| 1. |
- Caman, Shilan, et al.
(författare)
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Differentiating Male and Female Intimate Partner Homicide Perpetrators : A Study of Social, Criminological and Clinical Factors
- 2016
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Ingår i: International Journal of Forensic Mental Health. - : Informa UK Limited. - 1499-9013 .- 1932-9903. ; 15:1, s. 26-34
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Tidskriftsartikel (refereegranskat)abstract
- It is recognized that the majority of intimate partner homicide (IPH) victims are female; simultaneously, when females do commit homicide, they are more likely to perpetrate against an intimate partner. To date, there are only a few studies that discuss IPH across gender, leading to a gap of knowledge with regard to gender aspects of perpetration. The present nationwide study has a retrospective design, based on registries of all female (n = 9) and stratified male (n = 36) IPH committed in Sweden between 2007 and 2009. Our study suggests that female perpetrators are more likely to be unemployed, to have suffered from a substance abuse disorder at some point in life and to have been victimized by the victim. In other words, scrutiny of these characteristics reveals that females who commit partner-related homicides are qualitatively and clinically different from their male counterparts. Furthermore, the prevailing feature of intoxication in connection to the crime, both in male and female perpetrators, indicates that perpetrators might benefit from elements of substance abuse treatment in interventions targeting partner violence.
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| 2. |
- Johansson, Anette, et al.
(författare)
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Severity of past aggression coupled to higher baseline oxygenated hemoglobin in right dorsolateral prefrontal cortex in schizophrenia
- 2019
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Objective: Are there differences in working memory task related oxygenated hemoglobin (HbO) in dorsolateral prefrontal cortex in those with schizophrenia, who had committed instrumental violence as opposed to reactive aggression? Is there any relationship to the severity of such aggression?Methods: 22 stable forensic psychiatric inpatients with schizophrenia spectrum disorders (20 schizophrenia) were rated on symptom scales. Their most severe aggressive act was rated according to Cornell’s classification of instrumental or reactive aggression. The severity of aggression was also noted. Subjects completed a computerized Corsi-block-tapping test during functional near infrared spectroscopy (fNIRS). Correlation analyses and GLM were used to identify factors that correlated with oxygenated hemoglobin signal in optodes 1 and 15 (dorsolateral prefrontal cortex DLPFC).Results / Discussion: Spearman Rank correlations with task-minus-baseline HbO in optode 1(left DLPFC) were found for total antipsychotic daily dose and scores on block 5 of the Corsi task, as well as between daily dose and negative symptom scores. Correlations were found between baseline HbO in optode 1 and 15, as well as in task-minus-baseline. There was no effect of type of aggression on optode 1 or 15 baseline or task-minus-baseline HbO when controlled for the above. Past severe aggression, controlled for SANS, daily dose and Corsi correct responses correlated with higher HbO at baseline in optode 15 (F=9.45 p=0.007, adj R2=0.33, p=0.032) as opposed to task related HbO. Baseline and task-minus baseline optode 1 HbO correlated only with antipsychotic dose and Corsi score.
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| 3. |
- Nilsonne, Gustav, et al.
(författare)
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Effects of 25 mg oxazepam on emotional mimicry and empathy for pain : a randomized controlled experiment
- 2017
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Ingår i: Royal Society Open Science. - : The Royal Society. - 2054-5703. ; 4:3
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Tidskriftsartikel (refereegranskat)abstract
- Emotional mimicry and empathy are mechanisms underlying social interaction. Benzodiazepines have been proposed to inhibit empathy and promote antisocial behaviour. First, we aimed to investigate the effects of oxazepam on emotional mimicry and empathy for pain, and second, we aimed to investigate the association of personality traits to emotional mimicry and empathy. Participants (n= 76) were randomized to 25mg oxazepam or placebo. Emotional mimicry was examined using video clips with emotional expressions. Empathy was investigated by pain stimulating the participant and a confederate. We recorded self-rated experience, activity in major zygomatic and superciliary corrugator muscles, skin conductance, and heart rate. In the mimicry experiment, oxazepam inhibited corrugator activity. In the empathy experiment, oxazepam caused increased self-rated unpleasantness and skin conductance. However, oxazepam specifically inhibited neither emotional mimicry nor empathy for pain. Responses in both experiments were associated with self-rated empathic, psychopathic and alexithymic traits. The present results do not support a specific effect of 25mg oxazepam on emotional mimicry or empathy.
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| 4. |
- Persson, Mats, et al.
(författare)
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Self-reported violent ideation and its link to interpersonal violence among offenders with mental disorders and general psychiatric patients
- 2018
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Ingår i: Psychiatry Research. - : ELSEVIER IRELAND LTD. - 0165-1781 .- 1872-7123. ; 261, s. 197-203
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Tidskriftsartikel (refereegranskat)abstract
- This study aims at comparing mentally disordered offenders and general psychiatric patients regarding violent ideation and at exploring its association with interpersonal violence. We recruited 200 detainees undergoing forensic psychiatric evaluation and 390 general psychiatric patients at discharge. At baseline, they were asked about violent ideation; at the 20-week follow-up, information about violent acts was gathered from crime conviction registry, interviews, and records. The lifetime prevalence of violent ideation was 32.5% for offenders and 35.6% for patients; the corresponding two-month prevalence was 22.5% and 21.0%, respectively. For the both samples combined, those with violent ideation in their lifetime were significantly more prone to commit violent acts during follow-up than those without such ideation, OR = 2.65. The same applied to the patient sample, OR = 3.41. In terms of positive predictive values, fewer than 25% of those with violent ideation committed violent acts. Contrary to our hypothesis, the prevalence of violent ideation did not differ significantly between offenders and patients. However, there was support for the hypothesized association between violent ideation and violent acts on a group level. On an individual level, the clinician should consider additional factors when assessing the risk for violent acts.
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| 5. |
- Persson, Mats, et al.
(författare)
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Violence During Imprisonment, Forensic Psychiatric Care, and Probation: Correlations and Predictive Validity of the Risk Assessment Instruments COVR, LSI-R, HCR-20(V3), and SAPROF
- 2017
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Ingår i: International Journal of Forensic Mental Health. - : ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD. - 1499-9013 .- 1932-9903. ; 16:2, s. 117-129
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Tidskriftsartikel (refereegranskat)abstract
- This prospective, naturalistic, cohort study was designed to report the one-year rate of violence among Swedish forensic psychiatric clients, during forensic psychiatric care, prison, and probation. Another purpose was to validate the risk assessment instruments COVR, LSI-R, HCR-20(V3), and SAPROF in these settings. We assessed 200 detainees undergoing a forensic psychiatric investigation in Stockholm by means of the four instruments, 193 of them were followed up for one year. Violent acts were committed by 23.3% of the participants, and occurred more often at forensic psychiatric hospitals than correctional settings. According to the analyses, the predictive validity was small for COVR (AUC = .61), medium for LSI-R (AUC = .70), and large for HCR-20(V3) (AUC = .79) and SAPROF (AUC = .78).
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| 6. |
- Persson, Mats, et al.
(författare)
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Violent victimization and health service utilization in a forensic psychiatric context: a comparison between offenders with mental disorders and matched controls
- 2017
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Ingår i: BMC Psychiatry. - : BIOMED CENTRAL LTD. - 1471-244X. ; 17
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Tidskriftsartikel (refereegranskat)abstract
- Background: Offenders with mental disorders constitute a particularly exposed group in society, with high rates of morbidity, mortality, and social deprivation. Often thought of primarily as perpetrators, these individuals may also be subjected to violence. Previous research indicates that violent victimization during lifespan is a risk factor for violent perpetration among psychiatric patients, but victimization studies on the group of offenders with mental disorders are scarce. Health services are pivotal to this group, but although most individuals do utilize these services, their vulnerability seems to remain. This study aimed at exploring the rates of victimization and health service utilization, including perceptions of unmet health care needs, among offenders with mental disorders. Methods: Two hundred detainees undergoing a forensic psychiatric evaluation in Stockholm were asked about violent victimization and health service utilization. Each detainee was compared with three controls from the general population, matched regarding age, sex, and occupation. Results: Victimization during the past year was reported by 52.3% of the detainees and 11.1% of the controls, with a corresponding risk ratio of 8.2. Health service utilization during the past three months was reported by 47.7 and 23.7%, respectively (risk ratio 2.0); and unmet health care needs by 42.2 and 16.7%, respectively (risk ratio 3.4). There was no distinct association between victimization and health service utilization among detainees. Conclusions: Offenders with mental disorders are at great risk of being victimized, and they experience impediments to receiving requisite health care. A possible way to reduce victimization and improve health service utilization may be to establish interdisciplinary yet specialized health centers with outreach teams but without complicated referral procedures.
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| 7. |
- Sturup, Joakim, et al.
(författare)
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Risk assessments and recidivism among a population-based group of Swedish offenders sentenced to life in prison
- 2016
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Ingår i: CBMH. Criminal behaviour and mental health. - : Wiley. - 0957-9664 .- 1471-2857. ; 26:2, s. 124-135
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundIn Sweden, the number of people serving life sentences has steadily increased. To date, few studies have examined the recidivism rate or the predictive validity of different risk assessment instruments in this group. AimsOur aim was to test the predictive validity among inmates serving life sentences of two different instruments used for assessing riskthe Historical, Clinical and Risk Management-20 (HCR-20), most widely used in clinical populations, and the Psychopathy Checklist-Revised (PCL-R), commonly applied in both penal and clinical settings. MethodNinety-eight life-sentenced prisoners were included, 26 of whom were released during the study period. Data on risk assessments and dates for release were collected from administrative records, while recidivism data were retrieved from a national database on criminal convictions. ResultsSex offenders obtained the highest scores and inmates charged with domestic violent offences obtained the lowest scores on both instruments. The released prisoners were followed for a mean period of 33months. During this time five prisoners (19%) reoffended, four of them violently, with an average time to recidivism of 10months. Only PCL-R Facet 4, which reflects antisocial features, was significantly associated with recidivism. ConclusionsThis small, but population-based, study demonstrates that antisocial behaviour shows incremental predictive validity for reoffending among life-sentenced offenders, but other measures have little to add for this specific task. The fact that those life sentenced prisoners who reoffended did so so soon after release should prompt allocation of earlier interventions towards preventing this.
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| 8. |
- Sturup, Joakim, et al.
(författare)
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Unsolved homicides in Sweden : A population-based study of 264 homicides
- 2015
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Ingår i: Forensic Science International. - : Elsevier BV. - 0379-0738 .- 1872-6283. ; 257, s. 106-113
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Tidskriftsartikel (refereegranskat)abstract
- The clearance rates for homicides have decreased internationally. This retrospective population-based study of all Swedish homicide incidents between 2007 and 2009 (n = 264) aims to investigate factors associated with solvability in homicides. Victims were identified in an autopsy registry and offenders in a criminal-conviction registry. Autopsy reports, police files, court verdicts and criminal records were systematically collected and linked. The clearance rate was 86.4% (n = 228), and almost three quarters of cases (71.9%) were solved within the first week. Nine factors were significantly associated with the case status; however, only four factors remained significant in the multivariate logistic-regression model. Cases were more likely to be solved if there was an eyewitness and if the victim was intoxicated with alcohol. Moreover, cases were less likely to be solved if the victim had a criminal record in the past five years and was killed by a firearm. In the final model, a Cox proportional-hazards model, where time to arrest was taken into account, only alcohol intoxication were positively and firearms negatively significantly associated with clearance status. The study concludes that cases involving these factors should be granted extra, intensive and lasting resources.
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| 9. |
- Sygel, Kristina, et al.
(författare)
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The effect of gender on the outcome of forensic psychiatric assessment in Sweden : A case vignette study
- 2017
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Ingår i: CBMH. Criminal behaviour and mental health. - : Wiley. - 0957-9664 .- 1471-2857. ; 27:2, s. 124-135
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundPrevious research suggests that female violent offenders at risk of a prison sentence are more likely than their male counterparts to be assessed as having mental health problems of a nature or degree that would lead to a court requirement for hospital treatment.Aims/hypothesesTo test the hypothesis that there is bias towards hospital disposal of female compared with male violent offenders with mental disorder.MethodsIn Sweden, the National Board of Forensic Medicine oversees all assessments of mental disorder for the criminal courts. Twenty-six Board appointed forensic psychiatrists, psychologists and social workers each independently assessed six case vignettes for fit with criteria for ‘severe mental disorder’, a prerequisite for hospital disposal from court. Each gender neutral vignette described a person who had been convicted of serious assault and had a major mental disorder. A gender was then assigned to each offender randomly within a block design, thus varying between sets. Participants were blind to the main aim of the study and the gender variation.ResultsThere was no significant association between gender of the person assessed and judgement that s/he had a ‘severe mental disorder’. An offender depicted as having mental retardation was more likely to be assessed as at high risk of criminal recidivism if portrayed as female, regardless of the sex, place of work or level of experience of the assessor.ConclusionWe found no evidence of gender bias in determining appropriateness of a hospital disposal of an offender with mental disorder. The difference in assessment of recidivism according to sex of the patient was only in relation to mental retardation; further research would be needed to able to interpret this. As researchers in other countries have reported gender bias in disposals from court, our findings may provide support for a centralised forensic psychiatric assessment board and formal, on-going training.
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| 10. |
- Sörman, Karolina, et al.
(författare)
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Reliability and Construct Validity of the Psychopathic Personality Inventory-Revised in a Swedish Non-Criminal Sample : A Multimethod Approach including Psychophysiological Correlates of Empathy for Pain
- 2016
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Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 11:6
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Tidskriftsartikel (refereegranskat)abstract
- Cross-cultural investigation of psychopathy measures is important for clarifying the nomological network surrounding the psychopathy construct. The Psychopathic Personality Inventory-Revised (PPI-R) is one of the most extensively researched self-report measures of psychopathic traits in adults. To date however, it has been examined primarily in North American criminal or student samples. To address this gap in the literature, we examined PPI-R’s reliability, construct validity and factor structure in non-criminal individuals (N = 227) in Sweden, using a multimethod approach including psychophysiological correlates of empathy for pain. PPI-R construct validity was investigated in subgroups of participants by exploring its degree of overlap with (i) the Psychopathy Checklist: Screening Version (PCL:SV), (ii) self-rated empathy and behavioral and physiological responses in an experiment on empathy for pain, and (iii) additional self-report measures of alexithymia and trait anxiety. The PPI-R total score was significantly associated with PCL:SV total and factor scores. The PPI-R Coldheartedness scale demonstrated significant negative associations with all empathy subscales and with rated unpleasantness and skin conductance responses in the empathy experiment. The PPI-R higher order Self-Centered Impulsivity and Fearless Dominance dimensions were associated with trait anxiety in opposite directions (positively and negatively, respectively). Overall, the results demonstrated solid reliability (test-retest and internal consistency) and promising but somewhat mixed construct validity for the Swedish translation of the PPI-R.
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