In size-structured groups, conflict over rank, resources or access to breeding opportunities is expected to be greatest among individuals that are similar in size. We tested this general prediction using the cooperatively breeding African cichlid, Neolamprologus pulcher. We predicted that, when size differences between group members were small, we would observe some or all of: increased aggress...

Regional brain concentration of monoamines (NA, DA and 5-HT) and their metabolites (MHPG, DOPAC, HVA and 5-HIAA) were measured in dominant and submissive cats in a predatory competition test and in predatory behaviour of single cats. A submissive position in predatory hierarchy produced an increase in concentration of NA in the hypothalamus, a decrease of DA, 5-HT, MHPG and MHPG/NA ratio in the...

Recent research (Carney, Cuddy & Yap, 2010) has shown that adopting a powerful pose changes people’s hormonal levels and increases their propensity to take risks in the same ways that possessing actual power does. In the current research, we explore whether adopting physical postures associated with power, or simply interacting with others who adopt these postures, can similarly influence sensi...

This research investigated the construct validity of Ihe Inventory of Interpersonal Problems (IIP; L. M. Horowitz, S. E. Rosenberg, B. A. Baer, G. Ureno, & V. S. Villasenor, 1988) in the context of psychodynamic psychotherapy. The interpersonal circumplex was used to categorize patients reporting interpersonal distress into 1 of 4 problem quadrants: Friendly Dominant, Hostile Dominant, Hostile ...

Baboons' (Papio cynocephalus ursinus) understanding of cause-effect relations in the context of social interactions was examined through use of a playback experiment. Under natural conditions, dominant female baboons often grunt to more subordinate mothers when interacting with their infants. Mothers occasionally respond to these grunts by uttering submissive fear barks. Subjects were played ca...

Previous studies have identified two subgroups of school violence victims: submissive and aggressive. Submissive victims are characterized by their withdrawal in violent situations, while aggressive victims combine hostile behavior with victimization. This study focuses on the second subgroup and aims to analyze possible factors influencing the transition from passive victimization to involveme...

The present work studied 13 types of Chinese attitudes and compared the confusion patterns between subjective and objective identification. The listening experiment showed that the overall recognition rate for these attitudinal utterances was 46% by native subjects, while in discriminant analysis, the recognition rate was 25.4% based on five prosodic parameters (minimum f0, maximum f0, mean f0,...

Interpersonal assessment may provide a clinically useful way to identify subtypes of social phobia. In this study, we examined evidence for interpersonal subtypes in a sample of 77 socially phobic outpatients. A cluster analysis based on the dimensions of dominance and love on the Inventory of Interpersonal Problems-Circumplex Scales (Alden, Wiggins, & Pincus, 1990) found 2 interpersonal subtyp...

A contrived play group procedure was utilized to examine the behavioral and social-cognitive correlates of reactive aggression, proactive aggression, and victimization via peers. Eleven play groups, each of which consisted of six familiar African-American 8-year-old boys, met for 45-min sessions on five consecutive days. Social-cognitive interviews were conducted following the second and fourth...

In a series of studies the Self Salience Model of other-to-self effects is tested. This model posits that self-construal salience is an important determinant of whether other-to-self effects follow the principles of self-enhancement, imitation, or complementarity. Participants imagined interactions (Studies 1 and 2) or were confronted (Studies 3 to 5) with dominant, submissive, agreeable, or qu...