Neurofunctional correlates of personality traits in relapsing-remitting multiple sclerosis: An fMRI study

Extraversion and Neuroticism are two fundamental dimensions of human personality that influence cognitive functioning in healthy subjects. Little is known about personality changes that may occur in patients with multiple sclerosis (MS) nor about, in particular, their neurofunctional basis. The aim of this study is to determine the impact of personality characteristics on brain activity in patients with MS. Eighteen patients with clinically definite relapsing-remitting MS without any evidence of psychiatric or cognitive disorders and thirteen healthy controls matched for age, gender and education were investigated using functional magnetic resonance imaging (fMRI) during the execution of an “n-back” task. No differences were detected on the behavioral tests between the two groups, although the MS patients had lower total IQ and showed a trend towards higher Extraversion and Neuroticism scores than did the controls. fMRI analyses demonstrated that Extraversion scores were positively associated with brain activity in the fronto-parietal network including the superior parietal lobule and dorsolateral prefrontal cortex in both groups during the high load condition of the n-back task. Given the overlapping neural systems found in the two groups, we suggest that the neural activity associated with specific personality dimension is a neurophysiological characteristic preserved in patients with MS at an early stage in the course of their disease.     

Let there be no mistake! On assessment mode and the transference effect in social perception

We examined the possibility that assessment regulatory mode orientation affects the tendency to exhibit transference effects in social perception. Based on a social cognitive methodological paradigm devised by Andersen and colleagues [e.g., Andersen, Glassman, Chen, & Cole, 1996], we find that the transference effect is more pronounced when individuals’ (chronic) assessment orientation is low (vs. high). These results suggest that transference is more likely to occur when less attention is directed towards the target of perception.     

The Net in the Park

Ubiquitous Computing, Pervasive Computing, Physical Computing, Everyware, Tangible User Interface, and the Internet of Things all share the same viewpoint—a viewpoint that sees computers, phones, and game consoles as no longer being the only devices in our environment deemed worthy to embody computation and be connected. Each of these approaches focuses on slightly different aspects of the features and potentialities of the enabling technologies (i.e., Physical Computing focuses on the growing power of microcontrollers; IOT on the increasing influence of tagging systems; Everyware on the pervasiveness of the web through wired and wireless connections, etc.) We understand and place more emphasis on the similarities then the differences among these approaches, and at the same time, we try to address specific human activity issues by exploiting these new enabling technologies and visions. In the paper, we present a project, Wi-roni, that addresses two issues: in-person communication and the added value of being in a given location when accessing a given content. To this end, we considered in some detail the possibilities of three of these enabling technologies: ultrasound sensors, MEMS, and mash-up of Internet application. These technologies were chosen based on the nature of the human activity, and not vice versa. In Wi-roni, an Urban Architecture project located in the La Gora public park in Monteroni d'Arbia, a small village in the province of Siena (Italy), we developed two interconnect solutions: Wi-wave, a column for accessing web audio content in public spaces, and Wi-swing, a children’s swing that tells stories while swinging. These devices represent both the concrete grounds from which to begin to address the abovementioned human activity issues and the playground in which to explore the new, emerging interaction modalities that the enabling technologies could allow.     

Olfactory fear conditioning paradigm in rats: Effects of midazolam,propranolol or scopolamine

In rodents, fear conditioned responses are more pronounced toward olfactory stimulus, since olfaction is a dominant sense in these subjects. The present study was outlined to investigate if the association between coffee odor (CS1) and electrical footshock (US) would be an effective model for the study of fear-induced behavior and whether compounds used in humans for emotional-related disorders such as midazolam, propranolol, or scopolamine, applied during the different stages of fear conditioning (acquisition, consolidation and expression), affect the defensive responses to both, the olfactory CS1, and the context (CS2) where the CS1 had been presented (second order conditioning). The results revealed that five pairings between coffee odor (CS1) and electrical footshock (US) were able to elicit consistent defensive responses and a second order conditioning to the context (CS2). Midazolam (0.375–0.5 mg/kg; i.p.) treatment was able to interfere with the CS1–US association and with the consolidation of the aversive information. The propranolol (5–10 mg/kg; i.p.) treatment interfered with the CS1–US association, with the retention of fear memory and with the CS1–CS2 association. Propranolol also attenuated the expression of conditioned fear responses when applied before the CS1 test session. Scopolamine (0.6–1.2 mg/kg; i.p.) treatment impaired the acquisition of CS1–US and CS1–CS2 associations, and also disrupted the expression of conditioned fear responses when injected prior to the CS1 test session. These findings have pointed out the usefulness for the olfactory fear conditioning paradigm to investigate drug effects on the acquisition, consolidation and expression of fear conditioned responses.     

Risk behaviour and mental workload: Multimodal assessment techniques applied to motorbike riding simulation

We present data from an ongoing research project on the cognitive, emotional and neuropsychological basis of risk behaviour. The main aim of the project is to build a model of risk behaviour so that if we know certain cognitive, behavioural and emotional variables, we will be able to predict decisions made in the face of uncertainty and risk, with the final goal of designing programs for evaluating, preventing and controlling risk behaviour. The objective of the present study was to look for individual differences in hazard perception during a static riding simulation and their relationship with mental workload. We used a multidimensional methodology, including behavioural, subjective and physiological data. The behavioural measures were obtained in a static riding simulation during eight hazard situations. We evaluated whether eye activity measures correlated with cognitive workload and different types of risky behaviours. Eye movement parameters were measured using a video-based eye tracking system. We found that risk-prone individuals showed specific patterns of risky behaviours and that peak of saccadic velocity and subjective mental workload indexes were both reliable indicators of risk proneness. Mental workload was higher for participants showing attitudes to risk behaviours probably because of a lack of conscious awareness of specific cues indicating dangerous scenarios.     

Climatic warmth and national wealth: some culture‐level determinants of national character stereotypes

National character stereotypes are widely shared, but do not reflect assessed levels of personality traits. In this article we present data illustrating the divergence of stereotypes and assessed personality traits in North and South Italy, test hypotheses about the associations of temperature and national wealth with national character stereotypes in 49 cultures, and explore possible links to national values and beliefs. Results suggest that warmth and wealth are common determinants of national stereotypes, but that there are also idiosyncratic influences on the perceptions of individual nations. Published in 2007 by John Wiley & Sons, Ltd.     

Biassed processing of persuasive information: on the functional equivalence of cues and message arguments

Research on persuasion has shown that inferences based on heuristic or peripheral cues can bias the subsequent processing of persuasive messages. Two studies (total N = 296) examined the additional possibilities that a message argument can serve as a biassing factor and cue‐related information can serve as the target of processing bias. It was demonstrated that a message argument can bias (a) the processing of subsequent other message arguments (Study 1) and (b) the processing of subsequent cue information (Study 2). Results are discussed within dual‐process models and the recently developed unimodel of persuasion. Copyright © 2007 John Wiley & Sons, Ltd.     

Preexposure effects in the spatial domain: Dissociation between latent inhibition and perceptual learning

In 4 experiments, rats were given intermixed or blocked preexposure to an array of landmarks that subsequently defined the location of a hidden goal in a Morris pool task. Previous research has shown that intermixed preexposure to pairs of adjacent landmarks retards learning whereas preexposure to individual landmarks facilitates subsequent learning (J. Prados, V. D. Chamizo, & N. J. Mackintosh, 1999). Accordingly, in Experiment 1, intermixed and blocked preexposure to pairs of adjacent landmarks was found to retard learning. In Experiment 2, however, a scheduling effect was found: Rats given intermixed preexposure to the individual landmarks learned faster than rats given blocked or no preexposure. Experiment 3 showed that intermixed (but not blocked) preexposure to pairs of landmarks resulted in a facilitatory effect when preexposure and test were carried out in different contexts. Experiment 4 replicated within a single experiment the main results observed in Experiments 1 and 3. This pattern of results suggests that intermixed preexposure engages learning processes other than latent inhibition that facilitate subsequent learning of the navigation task.     

The supervisory field and projective identification1

Taking as their starting point the Baranger and Baranger model of the ‘psychoanalytic field’, the authors extend the notion of intersubjectivity in the analytic relationship to the supervision process. They use a practical example of a supervision to show the development of what they term the ‘supervisory field’, formed from the superimposition of the two fields of analyst‐patient and supervisor‐supervisee. They emphasize the interplay of projective identifications with objects emanating from the inner world of the patient that are relived in the analytic relationship and transposed to the supervisory field. They believe that the concept of the ‘supervisory field’ contributes to a deeper understanding of the unconscious processes occurring in the mind of analysand, supervisee and supervisor during supervision, particularly regarding the identification, comprehension and resolution of persistent disturbances in the supervisory process.     

Charismatic leadership and organizational outcomes: The mediating role of employees' work-group identification

This research examines the degree of employees' identification with the work-group as a function of charismatic leadership (e.g., Conger & Kanungo, 1998 1998) and the mediating role of work-group identification (Van Knippenberg & Van Shie, 2000 2000) in the relationship between charismatic style and different work outcomes. Thus, the general aim was to analyse leadership and work outcomes as they are associated to social identification processes, referring both to recent developments of charismatic leadership models and to the recent developments of the social identity analysis applied to the workplace (see Abrams & Hogg, 2001 2001). Two field surveys were conducted using 200 Italian public and private sector employees (two different working organizations). Two questionnaires were designed in order to collect data. They included different measures of charismatic leadership derived by the literature (e.g., the Conger-Kanungo Charismatic Leadership Questionnaire; Conger & Kanungo, 1994 1994, 1998 1998, for Study 2), a scale to assess the degree of identification with the work-group (Van Knippenberg & Van Shie, 2000 2000), and some scales to measure the different outcomes considered (e.g., Brown and Leigh's effort measure, 1996 1996; Mobley's turnover intention measure, 1977 1977). As predicted, results of Study 1 revealed that charismatic leadership was positively related to work-group identification, and employees' work effort was positively related to work-group identification. Work-group identification also mediates relationship between charismatic leadership and work effort. Results of Study 2 replicated the positive association between charismatic leadership and employees' work-group identification; work-group identification is also associated with their job involvement, job satisfaction, performance, and turnover intention. The same mediating role of work-group identification between charismatic leadership and the criteria mentioned above was found. Underlying mechanisms as well as implications are discussed.