The similarity hypothesis of déjà vu: On the relationship between frequency of real-life déjà vu experiences and sensitivity to configural resemblance

Prior research has suggested that configural resemblance between a current scene and a previously experienced but forgotten one may trigger déjà vu experiences. The present study examined whether there is a relationship between the frequency of actual déjé vu experiences, measured by questionnaires, and sensitivity to a configural resemblance between past and present events, measured by questionnaires, and between two scenes presented simultaneously in the laboratory. We measured familiarity ratings and remember–know judgements of several scenes. Some scenes had been previously presented, some were similar to previously presented scenes and the others were dissimilar. Déjà vu tendencies were significantly correlated with sensitivity to similarity in the measured questionnaires and in the laboratory, as well as to a feeling of familiarity for similar scenes. In this study, we found for the first time that people who more frequently experience déjé vu states were also more likely to regard themselves as sensitive to similarity and more likely to notice the similarity between two scenes in the laboratory.     

The different representational frameworks underpinning abstract and concrete knowledge: Evidence from odd-one-out judgements

Recent evidence from neuropsychological investigations of individuals with global aphasia and deep or deep-phonological dyslexia suggests that abstract and concrete concepts are underpinned by qualitatively different representational frameworks. Abstract words are represented primarily by their association to other words, whilst concrete words are represented primarily by their taxonomic similarity to one another. In the current study, we present the first evidence for this association/similarity distinction to be gathered from healthy research participants. Using a semantic odd-one-out task, it is shown that normal participants identify associative connections more quickly than similarity-based connections when processing abstract words, but that the pattern is reversed for concrete words. It is also demonstrated that the typical concrete-word advantage observed in many cognitive tasks is abolished and even reversed when participants have to comprehend the semantic associations between words. The data provide converging evidence for the different representational frameworks hypothesis and suggest that claims based on information from previous neuropsychological investigations can be generalized to normal cognition.     

A Brief Delay Decreases Perceived Similarity and Improves Discrimination

A same-different discrimination between the colors of 2 halves of a circle was poorer when the halves were viewed simultaneously than when the delay between viewing them was 33 ms. The simultaneous discrimination also produced a poor performance on different stimuli relative to same stimuli in comparison to the successive discrimination. Poor-on-different performance should indicate high perceived similarity. The simultaneous colors were also judged as more similar. The delay did not alter the physical similarity of the colors. Thus, the delay may have decreased assimilation (perceived similarity) and thereby improved discrimination, in support of the hypothesis that perceived similarity frequently affects discrimination.     

The many faces of assumed similarity in perceptions of personality

We propose that most coefficients of assumed similarity in acquaintance ratings are based on actual similarity between observer and target rather than any bias to project self onto other. We assessed assumed similarity, actual similarity, and rater accuracy in 62 university roommate dyads who rated each other on 74 personality-related variables. Our findings indicate that our roommates (a) were actually alike on many variables, (b) knew this, rather than assumed it, and (c) applied this knowledge to enhance the accuracy of their ratings. We outline a model of judgment that urges three distinct concepts: true assumed similarity, known similarity, and spurious similarity. We conclude that personality ratings among acquaintances reflecting true assumed similarity are probably rare.     

The effects of culture and gender on perceived self-other similarity in personality

Gender and culture may influence individuals’ perceptions of their similarity to others. 391,454 individuals from 20 countries rated their own personality traits and the personality traits they attribute to other people in general. A multilevel analysis on distinctive profile similarity (Furr, 2008) demonstrated that both gender and culture play a role in perceived self-other similarity. Specifically, women and those from highly collectivistic cultures saw themselves as more similar to others. Country-level analysis based on self-other similarity correlations (e.g., Srivastava, Guglielmo, & Beer, 2010) within each country revealed that cultural assertiveness uniquely predicted this assumed similarity. The findings shed light on how people construe themselves in relation to others and contribute to the understanding of personality within cultural contexts.     

The magic of collective emotional intelligence in learning groups: No guys needed for the spell!

Using a cross‐lagged design, the present study tests an integrative model of emergent collective emotions in learning groups. Our results indicate that the percentage of women in the group fosters the emergence of collective emotional intelligence, which in turn stimulates social integration within groups (increases group cohesion and reduces relationship conflict) and the associated affective similarity, with beneficial effects for group effectiveness.     

Culture and decision‐making: Investigating cultural variations in the East Asian and North American online decision‐making processes

Research in cross‐cultural psychology suggests that East Asians hold holistic thinking styles whereas North Americans hold analytic thinking styles. The present study examines the influence of cultural thinking styles on the online decision‐making processes for Hong Kong Chinese and European Canadians, with and without time constraints. We investigated the online decision‐making processes in terms of (1) information search speed, (2) quantity of information used, and (3) type of information used. Results show that, without time constraints, Hong Kong Chinese, compared to European Canadians, spent less time on decisions and parsed through information more efficiently, and Hong Kong Chinese attended to both important and less important information, whereas European Canadians selectively focused on important information. No cultural differences were found in the quantity of information used. When under time constraints, all cultural variations disappeared. The dynamics of cultural differences and similarities in decision‐making are discussed.     

师徒间相似性对师傅指导意愿的影响

师徒相似性是师徒配对研究的重要内容。研究以156名大学生为被试,采用实验法考察了师徒之间性别和种族这两种浅层的相似性以及师徒间人格特征这种深层的相似性对师傅指导徒弟意愿的影响。实验中被试承担师傅的角色,对不同性别、种族和人格特征的徒弟做出评价。实验结果表明师徒间的性别、种族和人格的相似性显著影响师傅的指导意愿。师傅对与自己具有相似性别、种族和人格的徒弟的指导意愿显著高于与自己不相似的徒弟。研究结果支持了相似—吸引理论对师徒关系研究的解释力,对我国现代组织中师徒制的实践具有借鉴意义。     

Detecting deception through small talk and comparable truth baselines

The present experiment investigates similarities in participants' nonverbal and verbal behaviours when responding to baseline and investigative questions, comparing two different types of baselines. Police literature suggests to obtain a baseline through small talk, whereas academic literature underlines the importance of baseline and investigative themes to be comparable. First, a baseline was obtained (either small talk or comparable), then the investigative questioning started. During the investigative questioning, participants either truthfully reported a set of actions they had actually performed or lied about them. Findings revealed that truth tellers and liars in the small talk condition did not differ in their level of similarity when responding to the baseline and investigative questions. In the comparable truth condition, levels of verbal similarity between the baseline and investigative questions were higher for truth tellers than for liars, but only for one variable: spatial detail. Results therefore showed that a small talk baseline should not be used to assess interviewees' credibility, and that a comparable truth baseline, although better than a small talk baseline, is still problematic.     

Cognitive–emotional distinctiveness: Separating emotions from non-emotions in the representation of a stressful memory

Current theories on autobiographical memory and recent neurological evidence suggest that emotional and non-emotional features of a memory may be retrieved by separate systems. To test this notion, 207 participants who had experienced the break-up of a significant romantic relationship in the last 12 months completed a Multidimensional Scaling (MDS) procedure in relation to the previous relationship. The resulting MDS model revealed two dimensions: a valence and an emotional/non-emotional dimension. Further, participants who associated a high level of distress with their relationship break-up perceived less dissimilarity between emotional and non-emotional features than participants who associated a low level of distress with their relationship break-up. Theoretical and methodological implications for stress and memory are discussed.