Musical Training,Bilingualism, and Executive Function: A Closer Look at Task Switching and Dual‐Task Performance

This study investigated whether musical training and bilingualism are associated with enhancements in specific components of executive function, namely, task switching and dual‐task performance. Participants (n = 153) belonging to one of four groups (monolingual musician, bilingual musician, bilingual non‐musician, or monolingual non‐musician) were matched on age and socioeconomic status and administered task switching and dual‐task paradigms. Results demonstrated reduced global and local switch costs in musicians compared with non‐musicians, suggesting that musical training can contribute to increased efficiency in the ability to shift flexibly between mental sets. On dual‐task performance, musicians also outperformed non‐musicians. There was neither a cognitive advantage for bilinguals relative to monolinguals, nor an interaction between music and language to suggest additive effects of both types of experience. These findings demonstrate that long‐term musical training is associated with improvements in task switching and dual‐task performance.     

Primacy Effect in Credibility Judgements: The Vulnerability of Verbal Cues to Biased Interpretations

We explored the vulnerability of credibility judgements of written accounts (mediated by their richness in details) to primacy effect. Specifically, we examined whether the order by which two texts were presented affected their credibility judgements. In Experiment 1, participants read two life stories of the same narrator, one rich and the other poor in details, while their presentation order was manipulated. Results showed that participants tended to believe the narrator more when the rich story preceded the poor story than when the presentation order was reversed. In Experiment 2, the richness‐order was manipulated within a single story, and its results revealed that, although participants read stories of equal length, they perceived a story that began in a rich manner as richer than a story that began in a poor manner. Together, results point to the vulnerability of the ‘richness in detail’ indicator to judgemental biases. Copyright © 2013 John Wiley & Sons, Ltd.     

The associations of the Five Factor Model of personality with inflammatory biomarkers: A four-year prospective study

This study evaluated the associations of the Five Factor Model of personality with two inflammation biomarkers, C-reactive protein and fibrinogen, and the possible moderating effects of common health-related behaviors (physical activity and smoking) concurrently and over four years, while adjusting for socio-demographic and health status. Participants were individuals who underwent a health examination at two points of time, T1 (n = 1709) and T2 (n = 923), about four years apart. Regression analyses uncovered positive associations between Neuroticism and Extraversion with two inflammatory biomarkers at baseline (T1) and over time (T2) and increases in their levels over time. Additionally, a synergistic interaction of neuroticism and physical inactivity was associated with higher levels of inflammation biomarkers at both time periods. Openness was negatively associated with inflammation biomarkers at T1 and T2, but not with changes in their levels. No significant associations were found for Agreeableness and Conscientiousness. The results suggest that personality traits might be involved in the inflammatory process both concurrently and over time, and thus indicate a possible mechanism by which personality traits might influence health, especially cardiovascular disease risk.     

Credibility judgments of narratives: language, plausibility, and absorption

Two experiments were conducted in order to find out whether textual features of narratives differentially affect credibility judgments made by judges having different levels of absorption (a disposition associated with rich visual imagination). Participants in both experiments were exposed to a textual narrative and requested to judge whether the narrator actually experienced the event he described in his story. In Experiment 1, the narrative varied in terms of language (literal, figurative) and plausibility (ordinary, anomalous). In Experiment 2, the narrative varied in terms of language only. The participants' perceptions of the plausibility of the story described and the extent to which they were absorbed in reading were measured. The data from both experiments together suggest that the groups applied entirely different criteria in credibility judgments. For high-absorption individuals, their credibility judgment depends on the degree to which the text can be assimilated into their own vivid imagination, whereas for low-absorption individuals it depends mainly on plausibility. That is, high-absorption individuals applied an experiential mental set while judging the credibility of the narrator, whereas low-absorption individuals applied an instrumental mental set. Possible cognitive mechanisms and implications for credibility judgments are discussed.     

Using the model statement to elicit verbal differences between truth tellers and liars amongst Arab interviewees: A partial replication of Leal,Vrij, Deeb,and Jupe (2018)

Leal, Vrij, Deeb, and Jupe (2018) found—with British participants—that a model statement elicited (a) more information and (b) a cue to deceit: After exposure to a model statement, liars reported significantly more peripheral information than truth tellers. We sought to replicate these findings with Arabs living in Israel. Truth tellers and liars reported a stand‐out event that they had (truth tellers) or pretended to have (liars) experienced in the last 2 years. Half of the participants were given a model statement in the second phase of the interview. Replicating Leal et al. (2018a), (a) truth tellers reported more core details than liars initially and (b) a model statement resulted in more additional core and peripheral details in the second phase of the interview. Unlike in Leal et al. (2018a), a model statement did not have a differential effect on truth tellers in the current experiment.     

Education-stratified base-rate information on discrepancy scores within and between the Wechsler Adult Intelligence Scale--Third Edition and the Wechsler Memory Scale--Third Edition

The Wechsler Adult Intelligence Scale--Third Edition (WAIS-III; D. Wechsler, 1997a) and the Wechsler Memory Scale--Third Edition (WMS-III; D. Wechsler, 1997b) are 2 of the most frequently used measures in psychology and neuropsychology. To facilitate the diagnostic use of these measures in the clinical decision-making process, this article provides information on education-stratified, directional prevalence rates (i.e., base rates) of discrepancy scores between the major index scores for the WAIS-III, the WMS-III, and between the WAIS-III and WMS-III. To illustrate how such base-rate data can be clinically used, this article reviews the relative risk (i.e., odds ratio) of empirically defined "rare" cognitive deficits in 2 of the clinical samples presented in the WAIS-III--WMS-III Technical Manual (The Psychological Corporation, 1997).     

Using the Verifiability lie Detection Approach in an Insurance Claim Setting

In this experiment, we tested the verifiability approach in an insurance claim setting. Core of the verifiability approach is that truth tellers give more details that can be verified than liars. Fifty undergraduate students took part, who produced true and false insurance claim statements related to theft, loss, or damage. These statements were coded in terms of verifiability (the number of details that could be checked by an investigator) and witness factors (friends, police, other officials and CCTV cameras). Truth tellers provided more verifiable details than liars and liars provided more unverifiable details than truth tellers. In addition, truth tellers (versus liars) more frequently informed their friends about the incident or referred to CCTV footage of the incident. The potential and limitations of using the verifiability approach in insurance settings are discussed. Copyright © 2016 John Wiley & Sons, Ltd.     

Please be Honest and Provide Evidence: Deterrents of Deception in an Online Insurance Fraud Context

The present experiment examined whether people could be deterred from lying in an online insurance claim setting. A total of 96 participants were asked to submit a theft insurance claim. Reflecting real life, submitting a claim that went beyond the actual costs of the stolen items was associated with advantages and disadvantages. Two deterrence factors were introduced: asking claimants to provide evidence that they actually owned the stolen items (Evidence Instruction, often used by insurers) and asking participants to read out before starting to submit the claim that they will be truthful (Honesty Statement, not often used by insurers). We also examined at what stage of the interview claimants embedded their lies in their otherwise truthful stories. The honesty statement but not the evidence instruction made claimants more honest, and participants lied more as the interview progressed. © 2016 The Authors Applied Cognitive Psychology Published by John Wiley & Sons Ltd.     

The shape of facial features and the spacing among them generate similar inversion effects: A reply to

It is often argued that picture-plane face inversion impairs discrimination of the spacing among face features to a greater extent than the identity of the facial features. However, several recent studies have reported similar inversion effects for both types of face manipulations. In a recent review, Rossion (2008) claimed that similar inversion effects for spacing and features are due to methodological and conceptual shortcomings and that data still support the idea that inversion impairs the discrimination of features less than that of the spacing among them. Here I will claim that when facial features differ primarily in shape, the effect of inversion on features is not smaller than the one on spacing. It is when color/contrast information is added to facial features that the inversion effect on features decreases. This obvious observation accounts for the discrepancy in the literature and suggests that the large inversion effect that was found for features that differ in shape is not a methodological artifact. These findings together with other data that are discussed are consistent with the idea that the shape of facial features and the spacing among them are integrated rather than dissociated in the holistic representation of faces.