Samuel J Leistedt

Samuel J Leistedt
Université Libre de Bruxelles | ULB · Department of Psychiatry

MD, PhD

About

45
Publications
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630
Citations

Publications

Publications (45)
Article
Résumé Objectifs Le Joker est considéré comme l’un des plus grands méchants de bandes dessinées et personnages de fiction jamais créés. La popularité mondiale du Joker a conduit à l’apparition de ce personnage dans différents formats artistiques, notamment des dessins animés, des séries et des films, ainsi que sur des marchandises, comme des vêtem...
Article
Résumé La psychiatrie médico-légale, indispensable au processus judiciaire dans nos États de droit, est une discipline en pleine évolution. Au sein même de la matière, de nombreuses missions coexistent et soumettent les psychiatres à de nombreux exercices qui se caractérisent par leur transdisciplinarité. L’une des principales missions des experts...
Article
Paedophilia is a paraphilia characterised by behaviour, drives or sexual fantasies that are intense and recurring and that generally involve children. This sexual deviation is often linked to personal distress, to a significant alteration of personal, family, professional and social life, in a general sense. In our modern Western societies, paedoph...
Article
Paedophilia is a paraphilia characterised by behaviour, drives or sexual fantasies that are intense and recurring and that involve children, in a general sense. This sexual deviation is often linked to personal distress, to a significant alteration of personal, family, professional and social life, in a general sense. In our modern Western societie...
Article
Full-text available
Forensic psychiatry is a discipline dating from Antiquity. A discipline, which is in Belgium a relatively recent development, forensic psychiatry is focussed on two distinct areas, namely the care of detained patients and expertise. Care concerns those detained patients as defined by the Law of 5 May 2014, specifically those who have been diagnosed...
Article
Forensic psychiatry is a medical (sub-) speciality covering a variety of different fields, such as general psychiatry, criminology, law, anthropology and sociology. Experts in forensic psychiatry are required to have a base of specific training, eclectic knowledge and correct ethical and professional practice. The cross-disciplinary nature of foren...
Article
Full-text available
In this article, we report a male patient that developed psychotic symptoms after the excision of an arachnoid cyst from the posterior fossa detected by magnetic resonance and subsequent clinical improvement after anti-psychotic treatment.
Article
Objectives: Theories of religion are essential for understanding current trends in terrorist activities. The aim of this work is to clarify religion's role in facilitating terror and outline in parallel with recent theoretical developments on terrorism and human behaviour. Methods: Several databases were used such as PubCentral, Scopus, Medline...
Article
Introduction Because of their intrinsic characteristics, forensic interviews with terrorist suspects are perhaps one of the most challenging interviews forensic psychiatrists and psychologists will experience. Objectives This work presents a theoretical and practical framework for understanding terrorist individual psychology and effective intervi...
Article
Résumé Les sciences comportementales et sociales sont utiles pour recueillir et analyser les données de renseignement, pour comprendre le terrorisme et pour élaborer des stratégies de lutte contre le terrorisme. Ce travail vise à examiner les concepts psychopathologiques du terrorisme et discute des rôles en développement des scientifiques comporte...
Conference Paper
Conventional sleep analysis relies primarily on electroencephalogram (EEG) waveform features assessed in concert with eye movements, respiration and muscle tone. We explore a complementary "complexity domain" approach based on multiscale entropy (MSE) analysis of EEG signals and discuss its relationships to standard sleep analysis and to that based...
Article
This study aimed to provide an in-depth description of the radicalization process, which is a very important step in terrorist activities. The author proposes a translational analysis that is first based on the author's experience in the psychological evaluation of terrorist behavior and second on an exhaustive review of the current literature. The...
Article
Background: This retrospective and observational study is based on the hypothesis that sex offenders have experienced trauma and/or educational dysfunction which have a responsibility in theirs crimes of sexual type. The purpose of this study is to highlight these disturbances, develop a typology of sex offenders and offer a reflection on elements...
Article
The problem of fraud, especially scientific fraud, is global and its identification risk is still in its infancy. Based on an in-depth analysis of several financial and scientific fraud trials, the authors propose a new and integrative model of scientific fraud.This model identifies two major levels for committing fraud: (i) at the personal skills...
Article
Ce travail traite de l’expertise mentale. Plus précisément, il aborde l’exercice, extrêmement complexe, de la détermination de la responsabilité d’un individu par rapport à un délit spécifique. Cet article délivre avant tout un constat et soulève de nombreuses questions par rapport à l’émergence de nouvelles disciplines qui se situent entre le Droi...
Article
Full-text available
Monitoring parameters for anorexia nervosa include clinical, biological and psychological factors. Many research groups are currently trying to identify parameters more likely to predict the severity or the evolution of the illness. Body composition has been proposed as one of those parameters. The aim of the present study is to demonstrate that me...
Article
The authors investigated the relationship between cinema and psychopathy to describe and analyze the portrayal of fictional psychopathic characters in popular films and over cinematic history. From 400 films (1915-2010), 126 fictional psychopathic characters (21 female and 105 male) were selected based on the realism and clinical accuracy of their...
Article
The law of June 26, 1990 (protection measure of the mental patients) has replaced the old law of collocation of 1850 (review in 1873). Conceived in the line of the principles of the European Convention of the Humans right, it constitutes an important reform of the involuntary treatment of the mental patients and recalls, without any doubt, that the...
Article
Full-text available
Psychopathy is a personality disorder frequently associated with immoral behaviors. Previous behavioral studies on the influence of psychopathy on moral decision have yielded contradictory results, possibly because they focused either on judgment (abstract evaluation) or on choice of hypothetical action, two processes that may rely on different mec...
Article
Behavioural and social sciences are useful in collecting and analysing intelligence data, understanding terrorism, and developing strategies to combat terrorism. This article aims to examine the psychopathological concepts of terrorism and discusses the developing roles for behavioural scientists. A systematic review was conducted of studies invest...
Article
Depression is a heterogeneous disorder with a highly variable course. Individual responses to treatment are inconsistent, and an established mechanism remains elusive. The classical hypothesis of depression posits that mood disorders are caused by a chemical imbalance in the brain that can be corrected with antidepressant drugs. However, recent evi...
Article
Full-text available
Cunning, manipulation and pathological lie are important characteristics for the construct of psychopathy. These characteristics also present a real challenge at the judiciary processes therapeutic level. We also consider their implications for the legal and etiological issues.
Article
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Young women are at risk of mental problem during pregnancy and postpartum. It is particularly important that the mental health of childbearing women is stable. However, all psychotropic medications diffuse across the placenta and are excreted into breast milk. The fetus is thus at risk of teratogenicity and postnatal behavioural sequelae. Which are...
Article
Full-text available
Major depression affects multiple physiologic systems. Therefore, analysis of signals that reflect integrated function may be useful in probing dynamical changes in this syndrome. Increasing evidence supports the conceptual framework that complex variability is a marker of healthy, adaptive control mechanisms and that dynamical complexity decreases...
Article
This article provides an in-depth description of the case of Michel Fourniret (MF), a French serial killer who, with his wife Monique Olivier (MO), confessed to kidnapping, raping, and murdering at least nine girls during the 1980s and 1990s. Using information from writers, witnesses, trial experts, and regarding current forensic literature, we uti...
Article
Psychopathy related research has traditionally focused on males. Today, numerous evidences testify to the existence of the disorder in women. Nevertheless the possibility to transpose this concept unchanged to women is debated, as it was initially developed in male populations. Current researches didn't notice major gender differences in the struct...
Article
Full-text available
Despite numbers of publications and effort to try to establish the definition, the classification, the epidemiology, the clinical aspects and the psychopathology of serial killers, a universal consensus seems to say the least. Crime, though reduced in some countries, appears to impact more and more consistent worldwide, generating controversial ide...
Article
En 1880, le médecin français Jules Cotard présente un tableau clinique de délire de négation en rapport avec le corps et survenant dans un contexte de dépression mélancoliforme sévère. Dans sa description clinique classique, le syndrome de Cotard se caractérise par une triade séméiologique : négation d’organe, délires d’immortalité, d’énormité et i...
Article
Full-text available
Although psychopathy has traditionally been cited as a disorder of personality, confusion arises as the term is used interchangeably with the terms antisocial personality disorder of the Diagnostic and Statistical Manual of Mental Disorders, fourth edition, text revision (DSM-IV TR) or dissocial personality disorder, both of which are largely behav...
Article
Recent evidence suggests that problems in information processing within neural networks may underlie depressive disease. In this study, we investigated whether sleep functional brain networks are abnormally organized during a major depressive episode (MDE). We characterized spatial patterns of functional connectivity by computing the "synchronizati...
Article
To determine if chronic insomnia alters the relationship between heart rate variability and delta sleep determined at the EEG. After one night of accommodation, polysomnography was performed in 14 male patients with chronic primary insomnia matched with 14 healthy men. ECG and EEG recordings allowed the determination of High Frequency (HF) power of...
Article
Full-text available
For centuries the criminal justice system has struggled to define the methodology of and the justifications for social control of sexual behavior that does not conform to community mores. This poster compares and contrasts the historical and contemporary attempts in the United States, Canada, Belgium, the United Kingdom, and Germany to address the...
Article
Full-text available
Although serial killers have always existed, individualizing this concept as well as giving a consensual definition and universal typology is still a problem nowadays. The authors present an overview based on the current literature, more specifically on definitions, categorization, epidemiology and clinical area. Psychopathological aspects are also...
Article
The aim of the present study is to investigate the scaling properties of the sleep electroencephalogram (EEG) in remitted depressed men, and to evaluate if a past history of major depressive disorder (MDD) could modify significantly and definitively, as a "scar marker," the dynamics of the sleep EEG time series. Whole night sleep electroencephalogr...
Article
The aim of the present paper is to study the fluctuations of the sleep EEG over various time scales during a specific pathological condition: major depressive episode. Focus is made on scaling behaviour, which is the signature of the absence of characteristic time scale, and the presence of long-range correlations associated to physiological consta...
Article
Nowadays, a high percentage of the population in modern societies suffers from various kinds of sleep disturbances, in part due to the impact of increased socio-cultural stress factors. The most common sleep complaint is insomnia. Psychophysiological insomnia is one of the most frequent forms of sleep disturbances. It is a type of conditioned or le...

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