State-space modelling is a powerful tool to study ecological systems. The direct inclusion of uncertainty, unification of models and data, and ability to model unobserved, hidden states increases our knowledge about the environment and provides new ecological insights. I extend …
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An illustrated ethogram describes the behavioral ecology and skin components of Abdopus aculeatus studied on Sulawesi, Indonesia and Queensland, Australia. These octopuses aggregated on intertidal reef flats and foraged for crustaceans during diurnal mid and low tides. Mating by…
Aggression is a feature of many clinical disorders including autism, Alzheimer’s disease, bipolar disorder, and schizophrenia. The available treatment options act to prevent impulsive aggression through modulation of GABAergic and dopaminergic pathways which come with metabolic …
The present research utilized the information-processing model of parenting to examine Turkish mothers' parenting beliefs in response to aggression and social withdrawal. Participants were 84 mothers with preschool-aged children residing in Ankara. Findings indicated that mother…
Social conflict is a part of everyday life, and it can be a potent stressor for both humans and other animals. In the laboratory, when two Syrian hamsters (Mesocricetus auratus) compete for territory, a dominance hierarchy is quickly formed. Becoming subordinate is a significant…
Anabolic-androgenic steroids (AAS) are synthetic derivatives of testosterone used by over half a million adolescents in the US for their tissue-building potency and performance enhancing effects. Recent studies show AAS use is increasing among teenagers. AAS have behavioral effe…
Examined within the I3 ("I-cubed") theoretical framework (Finkel et al., 2012), neuropsychological measures of executive function were tested as predictors of violence in veterans of Iraq and Afghanistan within 6 months post-deployment. Substantial deficits in executive function…
The effects of cyproheptadine, a serotonin (5-HT) antagonist and clozapine, a 5-HT/dopamine (DA) antagonist, on the agonistic, submissive, and nonagonistic social approach behaviors of aggressive and submissive hamsters were investigated. Research has indicated that 5-HT is invo…
The three common socializing agents of aggression in the Western culture are the family, peers, and the media. Cultures differ in their tolerance of the expression and display of aggressive behavior. Therefore, the objective was to examine agents of aggression in the Javanese cu…
Violence is a prominent part of human history as well as modern society. In this study, literature describing social, cognitive, and evolutionary psychological models of aggression is discussed. Based on this discussion, it is suggested that evolutionary psychology provides an e…
Macaque (Macaca spp.) societies represent complex adaptive systems marked by multifaceted, heterogeneous social interactions among groups members. Such dynamics allow for considerable variation to emerge with regard to social structure both within as well as across the species o…
Previous work has found that although mental illness is positively related to offending behavior, it is a fairly poor predictor of aggression, violence, offending, and recidivism after controlling for sociodemographic and historical risk factors (i.e., criminal history, age, rac…
Ostracism–being ignored or excluded by an individual or a group–leads to many negative consequences that can impact individuals behaviorally, physiologically, and cognitively. Considering these consequences, research over ostracism has turned to how individuals can cope with thi…
Background: Corticosteroids have been associated with a wide range of psychiatric disturbances, such as mania, agitation, aggression, depression, bipolar and psychosis. Our first aim was to try to quantify the prevalence of each of the most commonly reported psychiatric symptoms…
The grunge music genre broke into mainstream radio in 1991 with the release of Nirvana’s single “Smells Like Teen Spirit” and their album, Nevermind. The movement’s unprecedented popularity exposed a community of young musicians in Seattle, Washington whose music became cast as …
Juvenile firesetting has been a growing concern in the United States. Previous research has suggested that aggression may be a factor in juvenile firesetting. The present study examined the relationship between youth firesetting behavior and aggression. Participants included 192…
Schools are held accountable for creating and maintaining safe learning environments for all students. The prevalence of behavior and conduct disorders, specifically aggression, remain problematic for school campuses. When a child’s aggressive behaviors persist over time, the de…
Research has shown that the experiences of pain and aggression are linked. Past research supports the notion that individuals with an aggressive history tend to have higher pain thresholds than their less aggressive counterparts. The aim of this study was to test the notion that…
The aim of this study was to investigate the basis to male mating decisions in two related species of bitterling: Rhodeus ocellatus and R. amarus. Bitterling have a resource-based mating system; females lay eggs in the gills of live freshwater mussels and males fertilize the egg…