Pathological impulsive aggressivity might be associated with lower serotonergic innervation in the anterior cingulate cortex, a region that plays an important role in affective regulation.
In this study, we examined the unique contribution of pornography consumption to the longitudinal prediction of criminal recidivism in a sample of 341 child molesters. We specifically tested the hypothesis, based on predictions informed by the confluence model of sexual aggression that pornography will be a risk factor for recidivism only for those individuals classified as relatively high risk for re-offending. Pornography use (frequency and type) was assessed through self-report and recidivism was measured using data from a national database from the Royal Canadian Mounted Police. Indices of recidivism, which were assessed up to 15 years after release, included an overall criminal recidivism index, as well as subcategories focusing on violent (including sexual) recidivism and sexual recidivism alone. Results for both frequency and type of pornography use were generally consistent with our predictions. Most importantly, after controlling for general and specific risk factors for sexual aggression, pornography added significantly to the prediction of recidivism. Statistical interactions indicated that frequency of pornography use was primarily a risk factor for higher-risk offenders, when compared with lower-risk offenders, and that content of pornography (i.e., pornography containing deviant content) was a risk factor for all groups. The importance of conceptualizing particular risk factors (e.g., pornography), within the context of other individual characteristics is discussed.
Approximately 6.5 years after their conviction, the percentage of incest offenders who had committed a sexual, violent, or criminal offense of any kind was 6.4, 12.4, and 26.7, respectively. The sexual recidivists scored higher on the Michigan Alcohol Screening Test (MAST), and the Psychopathy Checklist-Revised (PCL-R). The violent recidivists had higher MAST and PCL-R scores as well as more violence in their police records. Regarding any criminal recidivism, recidivists were older and reported higher rates of being physically abused, and being removed from their homes prior to 16 years of age. They demonstrated more hostility on the Buss-Durkee Hostility Inventory, and higher MAST and PCL-R scores. They also had more previous charges or convictions for sexual, violent, and criminal acts. A combination of total criminal offenses, PCL-R, age, and the number of previous sexual offenses correctly classified 97.6% of the nonrecidivists and 35.4% of the recidivists for any reoffense.
Seventeen extrafamilial homicidal child molesters (HCM) were compared to 35 convicted extrafamilial child molesters (CM) who had not murdered, or attempted to murder, their victims. The two groups did not differ on age, IQ, education, history of marriage, or family history, although marriage rates of both groups were well below the national average. Similarly, both groups had high rates of features representing family instability. HCM more frequently victimized strangers. The results on the self-report psychological inventories, the Derogatis Sexual Functioning Inventory (DSFI) and the Buss-Durkee Hostility Inventory (BDHI), did not distinguish between the groups, although the DSFI revealed sexual inadequacy in both groups. The BDHI did not describe the groups as pathological. The Psychopathy Checklist—Revised Total Score, Factor 1, and Factor 2 described both groups as demonstrating high levels of psychopathy, with the HCM scoring significantly higher. Factor 1 and Factor 2 scores placed the HCM group in the 93rd and 82nd percentiles, respectively, compared to published norms for forensic patients. A greater proportion of HCM suffered from antisocial personality disorders and paraphilias, especially sexual sadism. Over 53% of the HCM, and none of the CM, were comorbid for pedophilia and sexual sadism. Significantly more HCM received three or more DSM III-R diagnoses. The phallometric assessments generally supported DSM diagnoses. The HCM demonstrated significantly higher levels of deviant arousal to pedophilic and adult assault stimuli. Police files revealed that, prior to the index offense, a significantly greater proportion of HCM had been charged with, or convicted of, violent nonsexual, and sexual offenses. The HCM had been charged with, or convicted of, more than 2.5 times as many criminal charges than the CM. A discriminant function analysis revealed that two variables, Factor 1 of the PCL-R and the number of violent entries in the police records, correctly predicted 78.6% of the HCM and 97.1% of the CM. Implications for understanding homicidal child molesters and for future research are discussed.
One hundred ninety-two convicted extrafamilial child molesters were followed for an average of 7.8 years after their conviction. The percentage of men who had committed a sexual, a violent, or any criminal offense by the 12th year was 15.1, 20.3, and 41.6, respectively. The sexual recidivists, compared with the nonrecidivists; demonstrated more problems with alcohol and showed greater sexual arousal to assaultive stimuli involving children than to mutually consenting stimuli with children. The violent recidivists, compared with the nonrecidivists, were more likely to have a history of violence in the families in which they were raised and were rated significantly more psychopathic on the Psychopathy Checklist--Revised (PCL-R). They also showed more sexual arousal to stimuli depicting mutually consenting sexual interactions with children than to adult stimuli. In terms of any criminal recidivism, recidivists were younger, had completed fewer years of school, and were raised in psychologically more harmful family environments compared with nonrecidivists. They also reported that, before 16 years of age, they were more likely to have been physically abused and were more likely to have been removed from their homes compared to those that did not recidivate. In addition, recidivists demonstrated more general hostility on the Buss-Durkee Hostility Inventory and were rated significantly more psychopathic on the PCL-R. The phallometric assessments revealed, that the criminal recidivists, compared to the nonrecidivists, showed more sexual arousal to stimuli depicting coercive sexual activity with children than consenting sexual activities with children. In addition, they showed more sexual arousal to scenes depicting adult rape then adult mutually consenting sex. Finally, the recidivists also had more charges or convictions for violence and any criminal acts. The small number of significant differences between recidivists and nonrecidivists in the sexual and violent categories precluded an attempt to determine which combination of factors meaningfully predicted reoffending. However, for criminal recidivism, a stepwise discriminant function analysis to assess the combination of factors that most successfully distinguished between groups in terms of criminal recidivism was significant, with subjects' age, total number of criminal convictions, and pedophile assault index being retained for optimal prediction. The procedure correctly classified 70.6% of the original group, 82.8% of the nonrecidivists, and 52.6% of the recidivists. PCL-R Total Score alone was equally successful in a similar discriminant function.
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