Measuring the Severity of Objective and Subjective Patient-to-Staff Violence in Psychogeriatric and Adult Psychiatric Wards: A Retrospective Study of Four Swiss Hospitals.

Measurement of patient-to-staff violence (PSV) is essential for the institution to prevent negative outcomes and provide effective interventions. Although there are several approaches to doing this in psychiatry, little is known about how well they adapt to different types of wards. The role of gender and age also needs further investigation.

Examination of the importance of anger/irritability and limited prosocial emotion/callous-unemotional traits to understand externalizing symptoms and adjustment problems in adolescence: A 10-year longitudinal study.

Objective: Within a longitudinal study (10-year follow-up), we aim to examine the role of anger/irritability and limited prosocial emotion/callous-unemotional traits in predicting externalizing symptoms and adjustment problems in individuals formerly in youth residential care institutions.

Method: These dimensions were assessed in 203 young adults, with baseline assessments during youth residential care and a follow-up 10 years later.

Results: In general, emotional problems and psychopathological symptoms did not reduce over time.

Dynamics of parasympathetic activity in violent incarcerated offenders before, during, and in recovery from an emotional inhibition task.

Dynamics of the autonomic nervous system (ANS) are hypothesized to play a role in the emergence of interpersonal violence. In the present study, we examined continuous activities of the inhibitory parasympathetic pathway of the ANS through the root mean square of successive differences between normal heartbeats (RMSSD) in 22 male offenders who committed interpersonal violence and 24 matched controls from the general population across three successive phases: resting baseline, while performing an emotional Go/No-Go task, and post-task recovery. Results showed that across the three phases, the offender group presented lower RMSSD at baseline (p = .

The Utility of Physiological Measures in Assessing the Empathic Skills of Incarcerated Violent Offenders.

Since lack of empathy is an important indicator of violent behaviors, researchers need consistent and valid measures. This study evaluated the practical significance of a potential physiological correlate of empathy compared to a traditional self-report questionnaire in 18 male violent offenders and 21 general population controls. Empathy skills were assessed with the (IRI) questionnaire.

Temporal regularity of cerebral activity at rest correlates with slowness of reaction times in intellectual disability.

Objective: Intellectual disability (ID) is described as a general slowness in behavior and an inadequacy in adaptive skills. The present study examines whether behavioral slowness in ID could originate from abnormal complexity in brain signals.

Methods: Participants (N = 29) performed a reaction times (RTs) task assessing their individual information processing speeds.

Substance-use disorders, personality traits, and sex differences in institutionalized adolescents.

Background: Substance-use disorder (SUD) was found to be an aggravating factor to delinquency and is closely related to personality disorders (PDs).

Objectives: The aim of this study was to investigate sex differences in the relationship between PD traits and SUD in adolescents institutionalized in child welfare and juvenile justice institutions.

Methods: PD traits were measured dimensionally in a sample of 282 boys (69 with an SUD diagnosis) and 143 girls (45 with an SUD diagnosis) from child welfare and juvenile-justice institutions.

Predicting physically violent misconduct in prison: A comparison of four risk assessment instruments.

Violence in correctional facilities is an important issue for both prisoners and prison staff. Risk assessment instruments have demonstrated their accuracy in predicting the risk of (re) offending and institutional violence in psychiatric settings, but less is known about their ability to predict violent misconduct in prison. The present study applied four risk assessment instruments (Structured Assessment of Protective Factors for violence risk, Historical Clinical Risk Management-20, Psychopathy checklist - Revised, and Violent Risk Appraisal Guide) to 52 violent offenders in a Swiss prison in order to evaluate the instruments' predictive validities.

Cannabis, a Significant Risk Factor for Violent Behavior in the Early Phase Psychosis. Two Patterns of Interaction of Factors Increase the Risk of Violent Behavior: Cannabis Use Disorder and Impulsivity; Cannabis Use Disorder, Lack of Insight and Treatment Adherence.

Previous literature suggests that prevalence of cannabis use in the early phase of psychosis is high, and that early psychosis patients are at high-risk for violent behavior. However, the link between cannabis use and violent behavior in early psychosis patients is unclear. We carried out a study on a sample of early psychosis patients, in order to explore the impact of cannabis use on the risk of violent behavior (VB), while taking into account (1) potential confounding factors and, (2) interactions with other dynamic risk factors of VB.

Frontal cortical thickness correlates positively with impulsivity in early psychosis male patients.

Aim: Impulsive behaviours, which are frequent in young people suffering from psychosis have been linked to risky and violent behaviours and participate to the burden of psychotic illness. Given that morphological brain correlates of impulsivity in schizophrenia have been poorly investigated especially in young adults, the aim of this study was to investigate the relationship between impulsivity and cortical thickness in early psychosis (EP) patients.

Method: A total of 17 male subjects in the early phase of psychosis were recruited.

Violent behaviour in early psychosis patients: Can we identify clinical risk profiles?

Aims: The objective of this study is to explore, within a sample of early psychosis patients (EPP), if subgroups regarding rate of violent behaviour (VB) against others can be identified on the basis of dynamic risk factors (treatment modifiable characteristics).

Methods: In a sample of 265 EPP, treated at the Treatment and Early Intervention in Psychosis Program in Lausanne, we conducted a latent-class analysis on the basis of the main dynamic VB risk factors (substance use disorder [SUD], positive symptoms, insight, and impulsivity). VB were restricted to "serious violence" and were assessed through patients self-report, interview with relatives or forensic services and with a standardized instrument.

[Insight and Violent Behavior in a Cohort of Early Psychosis Patients].

Objectives:: An important proportion of patients with first episode psychosis behave in a violent, hetero-aggressive manner. This study aims to explore the association between insight and violent behavior (VB), and insight evolution in the follow-up period.

Method:: The study was carried out with a prospective cohort of 265 patients recruited from the early treatment and intervention for psychotic disorders program, and followed for a 3-year period.

Changes in Heart Rate Variability Recorded in Natural Situation with T-Shirt Integrated Sensors and Level of Observed Behavioral Excitation: A Pilot Study of Patients with Intellectual Disabilities and Psychiatric Disorders.

Background: The present study investigates the possibilities of using heart rate variability (HRV) parameters as physiological markers that precede increase in observed behavioral excitation of intellectually disabled individuals. The ability to recognize or predict such patterns, especially in patients showing unpredictable reactions and language deficiencies, might be a major step forward in clinical research.

Method: Thirteen volunteers with intellectual disabilities, who had suffered of at least one event of overt aggression in the preceding 3 months, participated to the study.

Comparison of early cortical networks in efficient and inefficient visual search: an event-related potential study.

Functional magnetic resonance imaging studies have indicated that efficient feature search (FS) and inefficient conjunction search (CS) activate partially distinct frontoparietal cortical networks. However, it remains a matter of debate whether the differences in these networks reflect differences in the early processing during FS and CS. In addition, the relationship between the differences in the networks and spatial shifts of attention also remains unknown.

A new electrophysiological index for working memory load in humans.

Working memory, the ability to store and simultaneously manipulate information, is affected in several neuropsychiatric disorders which lead to severe cognitive and functional deficits. An electrophysiological marker for this process could help identify early cerebral function abnormalities. In subjects performing working memory-specific n-back tasks, event-related potential analysis revealed a positive-negative waveform (PNwm) component modulated in amplitude by working memory load.