Attentional processing of emotional material in types of anxiety and depression

ABSTRACT

The present study was designed to address the hypothesis that differences and similarities in patterns of attentional processing in recently proposed types of anxiety and depression are connected with the dominant (reactive, regulative) function they play in stimulation processing and their structural components. Participants (N?=?1247) filled out the Anxiety and Depression Questionnaire, which assesses types of anxiety and depression, and completed the Emotional Faces Attentional Test one week later. The obtained results confirmed our prediction and suggested that the proposed typology of anxiety and depression is valid in the adaptive meanings of both phenomena.     

Tableaux and Dual Tableaux: Transformation of Proofs

We present two proof systems for first-order logic with identity and without function symbols. The first one is an extension of the Rasiowa-Sikorski system with the rules for identity. This system is a validity checker. The rules of this system preserve and reflect validity of disjunctions of their premises and conclusions. The other is a Tableau system, which is an unsatisfiability checker. Its rules preserve and reflect unsatisfiability of conjunctions of their premises and conclusions. We show that the two systems are dual to each other. The duality is expressed in a formal way which enables us to define a transformation of proofs in one of the systems into the proofs of the other. Presented by Wojciech Buszkowski     

The expression of c-Fos and colocalisation of c-Fos and glucocorticoid receptors in brain structures of low and high anxiety rats subjected to extinction trials and re-learning of a conditioned fear response

We designed an animal model to examine the mechanisms of differences in individual responses to aversive stimuli. We used the rat freezing response in the context fear test as a discriminating variable: low responders (LR) were defined as rats with a duration of freezing response one standard error or more below the mean value, and high responders (HR) were defined as rats with a duration of freezing response one standard error or more above the mean value. We sought to determine the colocalisation of c-Fos and glucocorticoid receptors-immunoreactivity (GR-ir) in HR and LR rats subjected to conditioned fear training, two extinction sessions and re-learning of a conditioned fear. We found that HR animals showed a marked decrease in conditioned fear in the course of two extinction sessions (16 days) in comparison with the control and LR groups. The LR group exhibited higher activity in the cortical M2 and prelimbic areas (c-Fos) and had an increased number of cells co-expressing c-Fos and GR-ir in the M2 and medial orbital cortex after re-learning a contextual fear. HR rats showed increased expression of c-Fos, GR-ir and c-Fos/GR-ir colocalised neurons in the basolateral amygdala and enhanced c-Fos and GR-ir in the dentate gyrus (DG) in comparison with LR animals. Our data indicate that recovery of a context-related behaviour upon re-learning of contextual fear is accompanied in HR animals by a selective increase in c-Fos expression and GRs-ir in the DG area of the hippocampus.     

A Proof System for Contact Relation Algebras

Contact relations have been studied in the context of qualitative geometry and physics since the early 1920s, and have recently received attention in qualitative spatial reasoning. In this paper, we present a sound and complete proof system in the style of Rasiowa and Sikorski (1963) for relation algebras generated by a contact relation.     

The Etiology of Individual-Targeted Intolerance: Group Stereotypes and Judgments of Individual Group Members

Virtually all scientific writing on attitudes toward political unorthodoxy in the United States focuses on group-targeted tolerance, or the question of whether Americans are willing to extend constitutional rights and freedoms to groups outside the political mainstream. Less is known about the etiology of individual-targeted tolerance, or the question of whether Americans are willing to tolerate the exercise of constitutional rights and freedoms by individuals who belong to unpopular groups. This paper examines the sources of attitudes toward individuals belonging to disliked and stereotyped political groups—in particular, the extent to which political tolerance judgments about gay and racist targets are influenced by attributes of those targets that are either consistent or inconsistent with group stereotypes. In line with expectations, an empirical analysis showed that individuals exhibiting attributes inconsistent with their group's stereotype (whether neutral with respect to stereotypic beliefs or directly challenging them) are tolerated more than those with stereotype-consistent attributes. Because members of political outgroups can control the timing of disclosing their group membership, they have the power to determine whether and to what extent stereotypic beliefs associated with their group will influence the reactions they provoke. This analysis confirms that the impact of stereotypic beliefs on tolerance varies as a function of timing of group membership revelation, although the direction of this interaction depends on the intensity of dislike for the group of which the individual target is a member.     

The effectiveness of personalized e-mail newsletters and the role of personal characteristics

Personalizing communication means creating persuasive messages that refer to aspects of a person's self. Although the use of personalization is increasing, research on its effectiveness is limited and the results are mixed. This study examined the persuasiveness of personalized e-mail newsletters in terms of increased attention, cognitive activity, evaluation, attitude, intention, and behavior by means of an experiment (n=109). Participants randomly received either a personalized or a generic newsletter advertising a sports center. Personalization triggered a more positive evaluation of the message; however, it did not influence the other effect variables. The effects were moderated by consumers' need for uniqueness, trust, and privacy concerns, suggesting that personalization is a good strategy to increase message evaluation only among individuals who have a high need for uniqueness.