Sex Differences in QEEG in Psychopath Offenders

2019 ◽  
Vol 51 (3) ◽  
pp. 146-154
Author(s):  
Ana Calzada-Reyes ◽  
Alfredo Alvarez-Amador ◽  
Lídice Galán-García ◽  
Mitchell Valdés-Sosa
Keyword(s):  
Brain Activity ◽  
Quantitative Eeg ◽  
Beta Band ◽  
Significant Group ◽  
Psychopathy Checklist ◽  
Synchronization Likelihood ◽  
Eeg Abnormalities ◽  
Psychopathy Checklist Revised ◽  
Hare Psychopathy Checklist ◽  
Important Field

Introduction. Functional brain differences related to sex in psychopathic behavior represent an important field of neuroscience research; there are few studies on this area, mainly in offender samples. Objective. The aim of this study was to investigate the presence of electrophysiological differences between male and female psychopath offenders; specifically, we wanted to assess whether the results in quantitative EEG, low-resolution electromagnetic tomography (LORETA), and changes in synchronous brain activity could be related to sex influence. Sample and Methods. The study included 31 male and 12 female psychopath offenders, according to the Hare Psychopathy Checklist–Revised criteria from 2 prisons located in Havana City. The EEG visual inspection characteristics and the use of frequency domain quantitative analysis techniques are described. Results. The resting EEG visual analyses revealed a high percentage of EEG abnormalities in both studied groups. Significant statistical differences between the mean parameters of cross spectral measures between psychopathic offender groups were found in the beta band at bilateral frontal derivation and centroparietal areas. LORETA showed differences especially in the paralimbic and parieto-occipital areas Synchronization likelihood revealed a significant group effect in the 26 to 30 Hz band. These results indicate that combining quantitative EEG, LORETA analysis, and synchronization likelihood may improve the neurofunctional differentiation between psychopath offenders of both sexes.

Statement of concerned experts on the use of the Hare Psychopathy Checklist—Revised in capital sentencing to assess risk for institutional violence.

2020 ◽  
Vol 26 (2) ◽  
pp. 133-144 ◽  
Author(s):  
David DeMatteo ◽  
Stephen D. Hart ◽  
Kirk Heilbrun ◽  
Marcus T. Boccaccini ◽  
Mark D. Cunningham ◽  
...  
Keyword(s):  
Capital Sentencing ◽  
Psychopathy Checklist ◽  
Institutional Violence ◽  
Psychopathy Checklist Revised ◽  
Hare Psychopathy Checklist

Comparative Validity Analysis of Multiple Measures of Violence Risk in a Sample of Criminal Offenders

2005 ◽  
Vol 32 (5) ◽  
pp. 479-510 ◽  
Author(s):  
Kevin S. Douglas ◽  
Melissa Yeomans ◽  
Douglas P. Boer
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Clinical Judgment ◽  
Violent Offender ◽  
Violence Risk ◽  
Criminal Offenders ◽  
Psychopathy Checklist ◽  
Psychopathy Checklist Revised ◽  
Hare Psychopathy Checklist ◽  
Risk Judgments

This study compared the predictive validity of multiple indices of violence risk among 188 general population criminal offenders: Historical-Clinical-Risk Management-20 (HCR-20) Violence Risk Assessment Scheme, Violence Risk Appraisal Guide (VRAG), Violent Offender Risk Assessment Scale (VORAS), Hare Psychopathy Checklist-Revised (PCL-R), and Screening Version (PCL:SV). Several indices were related to violent recidivism with large statistical effect sizes: HCR-20 (Total, Clinical and Risk Management scales, structured risk judgments), VRAG, and behavioral scales of psychopathy measures. Multivariate analyses showed that HCR-20 indices were consistently related to violence and that the VRAG entered some analyses. Findings are inconsistent with a position of strict actuarial superiority, as HCR-20 structured risk judgments—an index of structured professional or clinical judgment—were as strongly related to violence.

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