Predictors of recidivistic violence in criminally insane and civilly committed psychiatric inpatients

Evolving systems of care: Individuals found not criminally responsible on account of mental disorder in custody of civil and forensic psychiatric services

Following psychiatric deinstitutionalization and changes in involuntary civil commitment laws, many individuals with severe mental disorders have been receiving mental health services through the back door, that is, the criminal justice system. Significant changes to the section of Criminal Code of Canada dealing with individuals with mental disorders have led to significant annual increases in the number of individuals declared Not criminally responsible on account of mental disorder (NCRMD), many of whom are directed to civil psychiatric settings. The goal of the present study was to describe the psychosociocriminological and risk characteristics of individuals found NCRMD remanded to civil psychiatric hospitals (CPH) compared to a forensic psychiatric hospital (FPH). This study was conducted between October 2004 and August 2006 in the sole FPH of the province of Québec and two large CPH in the Montréal metropolitan area. The final sample for the current study consisted of 96 men: 60 from the FPH and 36 from the two CPH. Results indicate that individuals in both settings have similar psychosociocriminal profiles, including PCL-R scores, but that individuals in CPH have higher scores in the Risk subscale of the HCR-20 than do their counterparts in the FPH. This difference is due to a higher score on two items: exposure to destabilizing factors and noncompliance with remediation attempts. Results are discussed in terms of the need for civil psychiatric settings to implement risk assessment and management programs into their services, and the need for further research into forensic mental health services.

External validity of studies on aggressive behavior in patients with schizophrenia: systematic review

STUDIES ON VIOLENCE IN SCHIZOPHRENIA USE TWO DIFFERENT APPROACHES: use of epidemiological data, and clinical studies recording direct patient data after gaining informed consent. With regard to informed consent requiring agreement and cooperation, the question arises as to what extent participants represent patients with schizophrenia and violent behaviour (external validity). We conducted a systematic literature research. In most of the studies, aggression or violence, respectively, were poorly defined. Only 5 (15.2%) studies used a cut-off score on an aggression scale. Only 6 studies (18.2%) reported the number of patients who refused to participate, and 16 (48.5%) reported the number of drop-outs. Only 3 studies (9.1%) reported a systematic comparison of participants and non-participants. We found that data which allow for the assessment of representativeness of the investigated samples are poorly reported. For most studies, doubts regarding external validity seem justified and generalisability is questionable due to possible selection bias.

Comportamento violento e disfunção cerebral: estudo de homicidas no Rio de Janeiro

Objetivos: Estudar a correlação entre disfunção cerebral e psicopatia em homicidas. Métodos: Foram separados em dois grupos (psicopatas e não-psicopatas) 29 homicidas "normais" (não-psicóticos), detidos em uma delegacia policial e escolhidos aleatoriamente, com base no HARE PCL-R (escala de avaliação de psicopatia). Ambos os grupos foram submetidos a testagem neuropsicológica, sendo empregados testes voltados para atividade em lobo frontal (Trail Making Test A e B, e subtestes do WAIS [Mosaico, Semelhanças e Símbolos Numéricos]). Resultados: Dos homicidas, 15 foram considerados psicopatas e 14, não-psicopatas. O subteste Mosaico, do WAIS, constituiu-se em discriminador entre os dois grupos pela presença significativa de resultados negativos em não-psicopatas (chi²=5,37; G.L.=1; P<0,05). Como a prevalência de diagnósticos de dependência/abuso de álcool/drogas foi maior entre os psicopatas, conclui-se que esse fator não influiu significativamente na melhor performance neuropsicológica desse grupo. Conclusões: Há evidências de correlação entre disfunção cerebral frontal e comportamento homicida em não-psicopatas. Sugere-se o emprego sistemático do PCL-R em populações forenses violentas, com o objetivo de atingir uma melhor depuração dos grupos estudados.