Playful defensive responses in adult male rats depend on the status of the unfamiliar opponent

Adult male rats reared as pairmates from weaning were tested in a neutral arena with both members of another pair (one at a time). The unfamiliar pairs were found to engage in play fighting, although they were more likely to escalate the encounter into serious fighting than were pairs of familiar rats. Based on their within‐home pair behavior, each pairmate was designated as a dominant or a subordinate. When the test encounters between unfamiliar males were analyzed with regard to whether the pairings consisted of two dominants, two subordinates, or a mixed pair, the pattern of play fighting was found to be attenuated. Both dominants and subordinates were more likely to initiate playful encounters, to respond defensively during these encounters, and to do so using adult‐typical tactics of defense when paired with an unfamiliar rat that was dominant in its home cage. The mechanisms by which the home status of unfamiliar male rats can be identified by another male are discussed, particularly with regard to the role that play fighting may serve for this function. It is concluded that the data support the hypothesis that play fighting can be used by adult rats for social testing, which in this case seems to involve ascertaining the opponent's fighting capability. Aggr. Behav. 25:141–152, 1999. © 1999 Wiley‐Liss, Inc.     

Effect of body size on aggression in the ant,Cataglyphis niger (Hymenoptera; Formicidae)

In polymorphic ants, such as Cataglyphis niger, sterile individual workers from the same nest show some degree of variation in size and/or morphology. We studied whether worker size and size difference between opponents had an effect on aggression during conspecific encounters. Although the capacity to recognize nestmates was shared by all individuals, some patterns of agonistic behaviors were size related. Escape was mostly displayed by the small workers, and threat, associated with ritualized fights, by the large workers. As game theory predicted, ants of C. niger adjusted their level of aggression as a function of the size of the opponent. However, only large individuals used such assessment strategies, responding with escalation of aggression towards small workers and reduction of aggression towards large ones. On the contrary, small individuals behaved in the same manner whatever the opponent's size. Differences between both morphological castes were discussed with reference to the resource holding assessment models. Aggr. Behav. 25:369–379, 1999. © 1999 Wiley‐Liss, Inc.     

Identity processing style and cognitive attributional strategies: similarities and difference across different contexts

Identity processing style refers to the manner in which individuals approach or manage to avoid identity relevant problems and decisions. Two studies were designed to investigate the relationship between identity style and the specific cognitive and attributional strategies youth deploy in achievement and affiliative contexts. In Study 1, 198 American late adolescents filled in the revised Identity Style Inventory and a Strategy and Attribution Questionnaire. In Study 2, 109 Finnish late adolescents filled in the same measures. Study 1 revealed that diffuse/avoidant‐oriented American youth relied on maladaptive strategies in both contexts. Information‐oriented youth engaged in more strategic planning than did their normative and diffuse/avoidant counterparts. Study 2 indicated an identical pattern of associations among the identity processing styles and cognitive and attributional strategies for Finnish youth in achievement but not in interpersonal settings. The results are discussed in the context of a social–cognitive theory of identity development. Copyright © 1999 John Wiley & Sons, Ltd.     

Treating infants and mothers in psychic distress: A mental health program for infancy

Our purpose is to outline a program of mental health for mothers and infants up to the age of 3. The theoretical background of the program refers to the psychoanalytical genetic point of view developed by French and American authors. The therapeutic objectives consist of promoting the infant's self-development and the mother's reflective self-capacity to improve the infant's resiliency. These objectives aim to have preventive purposes. The program has clinical, research and training activities and a multidisciplinary staff. The clinical population is referred by medical services, from families with a middle-low socioeconomic status. With the data collected during the assessment phase, we establish a diagnosis based on a psychodynamic analysis of the pathological process and the evaluation of the risk and protective factors. Our multidisciplinary approach combines individual therapeutic modalities focused on mothers, child or mother-child relationship, with family interventions in our Unit or in the community. An evaluation of our intervention based on Parent-Infant Relationship-Global Assessment Scale (PIR-GAS) is presented. © 1997 Michigan Association for Infant Mental Health     

War on heaven and earth: Misotheistic themes in popular culture

In this article, I evaluate particular critical narratives of religion in pop culture. I note briefly some early cases where criticism is primarily directed at religious abuses. Next, I make some observations about the misotheistic tradition in which the relationship between religious reality and human life is more complicated. Finally, I make some remarks on the use of religious and quasireligious elements in pop culture and what kind of effects these might have on our social imagination.     

A Romanian Contribution to Contemporary Ecumenism

This article examines the contribution to ecumenical dialogue of Ion Bria, an important Romanian theological and ecumenical personality. The value of his approaches is demonstrated by the fact that many contemporary authors start their research from his ideas, such as the concept of the “liturgy after the liturgy,” of which he was a significant proponent, and which are still relevant to ecumenical dialogue. At the time they were first proposed, they shifted ecumenical dialogue. Bria was also a good and careful observer of ecumenical and pan‐Orthodox reality. He presented with objectivity the reality from his home space and made valuable comparisons between his spirituality and other confessional approaches, offering new topics of dialogue and creating bridges between churches.