Aggressive behaviour is linked to fitness, but it is metabolically costly. Changes in metabolic demand during the reproductive cycle could constrain activity and thereby modulate behavioural phenotypes. We predicted that increased metabolic demands in late pregnancy would lead to reduced aggression and a lower metabolic cost of behaviour in the mosquitofish Gambusia holbrooki. Contrary to our p...

Most research on workaholism has been devoted to the refinement of the construct and to the study of its psychological health correlates. In the present study, we contribute to a better understanding of the interpersonal and organizational consequences of workaholism by investigating its relationship with workplace aggressive behaviour. Drawing on well-established models of workplace aggression...

A new psychiatric report and rating scale assessing severity and frequency of aggressive behaviour is presented and evaluated. It is based on the staff's standardized reports of aggressive incidents. By using a special aggression report form, comprehensive and standardized information is obtained, thereby permitting scoring and further analysis of different aspects of aggressive incidents. The ...

INTRODUCTION Aggressive behaviours can be disabling for adults with intellectual disabilities (ID), with negative consequences for the adult, their family and paid carers. It is surprising how little research has been conducted into the epidemiology of these needs, given the impact they can have. This study investigates point prevalence, 2-year incidence and 2-year remission rates for aggressiv...

A factor-analytic-basedmethod tomeasure the inhibition of three verbally aggressive behaviours was investigated in two studies on self-report data. Inhibitionwas subdivided into two types: inhibition of the tendency to become verbally aggressive and inhibition of the verbally aggressive behaviour. In Study 1, it was investigated whether both kinds can be separated and measured by using a factor...

This article presents a brief overview of existing research on the effects of exposure to violent video games. An updated meta-analysis reveals that exposure to violent video games is significantly linked to increases in aggressive behaviour, aggressive cognition, aggressive affect, and cardiovascular arousal, and to decreases in helping behaviour. Experimental studies reveal this linkage to be...

BACKGROUND Canine behavioural problems, in particular aggression, are important reasons for euthanasia of otherwise healthy dogs. Aggressive behaviour in dogs also represents an animal welfare problem and a public threat. Elucidating the genetic background of adverse behaviour can provide valuable information to breeding programs and aid the development of drugs aimed at treating undesirable be...

Aggressive behaviour is the most disturbing and distressing behaviour displayed by elderly people. The prevalence of aggressive behaviour is around 50% among psychogeriatric patients. OBJECTIVE This study sought to analyze the psychometric properties and diagnostic accuracy of the French version of the Rating Scale for Aggressive Behaviour in the Elderly (F-RAGE). METHODS The F-RAGE was adm...

In the poultry industry, aggressive behaviour is a large animal welfare issue all over the world. To date, little is known about the underlying genetics of the aggressive behaviour. Here, we performed a genome-wide association study (GWAS) to explore the genetic mechanism associated with aggressive behaviour in chickens. The GWAS results showed that a total of 33 SNPs were associated with aggre...