Anger and aggression in the presence of anxiety and depression

This portfolio considers major theories of aggression and relates them to four individual case studies. Each client has difficulties with anger and aggression and all had additional emotional difficulties, specifically depression and anxiety.

Pubertal stage and the prevalence of violence and social/relational aggression

OBJECTIVE We examined associations between pubertal stage and violent adolescent behavior and social/relational aggression.

METHODS The International Youth Development Study comprises statewide representative student samples in grades 5, 7, and 9 (N = 5769) in Washington State and Victoria, Australia, drawn as a 2-stage cluster sample in each state. We used a school-administered, self-report student survey to measure previous-year violent behavior (ie, attacking or beating up another person) and social/relational aggression (excluding peers from the group, threatening to spread lies or rumors), as well as risk and protective factors and pubertal development. Cross-sectional data were analyzed.

RESULTS Compared with early puberty, the odds of violent behavior were approximately threefold higher in midpuberty (odds ratio [OR]: 2.87 [95% confidence interval (CI): 1.81–4.55]) and late puberty (OR: 3.79 [95% CI: 2.25–6.39]) after adjustment for demographic factors. For social/relational aggression, there were weaker overall associations after adjustment, but these associations included an interaction between pubertal stage and age, and stronger associations with pubertal stage at younger age were shown (P = .003; midpuberty OR: 1.78 [95% CI: 1.20–2.63]; late puberty OR: 3.00 [95% CI: 1.95–4.63]). Associations between pubertal stage and violent behavior and social/relational aggression remained after the inclusion of social contextual mediators in the analyses.

CONCLUSIONS Pubertal stage was associated with higher rates of violent behavior and social/relational aggression, with the latter association seen only at younger ages. Puberty is an important phase at which to implement prevention programs to reduce adolescent violent and antisocial behaviors.

Female–female aggression : structure of interaction and outcome in loggerhead sea turtles

Aggressive behaviour between females of the same species is not widely documented, particularly in marine vertebrates. During a 3 yr in-water survey at the temperate loggerhead sea turtle Caretta caretta breeding area of Zakynthos, Greece, female–female interactions comprised 4% of all female loggerhead sighting events (n = 60 out of 1449 events). Male–female interactions comprised an additional 4% of sighting events, while 92% were of solitary females. The structure of interactions was analysed for 58 of these sighting events, each lasting an average of 3.4 min (SD ± 1) and comprising a total of 3.1 h observation time. We found that interactions involved ritualized escalation in behaviour from passive threat displays (e.g. head–tail circling) to aggressive combat (e.g. sparring). We suggest that circling individuals evaluate opponent size, sparring individuals test opponent strength, and that the positioning of the prehensile tail signals motivational intent to either escalate or abort. The presence of intruder females triggered a passive response in 100% of events involving basking and swimming turtles (n = 19); although residents resting on the seabed only responded on 69% of occasions (n = 27), their response was almost 4 times more likely to escalate to one of aggression. Our results suggest that certain sites may be preferentially sought after and defended by sea turtles.

The association between sports participation, alcohol use and aggression and violence: a systematic review

Objectives
To review the current research on alcohol-related violence and sports participation.

Methods
The Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were used to identify relevant studies for inclusion. A search of six databases (EBSCOhost) was conducted.

Results
A total of 6890 studies was were identified in the initial search. Of these, 11 studies met the inclusion criteria. The majority of the studies were from the US (n = 10) and focused on collegiate athletes (n = 7), adolescents (n = 3), professional/former professional athletes (n = 1).

Conclusion
The reviewed research indicates higher rates of alcohol use and violence in athlete populations when compared against non-athlete populations. Masculinity, violent social identity and antisocial norms connected to certain sports stand out as potential factors that may impact the association between sport and violence in athlete populations.

Alcohol, masculinity, honour and male barroom aggression in an Australian sample

Introduction and Aims
The link between alcohol and men's aggression is well established, although growing evidence also points to individual and learned social factors. The aim of the present study was to investigate the relationships between male alcohol-related aggression (MARA) among young Australian men and heavy episodic drinking, trait aggression, masculinity, concerns about social honour and expected positive consequences of MARA.

Design and Methods
The total sample comprised 170 men aged 18–25 years who completed an online questionnaire exploring beliefs and attitudes towards MARA.

Results
Those who reported heavy episodic drinking were more likely to be involved in an incident of MARA. In addition, those who were involved in MARA had higher levels of trait aggression, concern for social honour and expected positive consequences of aggression in bars than did those without such involvement. The relationship between socially constructed masculinity factors (a combined variable reflecting masculinity, social honour and expected positive consequences) and MARA was mediated by heavy episodic drinking. Social honour accounted for almost all of the predictive power of masculinity factors. Heavy episodic drinking and trait aggression remained significant predictors of MARA in a multivariate model.

Discussion and Conclusions
The findings from the current study may assist in developing preventative techniques for young men which target masculinity concerns and the consequences of participating in MARA.

Assessing effectiveness of aggression replacement training at a technical college in Thailand

Youth violence is a significant public health issue in Thailand where most people who are injured are vocational college students. There is a need to identify methods whereby such violence can be prevented. We trialed a group program in a technical college in Thailand with 23 students who received a modified version of aggression replacement training. We then compared their results with those of 24 students who did not receive any intervention or preintervention at 1 and 3 month followups. Although we found little evidence supporting the effectiveness of the intervention, participants in the intervention group suggested in the followup in-depth interviews that they felt more able to avoid or ignore provocation, and that they thought more about the consequences of aggressive behavior than they did prior to the intervention.

Pharmacological management of aggression and violence.

The pharmacological management of violence and aggression is a common and substantial clinical dilemma in the emergency psychiatric situation. A literature search was conducted through PubMed and using the Cochrane Library. This was followed by a manual search of selected literature. Randomised controlled trials were sought that specifically addressed the acute situation, rather than the ongoing management of chronic conditions. There was a paucity of well-controlled data and insufficient evidence to support the use of many agents in emergency situations. Many studies had considerable limitations making comparison difficult. Efficacy data for a range of treatment options exists, including the use of classical and atypical anti-psychotic agents, benzodiazepines and combination therapies. Clinical risk, tolerability and environmental factors need to form part of a careful and considered judgement in the choice of treatment. Safety, tolerability and the potential for a positive experience are major considerations, thus paving the way for long term compliance.

Demographic risk factors for alcohol-related aggression in and around licensed venues

AIMS: Few studies have examined the role of gender and both area-level and individual socio-economic status (SES) as independent predictors of alcohol-related aggression (ARA) in and around licensed venues. METHODS: The aim of the present study was to investigate the relationship between gender, area-level SES and individual SES (operationalised as occupational category) and ARA in and around licensed venues. The sample comprised 697 men and 649 women aged 16-47, who completed a patron intercept survey as part of a larger study assessing trends in harm and stakeholders' views surrounding local community level interventions in dealing with alcohol-related problems in the night-time economy. RESULTS: Binary logistic regression analyses showed that age, gender, occupational category, area-level SES and level of intoxication at time of interview were all significant predictors of involvement in ARA. Being male doubled the odds of involvement in ARA, while age was a protective factor. Blue collar workers had more than double the odds of ARA involvement of professionals, while those living in the most socio-economically disadvantaged areas were over twice as likely to report experiencing ARA compared to those living in the most advantaged areas. However, assessment of the predictive model by gender revealed that effects of age, occupational category and area-level SES were restricted to male participants, with greater intoxication no longer predictive. CONCLUSIONS: ARA among patrons was significantly more likely to occur among men, those in blue collar occupations, and individuals living in low SES areas, suggesting both individual and area-level disadvantage may play a role in ARA.

Benzodiazepine-related aggression: consideration of intrapersonal factors

The thesis aimed to enhance understanding of the association between benzodiazepine use and subsequent aggression or violence. A systematic review and two original cross-sectional studies highlighted the role of alprazolam, poor impulse control and maladaptive coping strategies in this response. Implications relate to medical, social, and legal arenas.

Aggression-related alcohol expectancies and barroom aggression among construction tradespeople

INTRODUCTION AND AIMS: Few studies have investigated the relationship of barroom aggression with both general and barroom-specific alcohol expectancies. The present study investigated these associations in a rarely studied and high-risk population: construction tradespeople. DESIGN AND METHODS: Male construction tradespeople (n = 211) aged 18-35 years (M = 21.91, SD = 4.08 years) participated in a face-to-face questionnaire assessing general and barroom-specific alcohol expectancies and perpetration of physical and verbal barroom aggression as well as control variables, age, alcohol consumption and trait aggression. RESULTS: Sequential logistic regression analyses revealed that general alcohol-aggression expectancies of courage or dominance were not predictive of either verbal or physical barroom aggression after controlling for age, alcohol consumption and trait aggression. However, barroom-specific alcohol expectancies were associated with both verbal and physical barroom aggression, with positive associations found for expected hyper-emotionality and protective effects for expected cognitive impairment. DISCUSSION AND CONCLUSIONS: In a population where rates of risky drinking and barroom aggression are high, specific expectations about the effects of drinking in bars may influence subsequent aggressive behaviour in bars. [Zinkiewicz L, Smith G, Burn M, Litherland S, Wells S, Graham K, Miller P. Aggression-related alcohol expectancies and barroom aggression among construction tradespeople. Drug Alcohol Rev 2015;00:000-00].

Environmental enrichment reduces aggression of pearl cichlid, Geophagus brasiliensis, during resident-intruder interactions

Em lutas entre peixes residentes e intrusos, residentes geralmente vencem, provavelmente porque valorizam o território mais do que os intrusos. Nós aventamos a hipótese de que ambientes enriquecidos aumentam o valor da área em disputa, levando os residentes a defenderem mais violentamente ambientes enriquecidos de recursos do que ambientes empobrecidos, pois possuiriam mais motivação para mantê-lo. No entanto, no presente estudo, ao testarmos as interações entre intrusos e residentes em acarás, Geophagus brasiliensis, observamos que o enriquecimento ambiental reduz a agressividade e pode levar a cohabitação entre os peixes, sem luta. Adicionalmente, em nossos experimentos, o efeito da residência prévia ocorreu independente da condição de enriquecimento. A diminuição das interações entre os peixes e, consequentemente, a diminuição do nível de agressividade é aqui atribuída aos efeitos da diminuição da visibilidade entre os peixes devido ao aumento de complexidade do ambiente.