Aggressive interactions and consistency of dominance hierarchies of the native and nonnative cichlid fishes of the Balsas basin

Dominance hierarchies are generally established based on the levels of aggressiveness that animals present. Frequently, animals fight to establish a dominance hierarchy and obtain a disputed resource. The Mexican mojarra Cichlasoma istlanum is a native species of the Balsas river basin and coexists there with four nonnative cichlids: tilapia Oreochromis sp., convict cichlid Amatitlania nigrofasciata, spotcheek cichlid Thorichthys maculipinnis, and green terror Andinoacara rivulatus. These five cichlid species compete for spaces for reproduction, feeding, and shelter and frequently engage in aggressive interactions to obtain these resources. We quantified dominance indices to evaluate the hierarchical structure of dominance among these five cichlids and the duration of aggressive behaviors of the Mexican mojarra during experimental contests between the native species and each of the four nonnative species. The Mexican mojarra was consistently dominant over the other four cichlid species, performing a larger number of aggressive behaviors and investing more time in attacking than the nonnative cichlids, which resulted in a higher hierarchical position. Our results show that the native fish, Mexican mojarra, established dominance over all four nonnative cichlid fish of the Balsas basin. Thus, the establishment of nonnative cichlid species in the Balsas basin is likely associated with factors other than behavioral dominance.     

Innovative problem-solving in a threatened gull species,the Olrog’s Gull (Larus atlanticus)

Animal Cognition - Innovation, a process that plays an important role in the ecology and evolution of species, is considered an expression of behavioral flexibility in animals. Here we analyzed...     

Requiem for analytical psychology: a reflection on Jung's (anti)catastrophic psychology

This article is an interpretation of analytical psychology in the light of the catastrophic vision and dreams that Jung had in 1913 and 1914. It is shown how the guiding spirit of Jung's psychological project is to be found in that psychic material. Then it is proposed that the completion of the symbolic catastrophe displayed in Jung's last vision (1961) points to the end of the psychological foundations upon which analytical psychology is built, and thus to its cultural obsolescence, extensive to any psychology grounded in Jung's notion of ‘soul’.     

Self‐regulation predicts risk‐taking through people's time horizon

In the context of decision‐making research, people's regulatory orientation mode (i.e., assessment and locomotion modes) has been included among the most prominent individual difference variables, which may potentially account for choice behaviour. Thus, the main objective of our experiment was to investigate the relations between habitual use of regulatory mode and risk‐taking through people's time horizon. Risk‐taking was appraised using a behavioural measure (i.e., BART) 1 month following evaluation of habitual use of regulatory mode. The findings revealed a significant negative association between the assessment mode and risk‐taking through individual differences in time horizon.     

Gender Hierarchy in the Space: The Role of Gender Status in Shaping the Spatial Agency Bias

According to the Spatial Agency Bias (SAB), more agentic groups (men) are envisioned to the left of less agentic groups (women). This research investigated the role of social status in shaping the spatial representation of gender couples. Participants were presented pairs consisting of one male and one female target who confirmed gender stereotypes. The status of the targets in each pair was systematically varied (high-status vs. low-status job). Participants chose the target order (female/male vs. male/female) they preferred. In line with gender-status expectations (male: high-status, female: low-status), a male in a high-status job led to a spatial arrangement that favored the male/female order, regardless of the status of the female target. The female/male order was favored only when the female had a high-status job and the male a low-status job. No SAB occurred for pairs in which both targets displayed low-status jobs. The implications of status for the SAB are discussed.     

Family crisis intervention in war contexts: a case study of a traumatised Palestinian family

The aim of this study was to analyse the phases of an innovative in vivo exposure intervention in which all family members were present at the scene of a traumatic incident. Clinical practice has borne out the efficacy of family intervention and its benefits for traumatised individuals and family groups. The intervention discussed here was conducted with a Palestinian family that had suffered trauma in a missile attack during the Israeli–Lebanese war of summer 2006. Narrative and meaning-reconstruction methods were combined with cognitive-behavioural techniques. The study highlights the limitations of the intervention as well as suggesting future directions for integrated models of crisis intervention; development of an evidence-based model is recommended.     

Factor Validity of the Beck Hopelessness Scale in Italian Medical Patients

The aim of the present study was to assess the factor structure of the Italian version of the Beck Hopelessness Scale (BHS) in a large sample of patients with medical conditions, comparing four different models proposed previously in the literature. Participants were 514 Italian adult patients with diagnoses of chronic daily headache, type 1 (insulin-dependent) or type 2 diabetes mellitus, epilepsy, open-angle glaucoma, human immunodeficiency virus infection, and women admitted for childbirth to a Department of Fetal–Maternal Medicine. All the patients were administered the BHS during routine visits. Confirmatory factor analyses were used to compare four models using several fit indices. The one-construct two-method model (i.e., the BHS measures one substantive hopelessness construct plus artifacts due to negative–positive item polarity) had the best fit indices and was more parsimonious than other models. The BHS seems to be a unidimensional measure of hopelessness, although there may be artifacts due to item polarity (i.e., positively and negatively worded items). Hopelessness scores differed in patients with particular medical diseases, with higher scores in conditions such as chronic daily headache and diabetes, and lower scores in patients positive for the human immunodeficiency virus (HIV), and with open-angle glaucoma or epilepsy.     

Quality of Life,Anxiety and Depression in Soft Tissue Sarcomas as Compared to More Common Tumours: An Observational Study

The aim of this study is to compare the quality of life and the levels of anxiety and depression in a relatively large group of subjects undergoing chemotherapy for soft tissue sarcoma and a control group of subjects undergoing chemotherapy for the most common types of cancer. 56 soft tissue sarcoma affected patients and 56 patients with common tumours, homogeneous in regards to stages of disease and sociodemographic characteristics, were enrolled in two oncological centres in Turin, Italy. Quality of life was assessed by Functional Assessment of Cancer Therapy-General and anxiety and depression by Hospital Anxiety and Depression Scale. All patients had ongoing chemotherapy. The comparison between the two groups shows no difference in either quality of life or in anxiety and depression. There are instead gender differences, since females in the group of common tumours show higher levels of anxiety in comparison to those affected by sarcomas, while males show, at a lower degree, the opposite trend. This study suggest that levels of Quality of Life, anxiety and depression are similar in rare and common tumours. The majority of patients are able to cope with the disease in an adaptive manner. However, for some patients the disease poses a threat to their physical and mental integrity; psychological support of these patients may reduce the development of significant morbidity and help patients to better manage the course of the disease and the effects of the treatment.     

An Evolutionary Life History Framework for Psychopathology

In this article, I outline a general framework for the evolutionary analysis of mental disorders based on the concepts of life history theory. I synthesize and extend a large body of work showing that individual differences in life history strategy set the stage for the development of psychopathology. My analysis centers on the novel distinction between fast spectrum and slow spectrum disorders. I describe four main causal pathways from life history strategies to psychopathology, argue that psychopathology can arise at both ends of the fast–slow continuum of life history variation, and provide heuristic criteria for classifying disorders as fast or slow spectrum pathologies. I then apply the fast–slow distinction to a diverse sample of common mental disorders: externalizing disorders, schizophrenia and autism spectrum disorders, obsessive-compulsive disorders, eating disorders, and depression. The framework integrates previously disconnected models of psychopathology within a common frame of reference and has far-reaching implications for the classification of mental disorders.     

A Tower Unto Heaven: Toward an Expanded Framework for Psychopathology

I respond to commentaries on my target article “An Evolutionary Life History Framework for Psychopathology.” I start by addressing criticism of my basic assumptions about life history strategies and their implications for individual differences in human behavior. Next, I examine the theoretical structure of the proposed framework and respond to the commentators’ challenges to its generality and flexibility. I show how the framework can be expanded to include multiple levels of analysis and to integrate behavioral control with neurological functionality; I also reinterpret the recent finding of a general factor of psychopathology in the context of the expanded framework. In the last section I discuss specific psychopathological conditions, namely attention deficit/hyperactivity disorder, borderline personality disorder, substance abuse, autism spectrum disorders, schizophrenia spectrum disorders, obsessive-compulsive disorder, eating disorders, and depression. For each condition, I reply to the commentators’ criticism of my life history analysis, integrate their suggestions and insights, highlight the present weaknesses of the theory, and indicate promising directions for future research.