Psychological Aspects of the Role of Religion in Identity Construction

Religious plurality can generate fears through identity destabilization. Religions offer ressources for coping with fears. On one side, production of stereotypes follows a defensive way. On the other side, claim to be universal help to cross boundaries and to cope with stigmatization, misrecognition and discrimination. Coping strategies combine at least five aspects: community, intimate relationship, rules, construction of identity, and worlview. This article shows how these aspects are intertwined.     

The computational complexity of scenario-based agent verification and design

We first advocate that the AUML (Agent Unified Modeling Language) notation, even in its new version, is not precise enough to adequately describe protocols. This problem was long identified by Harel and we propose to follow his solution: extend sequence diagrams with a “prechart”, i.e. single out the initiation sequence of the protocol. This new notation keeps readability and intuition, but is also technically adequate and is given a formal semantics. It actually is a form of simple temporal logics, equipped with a game-based semantics, which is appropriate for modeling agent-based systems. We then go on to study its complexity. Unsurprisingly, the version with protocol roles is undecidable. The main interesting problem is to synthesize agents that follow the protocol described. Surprisingly, it is undecidable even if we remove roles, alternatives, loops, asynchronous communication, conditions, constraints, negations (already removed in AUML). The complexity of checking whether a society of agents obeys a protocol given in this trivial notation is also surprisingly high: it is PSPACE-complete, like temporal logic, while we show that this simple language is strongly less expressive than temporal logic. Notations in-between have the expected increase in expressiveness, but no increase in complexity. This justifies the use of a language including alternatives, asynchronous communication and conditions, since it increases expressiveness with no cost in complexity.     

Relative category-specific preservation in semantic dementia? Evidence from 35 cases

Category-specific deficits have rarely been reported in semantic dementia (SD). To our knowledge, only four previous studies have documented category-specific deficits, and these have focused on the living versus non-living things contrast rather than on more fine-grained semantic categories. This study aimed to determine whether a category-specific effect could be highlighted by a semantic sorting task administered to 35 SD patients once at baseline and again after 2 years and to 10 Alzheimer’s disease patients (AD). We found a relative preservation of fruit and vegetables only in SD.This relative preservation of fruit and vegetables could be considered with regard to the importance of color knowledge in their discrimination. Indeed, color knowledge retrieval is known to depend on the left posterior fusiform gyrus which is relatively spared in SD. Finally, according to predictions of semantic memory models, our findings best fitted the Devlin and Gonnerman’s computational account.     

Champ et effets de la négation argumentative: contre-argumentation et mise en cause

An argument can be taken as an operation of justification or as the product of this operation. But what about a counter-argument? This article is based on the hypothesis that there exists an operation of argumentative negation, which is both the argumentative and the negative equivalent of the operation of justification. Justification and argumentative negation necessarily act on assertions, for they are active at the level of the epistemic modalities of statements. As an operation, a counter-argument can thus be described, as the application of an argumentative negation; as a product, it can be described as an argument the conclusion of which shows traces of negative modality. Two uses of argumentative negation are distinguished here: counter-argumentation and calling into question. The former can lead only to assertive conclusive statements, but the latter can also lead to directives or commissives. This leads the authors to introduce the notion of pseudo-argument, besides those of argument and counter-argument. It is shown in particular that when a pseudo-argument is rejected, argumentative negation has the effect of making evident an underlying argument. With respect to the latterit functions as a counter-argumentation, whereas with respect to the illocutionary act accomplished by the conclusive statement, it functions as a calling into question of a condition of satisfaction for this act. This article also defines certain characteristics of argument, proposes criteria for identifying argumentative negation in polemical conversations, and distinguishes four modes of counter-argumentation.     

Language evolution as a Darwinian process: computational studies

This paper presents computational experiments that illustrate how one can precisely conceptualize language evolution as a Darwinian process. We show that there is potentially a wide diversity of replicating units and replication mechanisms involved in language evolution. Computational experiments allow us to study systemic properties coming out of populations of linguistic replicators: linguistic replicators can adapt to specific external environments; they evolve under the pressure of the cognitive constraints of their hosts, as well as under the functional pressure of communication for which they are used; one can observe neutral drift; coalitions of replicators may appear, forming higher level groups which can themselves become subject to competition and selection.

Assessing the Structural and Psychometric Properties of a New Personality Measure for Use With Military Personnel in the French Armed Forces

We evaluated the measurement properties of a new personality scale for use with military personnel in the French Navy (N = 1,266). Principal components analyses indicated a five-factor structure assessing emotional stability, ascendancy, openness, agreeableness, and conscientiousness. Each factor comprised two facets that included 7 items per facet for a total of 70 items. Reliability analyses indicate that the factors and corresponding facets were internally consistent and temporally stable. Validity analyses indicate that the TAMI-P was significantly correlated with comparable measures of personality—correlations ranged from .53 to .68 with the Revised NEO Personality Inventory and the Big Five Questionnaire.     

Updating process of internal model of action as assessed from motor and postural strategies in young adults

Internal models are constantly updated based on the actions and experiences of a person in the world. In the present study, we proposed to assess the updating process of internal models of action by providing new environmental constraints for motor planning, postural control, and execution processes in daily tasks such as STS and BTS. STS and BTS tasks were performed with different inclinations of the support surface on which the participant and the chair were positioned: horizontal support, support tilted 10° to the right, or forward. Twelve healthy adults participated in this experiment. Kinematic characteristics were recorded using an optoelectronic motion analysis system. Movement duration and trunk inclination amplitudes were analyzed for STS and BTS as well as trunk orientation and strategies of head stabilization. Concerning the movement analysis our results showed (1) temporal asymmetry between STS and BTS, attributed mainly to the integration of the mechanical effects of gravity, and (2) a decrease of trunk movements when the support was tilted forward, attesting to an immediate adaptation process. Concerning the postural analysis our study revealed that adults adopted selective head stabilization on space strategy with respect to balance constraints. To conclude, young adults were able to immediately update their internal model of action in order to optimize motor control and vertical body orientation.     

Modelling argumentation and modelling with argumentation

This paper discusses the epistemological and methodological bases of a scientific theory of meaning and proposes a detailed version of a formal theory of argumentation based on Anscombre and Ducrot's conception. Argumentation is shown to be a concept which is not exclusively pragmatic, as it is usually believed, but has an important semantic body. The bridge between the semantic and pragmatic aspects of argumentation consists in a set of gradual inference rules, called topoi, on which the argumentative movement is based. The content of each topos is determined at the pragmatic level, while the constraints on the forms of the topoi attached to a sentence are determined at the semantic level. Applications and possible applications toartificial intelligence and to cognitive sciences are discussed. In particular, the gradual models used to account for argumentation are shown to be extremely promising for Knowledge management, a discipline which includes knowledge acquisition, knowledge representation, transmission of knowledge (communication, interfaces, etc.), knowledge production (decision help, reasoning, etc.). A first formal model is presented and discussed: it is shown in details how it accounts for most of the argumentative features of sentences containing but, little and a little, and how it can be extended to describe sentences containing other argumentative connectives. However, this model is shown to be too simple and to violate the compositionality principle, which is shown, in the first section, to bean important methodological principle for any scientific theory. After a detailed analysis of the possible reasons for this violation, an improved model is proposed and its adequacy is discussed.