Incompleteness and the Halting Problem

Studia Logica - We present an abstract framework in which we give simple proofs for Gödel’s First and Second Incompleteness Theorems and obtain, as consequences, Davis’,...     

Encoding Modal Logics in Logical Frameworks

We present and discuss various formalizations of Modal Logics in Logical Frameworks based on Type Theories. We consider both Hilbert- and Natural Deduction-style proof systems for representing both truth (local) and validity (global) consequence relations for various Modal Logics. We introduce several techniques for encoding the structural peculiarities of necessitation rules, in the typed -calculus metalanguage of the Logical Frameworks. These formalizations yield readily proof-editors for Modal Logics when implemented in Proof Development Environments, such as Coq or LEGO.     

Political accountability,public constitution of recent past and the collective memory of socio‐political events: A discursive analysis

This paper presents a discursive analysis of a political news interview as a site for the interactional organization of the public constitution of recent past. In a context of commemoration and finding out the truth about the past, the focus is on how the collective memory of socio‐political events and political accountability is managed and what discursive practices representatives of nation‐states draw upon to understand and construct ideological representations of socio‐political events, namely the Romanian ‘revolution’ of 1989. The analysis shows how the possibility versus the actuality of knowing the truth about the events, (political) accountability and stake for actions are discussed, framed and given significance by constituting the ‘events’ of 1989 as ‘revolution’. The analysis further reveals how this ascribed categorial meaning is used by the interviewee as background for delegitimizing critical voices and sidestepping responsibility for past actions and knowing the truth. Social and community psychologists can learn more about how individuals and communities construct ideological versions of socio‐political events by considering the interplay between questions of political accountability and arguments over the meaning of political categories, and engaging with the accounting practices in which the meaning of socio‐political events is being negotiated by members of society Copyright © 2010 John Wiley & Sons, Ltd.     

Are Psychiatric Residents Still Interested in Psychoanalysis? A Brief Report

In spite of the efficacy of the psychodynamic psychotherapies, the number of young psychiatric residents interested in psychodynamic therapies is decreasing. Our psychoanalytical group, Genden (Genève-Denver), explored the possible reasons for psychiatric residents' hesitation to get psychoanalytic training. Five psychoanalytical psychotherapists met weekly for a year in order to debate that question, focusing on personal feedbacks from all of our 100 residents in psychiatry working with us for at least 4 years. Following the residents' responses, our focus group proposed ten commonsense feedbacks for psychoanalysts regarding stimulating young psychiatric residents' interest in psychoanalytic approaches.     

Specific Phobia in Youth: Phenomenology and Psychological Characteristics

Sociodemographic and psychological characteristics of 62 youth with animal and natural environment types of specific phobia were examined in a treatment-seeking sample. Differences due to age, sex, ethnicity, family structure, and family socioeconomic status were not found between youth with the two types of specific phobia. Moreover, differences were not obtained between the two groups in the clinical severity of their phobias, the perceived dangerousness of the feared outcomes associated with their phobias, the perceived levels of coping with their phobias, or overall fearfulness. However, differences between youth with the two types of specific phobias were found on somatic/anxious symptoms, depressive symptoms, and life satisfaction. In addition, differences were noted on withdrawn, somatic complaints, anxious/depressed symptoms, and social problems as reported by the mothers of these youngsters. Finally, differences in the percent of co-occurring anxiety disorders between youth with the two types of specific phobia were found. On all of the domains in which differences were found, youth with the natural environment type fared more poorly than those with the animal type. These findings converge with those obtained in treatment studies which indicate that youth with the natural environment type are more difficult to treat than youth with the animal type.     

Put yourself in my wheelchair: Perspective-taking can reduce prejudice toward people with disabilities and other stigmatized groups

This study aimed to compare perspective-taking with a hypothetical target and perspective-taking occurring during a real interaction with an outgroup member in reducing prejudice toward people with disabilities and other groups (e.g., immigrants, homosexual people), via increased empathy. We adopted an experimental design with two treatment groups (Hypothetical target vs. Real target) and one control group (no intervention), one pretest and two posttest measures. Participants, who were 437 students aged 11–17 years (M = 14.28; SD = 1.17), were randomly assigned to the various conditions on a classroom basis. Perspective-taking was facilitated asking participants to travel in a wheelchair on a path that simulated a real pavement in the presence (or not) of an individual with a motor disability. Findings showed that perspective-taking in the presence of a real target was more effective in reducing prejudice toward people with disabilities than perspective-taking task without encountering an outgroup member. Perspective-taking with a hypothetical target was not sufficient to increase participants' empathy toward people with disabilities, which instead was enhanced when the task was performed at the presence of a real member of that group. Positive effects produced by perspective-taking (with both a hypothetical and a real target) were transferred to immigrants and homosexuals. These findings suggest that, when possible, perspective-taking in the presence of the target, which can improve empathy by favoring a two-way exchange process, is highly recommended to improve attitudes toward different stigmatized groups, not necessarily targeted by the intervention.