 2 × 2 design: (a) the risky-cautious decision taken by the actor in response to the dilemma, and (b) the outcome of the decision (success-failure). Subjects (N = 130) provided judgements about the attributed responsibility of the actor, and their perception of the actor and the situation first as individuals, followed by (a) formal or (b) informal group discussion, leading to consensus judgements. Results showed that group attributions were significantly more extreme than individual attributions, but only following the informal group interaction. The actors' riskiness and success were also significantly related to the size of the extremity shift. The findings are discussed in terms of the importance of the social context and the specific interaction episode in attribution judgements, and the possible implications of the results for such real life decision-making groups as committees and interviewing panels are considered.     

Retrieval dynamics in self-terminated memory search

Attended stimuli are perceived as occurring earlier than unattended stimuli. This phenomenon of prior entry is usually identified by a shift in the point of subjective simultaneity (PSS) in temporal order judgements (TOJs). According to its traditional psychophysical interpretation, the PSS coincides with the perception of simultaneity. This assumption is, however, questionable. Technically, the PSS represents the temporal interval between two stimuli at which the two alternative TOJs are equally likely. Thus it also seems possible that observers perceive not simultaneity, but uncertainty of temporal order. This possibility is supported by prior-entry studies, which find that perception of simultaneity is not very likely at the PSS. The present study tested the percept at the PSS in prior entry, using peripheral cues to orient attention. We found that manipulating attention caused varying temporal perceptions around the PSS. On some occasions observers perceived the two stimuli as simultaneous, but on others they were simply uncertain about the order in which they had been presented. This finding contradicts the implicit assumption of most models of temporal order perception, that perception of simultaneity inevitably results if temporal order cannot be discriminated.     

Audiovisual identity perception from naturally-varying stimuli is driven by visual information

Identity perception often takes place in multimodal settings, where perceivers have access to both visual (face) and auditory (voice) information. Despite this, identity perception is usually studied in unimodal contexts, where face and voice identity perception are modelled independently from one another. In this study, we asked whether and how much auditory and visual information contribute to audiovisual identity perception from naturally-varying stimuli. In a between-subjects design, participants completed an identity sorting task with either dynamic video-only, audio-only or dynamic audiovisual stimuli. In this task, participants were asked to sort multiple, naturally-varying stimuli from three different people by perceived identity. We found that identity perception was more accurate for video-only and audiovisual stimuli compared with audio-only stimuli. Interestingly, there was no difference in accuracy between video-only and audiovisual stimuli. Auditory information nonetheless played a role alongside visual information as audiovisual identity judgements per stimulus could be predicted from both auditory and visual identity judgements, respectively. While the relationship was stronger for visual information and audiovisual information, auditory information still uniquely explained a significant portion of the variance in audiovisual identity judgements. Our findings thus align with previous theoretical and empirical work that proposes that, compared with faces, voices are an important but relatively less salient and a weaker cue to identity perception. We expand on this work to show that, at least in the context of this study, having access to voices in addition to faces does not result in better identity perception accuracy.     

Social representations of drugs,causal judgment and social perception

The aim of this study was to analyse the influence of social representation on both social perceptions and social judgments. In the first stage of this study, 47 drug users and 80 ‘normal’ subjects were asked to respond to a questionnaire about representations of drugs. Three weeks later we contacted the same subjects. They were asked to answer some questions about a fictitious story in which an actor labelled as ‘a drug user’ or ‘a person’ disputed with a trader. Three different social representations of drugs were found. It was shown that these social representations were anchored in different social groups which were defined by their proximity to the world of drugs. Subjects who were themselves drug users shared an accepting or an ambivalent social representation of drugs but they also made the most negative judgements about the causes of a fictitious dispute between a trader and a drug addict. Moreover, these subjects had the most negative perception of the drug addict. Furthermore, some factors which increase the salience of social representations were studied. The effect on social perception and causal attributions of the interaction between social representations, the context and personal involvement in drugs was also shown. Some relations between the theory of social representations and the theories about asymmetrical intergroup relationships are exposed.     

Affective influences on individual and group judgments

Do emotional states influence the social judgments made by groups and individuals? Based on affect-cognition theories and research on group judgmental shifts, we predicted that group discussion will enhance positive mood effects on judgments, but inhibit affectively-based distortions in dysphoric moods. Positive, neutral and negative moods were induced using audiovisual presentations. Individual and group consensus judgments of nine person categories on three judgmental dimensions (evaluation, competence and self-confidence) were obtained in two experimental sessions separated by a two-week interval. Results showed that individuals made more positive judgments when happy, and more negative judgments when sad than did controls. Group discussion resulted in a further polarization of positive judgments, and the attenuation of negative judgments. The findings are interpreted as evidence for the important role affect plays in mediating both individual cognitive processes and interactive social behaviours. The implications of the results for contemporary affect-cognition theories and models of group behaviour are considered.     

The effects of behavioural and cultural expectation cues on the perception of social episodes

The effects of behavioural and cultural expectation cues on the perception of a dyadic encounter were studied, using realistic videotaped interactions as stimuli. Intimate and non-intimate non-verbal interactions and intimate and non-intimate episode definitions were combined in a 2 × 2 design and presented to subjects who rated both information sources separately (N = 20) as well as in congruent and incongruent combinations (N = 48). The contribution of each of these two cues to ratings of the combined episodes was analysed by Frijda's (1969) average relative shift technique, and a multivariate analysis of variance (MANOVA) procedure. Results indicated that behavioural cues dominate perceptions, but this dominance is reduced in incongruent cue combinations, suggesting a weighted averaging strategy. Perceptions of the relationship between the interactants were more resistant to behaviour cue dominance than perceptions of the interaction. An analysis of open-ended accounts by subjects substantiated these findings. The results suggest that cultural expectations of interaction episodes have a salient and non-obvious effect on social perception.     

Implicit theories of relationships: Implications for relationship satisfaction and longevity

The role of implicit theories in romantic relationships was investigated in two studies. People holding a soulmate theory, who believed that finding the right person is most important for a satisfying relationship, were compared to people holding a work–it–out theory, who believed that effort is most important for building a successful relationship. In Study 1, college students (N = 527) completed a set of questionnaires, including measures of relationship theories and functioning within romantic relationships. Approximately 8 months later, a subset of these students (N = 176) completed a second set of questionnaires for Study 1. The implicit theories were highly stable over time (r = .74). For soulmate theorists, feelings that one’s specific partner is ideal predicted relationship satisfaction and relationship longevity to a greater extent than for work–it–out theorists. Whereas Study 1 investigated people’s theories of relationships as ends of a bipolar continuum, a separate study explored people’s theories of relationships as two unipolar dimensions. Findings from Study 2 (N = 266) supported a representation of the theories as two negatively correlated factors, and supported findings from Study 1 highlighting the role of the interaction between the relationship theories and partner fit in predicting relationship satisfaction.     

Why 'Sounds Are Judged Longer Than Lights': Application of a Model of the Internal Clock in Humans

Three experiments, using temporal generalization and verbal estimation methods, studied judgements of duration of auditory (500-Hz tone) and visual (14-cm blue square) stimuli. With both methods, auditory stimuli were judged longer, and less variable, than visual ones. The verbal estimation experiments used stimuli from 77 to 1183 msec in length, and the slope of the function relating mean estimate to real length differed between modalities (but the intercept did not), consistent with the idea that a pacemaker generating duration representations ran faster for auditory than for visual stimuli. The different variability of auditory and visual stimuli was attributed to differential variability in the operation of a switch of a pacemaker-accumulator clock, and experimental datasuggested that such switch effects were separable from changes in pacemaker speed. Overall, the work showed how a clock model consistent with scalar timing theory, the leading account of animal timing, can address an issue derived from the classical literature on human time perception.     

Self‐Enhancement on a Self‐Categorization Leash: Evidence for a Dual‐Process Model of First‐ and Third‐Person Perceptions

Research suggests that first‐ and third‐person perceptions are driven by the motive to self‐enhance and cognitive processes involving the perception of social norms. This article proposes and tests a dual‐process model that predicts an interaction between cognition and motivation. Consistent with the model, Experiment 1 (N = 112) showed that self‐enhancement drove influence judgments when messages were normatively neutral—people reported first‐person perceptions for in‐group‐favoring messages and third‐person perceptions for out‐group‐favoring messages. Experiment 2 (N = 208) showed an additive effect when social norms were also in‐group‐enhancing, but showed a decreased effect when social norms and group‐enhancement were discordant. The findings are hard to reconcile with pure motivational or cognitive explanations, but are consistent with the proposed dual‐process model.     

Episode cognition and personality: A multidimensional analysis

The aim of the present study was to examine the relation between personality variables and the way an individual cognitively represents and interprets various interaction situations. A sample of typical and recurring interaction episodes within a student milieu was first elicited using a free response diary method. In the main study, subjects from the same subcultural milieu were asked to (a) complete a battery of personality assessment measures, including measures of social anxiety and social competence, and (b) indicate their perception of the interaction episodes of the group. Their judgements of the episodes were analyzed using Carroll and Chang's (1970) Individual Differences Multidimensional Scaling (INDSCAL) procedure, indicating that four characteristics, subjective self-confidence, evaluation, seriousness, and involvement defined subjects' implicit view of the episode space. A canonical correlation analysis between the personality measures and each subject's episode cognition weights indicated a significant relation between these two groups of variables. The link between social skills and episode cognition style was further explored by a multiple discriminant analysis of the episode cognition weights of subjects who scored in the top and the bottom third of the sample on a composite social skills measure. The results are interpreted as providing significant support for recent cognitive theories of personality, and the link between episode cognition and personality variables is considered. The role of episode cognition in social skills assessment and therapy is also discussed, with a view toward exploring the relevance of the findings for applied areas.     

Interpersonal perception in cross-group interactions: Challenges and potential solutions

This review provides a framework for theorising about the processes that give rise to interpersonal perception during encounters between two individuals who belong to different groups. Consistent with a dyadic approach, interpersonal perception is considered a function of the unique and combined effects of the perceptions and behaviours of both partners involved in the interaction. A model is presented in which negative expectancies give rise to feelings of anxiety and behavioural displays of anxiety, both of which in turn influence interpersonal judgements. Factors that vary at the level of the perceiver, target, and the interaction are examined as moderators of interpersonal perception. Lastly, given that the study of interpersonal perception within cross-group dyadic encounters is relatively new, several strategies that show promise for improving interpersonal perception are discussed. Turning towards the future this article concludes by discussing how research and theory outside the domain of intergroup relations can be used to develop innovative methods for improving perception processes.     

The relationship between allocentric and egocentric frames of reference and categorical and coordinate spatial information processing

We report two experiments on the relationship between allocentric/egocentric frames of reference and categorical/coordinate spatial relations. Jager and Postma (2003) suggest two theoretical possibilities about their relationship: categorical judgements are better when combined with an allocentric reference frame and coordinate judgements with an egocentric reference frame (interaction hypothesis); allocentric/egocentric and categorical/coordinate form independent dimensions (independence hypothesis). Participants saw stimuli comprising two vertical bars (targets), one above and the other below a horizontal bar. They had to judge whether the targets appeared on the same side (categorical) or at the same distance (coordinate) with respect either to their body-midline (egocentric) or to the centre of the horizontal bar (allocentric). The results from Experiment 1 showed a facilitation in the allocentric and categorical conditions. In line with the independence hypothesis, no interaction effect emerged. To see whether the results were affected by the visual salience of the stimuli, in Experiment 2 the luminance of the horizontal bar was reduced. As a consequence, a significant interaction effect emerged indicating that categorical judgements were more accurate than coordinate ones, and especially so in the allocentric condition. Furthermore, egocentric judgements were as accurate as allocentric ones with a specific improvement when combined with coordinate spatial relations. The data from Experiment 2 showed that the visual salience of stimuli affected the relationship between allocentric/egocentric and categorical/coordinate dimensions. This suggests that the emergence of a selective interaction between the two dimensions may be modulated by the characteristics of the task.     

Stimulus generalization and the peak shift with movement stimuli

Stimulus generalization is suggested as an alternative method for examination of the "novelty" problem in motor learning. These experiments demonstrated that stimulus generalization occurs using simple movements as stimuli. The phenomenon of the "peak shift" in post-discrimination generalization gradients was also examined. The first experiment demonstrated that a peak shift occurred using linear movements as stimuli and that the magnitude of the peak shift increased as the difference between the training stimuli decreased. The second experiment showed similar results when the stimuli consisted of a range of movements rather than single movement length. The final experiment provided evidence that perception of movement length is influenced by the magnitude of an immediately preceding movement. The relevance of these studies to current motor-learning theory is discussed.     

Stimulus Generalization and the Peak Shift with Movement Stimuli

Stimulus generalization is suggested as an alternative method for examination of the “novelty? problem in motor learning. These experiments demonstrated that stimulus generalization occurs using simple movements as stimuli. The phenomenon of the “peak shift? in post-discrimination generalization gradients was also examined. The first experiment demonstrated that a peak shift occurred using linear movements as stimuli and that the magnitude of the peak shift increased as the difference between the training stimuli decreased. The second experiment showed similar results when the stimuli consisted of a range of movements rather than a single movement length. The final experiment provided evidence that perception of movement length is influenced by the magnitude of an immediately preceding movement. The relevance of these studies to current motor-learning theory is discussed.     

Perceptual interactions in a minimalist virtual environment

How in real-life or through the use of technical devices can we recognize the presence of other persons and under what conditions can we differentiate them from objects? In order to approach this question, in the study reported here we explored the most basic conditions necessary for participants to recognize the presence of another person during a perceptual interaction. We created a mini-network of two minimalist devices and investigated whether participants were able to differentiate the perception of another person from the perception of a fixed and a mobile object even when the pattern of sensory stimulation was reduced to a bare minimum. We show that participants can recognize when the all-or-none tactile stimulation they experienced was attributable to an encounter with the other participant's avatar or the mobile object rather than with a fixed object. Participants were also able to establish different strategies in order to favor the situations of mutual perception. Thus, in the minimalist conditions of our experiment, the perception of another intentional subject was not based purely on any particular shape or objective trajectories of displacement; it was also based on properties that are intrinsic to the joint perceptual activity itself.     

How women's sexual orientation guides accuracy of interpersonal judgements of other women

This research examines how women's sexual orientation guides the accuracy of judgements of other women. One hundred ten judges (67 straight and 43 lesbian women) watched videotapes of 9 targets (4 straight and 5 lesbian) and made judgements about the targets' thoughts, emotions, personality, and sexual orientation. Accuracy scores were created for each judge by comparing judgements to criterion data gathered about targets. Straight judges were significantly more accurate at judging thoughts and marginally more accurate at judging emotions compared to lesbian judges. There were no significant differences in judging personality. Straight targets' thoughts and personality were more easily assessed than lesbian targets' while lesbians' emotions were more easily judged than straight targets'. Lesbian judges were more accurate at judging sexual orientation regardless of their tendency to categorize women as lesbian compared to straight judges. Findings support past research on the accurate perception of sexual orientation and contribute to understanding how sexual orientation guides person perception.     

群体卷入模型:理论背景、内容介绍与未来展望

群体卷入模型借鉴社会认同的思想,在群体价值模型、关系模型的基础上发展而来。该模型认为程序公平通过社会认同影响人的心理和行为,模型还概括了程序公平的四个成分,区分了尊敬感和自豪感,以及资源判断和认同判断对行为卷入的不同影响方式。群体卷入模型的提出为解释群体内行为提供了理论依据,拓展了社会认同理论的视角;另一方面,它也需要考虑个体差异的因素,在更加复杂的群体情境和更加广泛的文化背景中进一步验证和完善。     

阈下知觉的加工水平及其发生条件—— 基于视觉掩蔽启动范式的视角

Dehaene等(1998)和Greenwald等(1996)的研究通过在方法上的完善, 为阈下知觉的存在提供了确凿的证据。但是阈下知觉可以达到什么样的深度这一问题尚仍然存在争议, 有研究者认为阈下知觉可以达到语义加工的水平, 而有的研究者认为阈下知觉只是对刺激视觉特征的一种浅层加工, 并形成了一些非语义加工的假说。在以往研究的基础上, 本研究通过完善实验范式, 分别采用图片、字词作为实验材料对阈下知觉的深度和影响因素进行探讨。实验1和实验2立据于阈下非语义加工的各种理论, 为阈下语义加工的存在提供了证据。同时实验2表明, 阈下知觉达到的水平取决于靶子集的大小, 更确切的说取决于被试对靶刺激进行了何种水平的加工。     

Visual perception and gaze control in judging versus producing phase relations

We studied visual perception and gaze control in nine participants while they judged the relative phase between two oscillating stimuli (Experiment 1), and while they moved their hand--and therewith a concurrent feedback signal--in-phase or in antiphase with an oscillating stimulus (Experiment 2). As in previous studies, the mean relative phase judgements in Experiment 1 corresponded to the presented phase relations (0 degree, 45 degrees, 90 degrees, 135 degrees, and 180 degrees), whereas their standard deviations followed an inverted U-function of relative phase. The relative phase judgements were hardly affected by the degree of visibility (fully visible, inner parts occluded, outer parts occluded) and the amplitude (5 degrees, 10 degrees, and 20 degrees) of the stimuli. Stimulus-gaze coupling decreased as relative phase increased, and its variability correlated with that of the relative phase judgements. Taken together, task performance and gaze behaviour suggested that the judgement of relative phase might be flexibly based on different variables, rather than a single variable like relative direction of motion. In Experiment 2, the production of the antiphase relation was less stable than that of the in-phase relation. Performance deteriorated when the outer parts of the signals were occluded and when their amplitudes were reduced. Stimulus-gaze coupling was stronger during in-phase than during antiphase tracking and weaker when the signals were partially occluded and when their amplitudes were reduced. Stimulus-gaze coupling at 0 degrees and 180 degrees was stronger in Experiment 2 than in Experiment 1, suggesting that the visual perception of relative phase may benefit from its active production. Overall, the results clearly indicated that visual perception of relative phase and the corresponding gaze control are strongly task-dependent.