Luk Gijs

Luk Gijs
Institute of Family and Sexuality Studies · Department of Neurosicences

About

70
Publications
21,258
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1,193
Citations
Citations since 2016
27 Research Items
747 Citations
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
2016201720182019202020212022020406080100120
Introduction

Publications

Publications (70)
Article
Full-text available
Background: Transgender healthcare is a rapidly evolving interdisciplinary field. In the last decade, there has been an unprecedented increase in the number and visibility of transgender and gender diverse (TGD) people seeking support and gender-affirming medical treatment in parallel with a significant rise in the scientific literature in this are...
Article
Full-text available
Sexual-wellbeing is recognized as an important aspect of quality-of-life. Yet, no overview exists of which aspects of sexual-wellbeing have been assessed in trans individuals seeking or undergoing medical treatment, nor is it clear what tools are used to evaluate the effect of medical treatment on sexual-wellbeing. First, to identify which topics p...
Article
Full-text available
In most theoretical models, sexual desire for one’s partner is predominantly conceptualized from an individual perspective. There is, however, a growing body of empirical evidence on the dyadic aspects of sexual desire. That evidence is as yet not well-integrated into theoretical conceptualizations of sexual desire. Aiming to fill this gap, we pres...
Article
Samenvatting Androgeen deprivatie therapie (ADT) is een waardevolle aanvulling bij psychotherapeutische behandelingen bij mannen met een parafiele stoornis en een verhoogd risico op recidive. De behandeling kan echter gepaard gaan met hinderlijke tot ernstige bijwerkingen. Ook wordt het vrijwillige karakter van de noodzakelijke geïnfomeerde toestem...
Article
Identifying pedophilic sexual interest among persons who have sexually offended against children (PSOCs) is important for risk assessment because not all PSOCs are pedophilic. Existing physiological and self-report methods have several limitations. In the present study, sexual interest was assessed indirectly by means of a computer task: the Choice...
Article
Full-text available
Although dynamic risk factors are considered important in the assessment and treatment of adult male sex offenders, little is known about their interrelationships. We apply network analysis to assess their associations and to provide an analysis of their shortest pathways to sexual and violent (including sexual contact) recidivism. Analyses reveale...
Chapter
This chapter starts with an introduction that offers a short overview of the prevalence, risk, and costs of violence. Then, the aggression-related concepts that are frequently used in this book are defined, followed by a description of the most important theories of general aggression, sexual aggression, and those relating to treatment programs. Ex...
Chapter
This chapter describes a literature search that was performed to review publications on the effectiveness or outcome of cognitive-behavioral treatment programs for violent and sexually violent offenders. The review aimed to identify factors and conditions that contribute to a decrease in recidivism rate. Many programs have been evaluated with a bro...
Book
This book examines the assessment and obligatory treatment programs for violent and sexually violent offenders – primarily adolescents and adults – diagnosed with cluster B personality disorder or a conduct disorder. It describes concepts, theories, and legal aspects as well as the psychological and neurobiological characteristics of violent and se...
Article
Besides erectile difficulties, age-related prevalence rates of male sexual difficulties remain inconsistent. Moreover, apart from erectile and premature ejaculation, epidemiological studies that provide detailed age-related prevalence rates of other sexual difficulties (e.g. lack of sexual desire) in men are rare. Prevalence rates of sexual dysfunc...
Article
While not all sexual difficulties cause distress, research and clinical experience suggest that, apart from personal distress, partner and relational sexual distress are also often an important reason to seek professional help. The current study explored the associations between personal, perceived partner, and relational distress that men and wome...
Article
Full-text available
This meta-analysis is the first to our knowledge to evaluate the predictive properties of dynamic sex offender risk assessment instruments, which are designed to assess factors associated with recidivism that are amenable to change. Based on 52 studies (N 13,446), we found that dynamic risk assessment instruments have small-to-moderate predictive p...
Article
Full-text available
Although impaired sexual function is relatively common, not all sexual impairments are associated with distress. To date, most studies on protective and risk factors for sexual distress have asked about distress in a more general manner and have failed to distinguish different dimensions of sexual distress.
Article
Introduction: Because severity and duration of sexual impairment and any distress caused by the sexual impairment are not assessed in most epidemiologic studies on sexual dysfunction, the available prevalence rates are probably an overestimation. Aims: To provide prevalence estimates of severe and persistent sexual difficulties that cause personal...
Article
Introduction: Although age-related prevalence rates of female sexual difficulties, i.e., difficulties with sexual desire, arousal, orgasm, or pain have occasionally been studied-with mostly inconsistent results-the age-related prevalence rates of female sexual dysfunctions, i.e., sexual difficulties that are associated with sexual distress, have n...
Article
Full-text available
Abstract We investigated whether baseline and therapy process characteristics of 82 heterosexual men participating in an internet-based sex therapy study predict post-treatment sexual functioning. Problem severity, baseline sexual desire and satisfaction, but also partner problems and quality of the therapeutic relationship are predictive for sexua...
Chapter
For many decades of the twentieth century, gender dysphoria was seen as an intrinsic symptom of another psychiatric disorder (e.g., schizophrenia) that should be resolved by addressing the “underlying” psychiatric disorder. DSM-III (American Psychiatric Association, 1980) broke with that view and classified the gender identity disorders as a separa...
Article
While lack of sexual attraction, lack of sexual behavior, and self-identification as asexual have been used as criteria to define asexuality, it is not known how much they overlap in describing the same group of people. This study aimed to assess how many individuals could be identified as asexual based on each of these criteria and on combinations...
Article
Abstract This study aimed to explore how asexual women experience their asexual identity, sexuality and relationships. Participants were recruited through the website of the Asexuality Visibility and Education Network and posts on several health- and lifestyle related websites. Interviewees were 9 women between 20 and 42 years old. Data were collec...
Chapter
This chapter gives an overview of the care for adults with gender dysphoria from the last decades of 1900 until recently, with a short vision for the future. The view on the care of individuals with gender issues has changed tremendously. This evolution is described here: from a psychotic illness, through a rather strict definition of “transsexuali...
Article
As most epidemiological surveys on sexual problems have not included assessment of associated distress, the principal aim of this study was to provide prevalence estimates of both DSM-IV-TR-defined (American Psychiatric Association [APA], 20002. American Psychiatric Association . ( 2000 ). Diagnostic and statistical manual of mental disorders , (4t...
Article
Full-text available
Although there has been increasing interest in asexuality during the past decade, still little is known on this topic. To define asexuality, three different approaches have been proposed: a definition that is based on sexual behavior, one on sexual desire/sexual attraction, one on self-identification, and one on a combination of these. Depending on...
Article
Introduction. A distress criterion was added to the diagnostic criteria of sexual dysfunctions in Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV; 1994). This decision was neither based on empirical evidence, nor on an open, academic, or public debate about its necessity. As a result, this decision has been disputed ever...
Article
Definition, Prevalence, Incidence, and PhenomenologyCare for Persons with ParaphiliaPsychotherapeutic InterventionsBiomedical InterventionsEffectiveness of InterventionsParaphilia-Related DisordersSummary and Conclusions
Article
Full-text available
The World Professional Association for Transgender Health (WPATH) conducted a consensus process in order to develop recommendations for the refinement of diagnoses for Gender Identity Disorders and Transvestic Fetishism for the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM 5). This article is the report of the work...
Article
Studies on diagnostic subtypes of gender identity disorder (GID) or gender incongruence (GI), comorbidity and treatment outcome show considerable variability in results. Clinic/country specific factors may account for the contradictory results, but these factors have never been studied. This article is the first of a series reporting on a unique co...
Article
Low sexual desire is present in 1/3 of male-to-female transsexuals (post-operative male-to-female transsexual persons on estrogen replacement). Several studies report lower endogenous testosterone (T) levels in this group compared to community dwelling women. However, no relationship between T and sexual desire has been found in male-to-female tran...
Article
Internet-based sex therapy for men with erectile dysfunction has been advocated as an easily accessible and cost-effective treatment. To test whether Internet-based sex therapy is superior to waiting list. Internet-based therapy was administered to heterosexual men with erectile dysfunction or premature ejaculation, without face-to-face contact, in...
Chapter
In 2004 schreven we in de eerste editie van dit boek dat de medisch-biologische belangstelling voor menselijke seksualiteit sterk was toegenomen sinds het begin van de jaren 1980. Een ontwikkeling die nog sterk aan kracht won toen in 1997 de eerste erectiebevorderende pil op de markt kwam. Ook in 2009 blijft de medisch-biologische focus in de seksu...
Chapter
Er zijn vele verschillende psychologische benaderingen van seksualiteit. Ze richten zich alle op het gedrag van individuen en trachten de volgende vragen te beantwoorden: (1) hoe ontwikkelt seksualiteit zich (de ontwikkelingspsychologische dimensie); (2) hoe functioneert seksualiteit (de functieleer en de persoonlijkheidspsychologische dimensie); (...
Chapter
Zoals in de klinische praktijk is vast te stellen, ervaren en gedragen mensen zich seksueel niet op dezelfde manier (zie Box 20.1). Over die variatie wordt bovendien verschillend geoordeeld. Dat oordelen gebeurt vanuit een normatief standpunt dat bepaalt welke seksualiteit afwijkend is. Bij het definiëren van deviante of abnormale seksualiteit zijn...
Chapter
In de westerse wereld ontstond omstreeks 1900 een grote belangstelling voor seksualiteit en de wetenschappelijke bestudering daarvan (zie voor een overzicht: Bullough1)
Book
De seksuologie maakt grote ontwikkelingen door. De wetenschappelijke interdisciplinaire studie van seksualiteit heeft sinds het begin van deze eeuw veel nieuwe theoretische visies, behandelingen en onderzoeksdata opgeleverd. Daarnaast zijn de effecten van de toegenomen medicalisering op de seksuologische hulpverlening groot.Seksuologie is een grond...
Article
Seksualiteit is voor veel, zo niet de meeste mensen een belangrijk thema in hun leven. Seksualiteit kan hen plezier of ellende bezorgen en gaat gepaard met toestemming of afkeuring van henzelf of anderen. Niet alleen voor individuen is seksualiteit belangrijk, ook voor samenlevingen is het een gewichtig thema. Zij voorzien seksualiteit van geboden...
Chapter
De seksuologische hulpverlening kent vele gezichten. De vorm ervan is sterk gebonden aan de vraagstelling en context van de hulpverlening en ligt ingebed in een breed scala van sociaal-culturele, professionele en persoonlijke waarden en normen, intermenselijke verhoudingen en omgangsvormen. Zo is er de medisch-somatische hulpverlening waarbij de re...
Article
Full-text available
An unknown proportion of transsexual women (defined as post-operative male-to-female transsexuals on oestrogen replacement) experience hypoactive sexual desire disorder (HSDD). It has been suggested that the absence of ovarian androgen production together with oestrogen treatment-related increase in sex hormone-binding globulin (SHBG) levels could...
Article
Full-text available
Results are described of a pilot study of the efficacy of sex therapy through the Internet for thirty-nine men with erectile dysfunction or rapid ejaculation. Treatment consisted of sex therapy (Masters & Johnson, 1970), had a duration of three months, and was conducted entirely through e-mail. Forty-six percent of the participants dropped out. Fou...
Article
In 1990 Green and Fleming concluded that sex reassignment surgery (SRS) is an effective treatment for transsexuality because it reduced gender dysphoria drastically. Since 1990, many new outcome studies have been published, raising the question as to whether the conclusion of Green and Fleming still holds. After describing terminological and concep...
Article
Objective: An unknown proportion of transsexual women (defined as post-operative male-to-female transsexuals on oestrogen replacement) experience hypoactive sexual desire disorder (HSDD). It has been suggested that the absence of ovarian androgen production together with oestrogen treatment-related increase in sex hormone-binding globulin (SHBG) le...
Article
In the last decade, transsexual patients have increasingly sought sex reassignment (cross-sex hormones and sex reassignment surgery), whilst avoiding adequate diagnostic procedures. They ask non-specialized physicians to prescribe hormones or to perform sex reassignment surgery. Sometimes hormones are ordered through the Internet or obtained from o...
Article
From the files of the outpatient urology department 44 men with ED had undergone both psychophysiological diagnostic screening (PDS, VSS, VSS+VIB, ICI+VSS+VIB) and color Doppler sonography testing (CDS, including VSS). PDS was carried out by one medical physiologist, CDS by one urologist. The diagnoses reached could be compared. This study revealed...
Article
Psychophysiological diagnostic screening (PDS) was carried out on just over 1000 consecutive patients with erectile dysfunction (ED) during 1995 through 1999. Roughly one-third did not require an intracavernous injection (ICI) because of optimal penile response during visual and tactile penile sexual stimulation. The present article deals with thos...
Article
To compare, in men with erectile dysfunction, the diagnosis obtained with the 'Leiden impotence questionnaire' (LIQ)--which differentiates between psychogenic and organic erectile dysfunction--with the clinical diagnosis based on psychophysiological diagnostic screening (PDS). Exploratory, comparative, and prospective. The LIQ-questionnaire was adm...
Article
This study focuses on the influences of self-perceived interpersonal behavior of addicted inpatients (n = 107) on the stereotypes of their ideal male and female therapist. Based on the interpersonal model of personality patients were asked to describe their ideal male and female therapist. Perceptions of interpersonal behavior of the ideal therapis...
Article
The number of men in the Netherlands who were convicted of sexual offenses rose significantly between 1980 and 1994. Empirical studies of offenders are relatively scarce, although interest in the field is growing. Since the late 1980s, the number of outpatient treatment facilities for these men has increased—especially now that some child molesters...
Article
This article reports on the changes in the classification of sexual dysfunctions since DSM-III, and on the results of the efforts to make these disorders compatible in DSM-IV and ICD-10. A comparison is made between the ways in which sexual dysfunctions are conceptualized in DSM-III, DSM-III-R, DSM-IV, and ICD-10. Special attention is given to the...
Article
Interest in the pharmacotherapeutic treatment of paraphilias is growing. Two classes of drugs have been tested: drugs that interfere with the normal production and action of androgens and psychotropic medications, in particular, anti‐depressants. We present a review of the supposed modes of action, the usual dosages, and the effectiveness of these...
Article
In this review it is hypothesized that in studying men in gay relationships scientific interest shifted from an individualpsychological perspective to a relationship oriented one, that attention shifted from strict sexual aspects towards non-sexual intimate experiences, and that the methodological framework of the studies improved. To investigate p...
Article
In a study of 320 men (20 to 77 years) in gay relationships, data were gathered on verbal, physical, and emotional intimacy and on sexual aspects of relationship functioning. Independent of relationship duration and partners' age, emotional intimacy predicts relationship satisfaction the best. Sexual satisfaction is best predicted by low sexual dis...

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Projects (3)
Project
The overall objective of this project is to improve the quality of sex offender treatment through effective assessment and treatment of dynamic risk factors in adult male sex offenders. Based on the available scientific research and existing gaps in research, my research questions are the following: 1. How well do dynamic risk assessment instruments predict sexual recidivism in sex offenders and to what extent do they add predictive validity to static risk assessment instruments? 2. To what degree is change in dynamic risk factors (as measured with dynamic risk assessment instruments) predictive of sexual recidivism? 3. How do the dynamic risk factors of sex offenders interrelate and which dynamic risk factor forms a key factor for prevention of recidivism and should be considered a main target of treatment?