World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
56
Citations
12670
World Ranking
4201
National Ranking
201

Overview

Mark van der Gaag is affiliated with Vrije Universiteit Amsterdam in the Netherlands, focusing on research primarily at the intersection of psychology and medicine. Their work spans multiple subfields including psychiatry and mental health, clinical psychology, experimental and cognitive psychology, social psychology, and philosophy.

The scientist's research topics cover a range of mental health-related areas, notably:

  • Schizophrenia research and treatment
  • Mental health research topics
  • Mental health and psychiatry
  • Mental health treatment and access
  • Child and adolescent psychosocial and emotional development
  • Tryptophan and brain disorders
  • Psychosomatic disorders and their treatments

Mark van der Gaag has published articles in various prominent journals, with frequent contributions to:

  • Schizophrenia Bulletin
  • Frontiers in Psychiatry
  • Trials
  • Psychological Medicine
  • Schizophrenia Research

Significant recent papers illustrating the scope and focus of their research include:

  • "Preventive interventions for individuals at ultra high risk for psychosis: An updated and extended meta-analysis", 2021, Clinical Psychology Review
  • "Development of Proteomic Prediction Models for Transition to Psychotic Disorder in the Clinical High-Risk State and Psychotic Experiences in Adolescence", 2020, JAMA Psychiatry
  • "Cost-Effectiveness of Virtual Reality Cognitive Behavioral Therapy for Psychosis: Health-Economic Evaluation Within a Randomized Controlled Trial", 2020, Journal of Medical Internet Research
  • "Dysregulated Lipid Metabolism Precedes Onset of Psychosis", 2020, Biological Psychiatry
  • "What Constitutes Sufficient Evidence for Case Formulation-Driven CBT for Psychosis? Cumulative Meta-analysis of the Effect on Hallucinations and Delusions", 2020, Schizophrenia Bulletin

The scientist collaborates frequently with other researchers in the field. Key co-authors include:

  • Lieuwe de Haan
  • Lucia Valmaggia
  • Matthew J. Kempton
  • Barnaby Nelson
  • Stephan Ruhrmann

Best Publications

  • The five-factor model of the Positive and Negative Syndrome Scale - II: A ten-fold cross-validation of a revised model

    Mark van der Gaag;Tonko Hoffman;Mila Remijsen;Ron Hijman

  • The Validity of the 16-Item Version of the Prodromal Questionnaire (PQ-16) to Screen for Ultra High Risk of Developing Psychosis in the General Help-Seeking Population

    Helga K. Ising;Wim Veling;Rachel L. Loewy;Marleen W. Rietveld

  • Preventing a first episode of psychosis: Meta-analysis of randomized controlled prevention trials of 12 month and longer-term follow-ups

    Mark van der Gaag;Filip Smit;Andreas Bechdolf;Paul French

  • Psychological Interventions for Psychosis: A Meta-Analysis of Comparative Outcome Studies

    David Trevor Turner;Mark van der Gaag;Eirini Karyotaki;Pim Cuijpers

  • CRITICAL ANALYSIS OF THE CURRENT TREATMENT GUIDELINES FOR COMPLEX PTSD IN ADULTS.

    Ad De Jongh;Ad De Jongh;Patricia A. Resick;Lori A. Zoellner;Agnes van Minnen

  • Prolonged Exposure vs Eye Movement Desensitization and Reprocessing vs Waiting List for Posttraumatic Stress Disorder in Patients With a Psychotic Disorder: A Randomized Clinical Trial

    David P. G. van den Berg;Paul A. J. M. de Bont;Berber M. van der Vleugel;Carlijn de Roos

  • The effects of individually tailored formulation-based cognitive behavioural therapy in auditory hallucinations and delusions: a meta-analysis.

    Mark van der Gaag;Lucia R. Valmaggia;Lucia R. Valmaggia;Filip Smit

  • Identifying Gene-Environment Interactions in Schizophrenia: Contemporary Challenges for Integrated, Large-scale Investigations

    Jim van Os;Jim van Os;Bart P. Rutten;Inez Myin-Germeys;Philippe Delespaul

  • Psychological Therapies for Auditory Hallucinations (Voices): Current Status and Key Directions for Future Research

    Neil Thomas;Mark Hayward;Mark Hayward;Emmanuelle Peters;Emmanuelle Peters;Mark van der Gaag

  • Cognitive Behavioral Therapy for Subjects at Ultrahigh Risk for Developing Psychosis: A Randomized Controlled Clinical Trial

    Mark van der Gaag;Dorien H. Nieman;Judith Rietdijk;Sara Dragt

  • The Treatment of Hallucinations in Schizophrenia Spectrum Disorders

    Iris E. C. Sommer;Christina W. Slotema;Zafiris J. Daskalakis;Eske M. Derks

  • IS IT TIME TO DEVELOP A NEW COGNITIVE THERAPY FOR PSYCHOSIS—COGNITIVE REMEDIATION THERAPY (CRT)?

    Til Wykes;Mark van der Gaag

  • A Meta-Analysis of Social Skills Training and Related Interventions for Psychosis.

    David T Turner;Edel McGlanaghy;Pim Cuijpers;Mark van der Gaag

  • Two subdomains of negative symptoms in psychotic disorders: Established and confirmed in two large cohorts

    Edith Liemburg;Stynke Castelein;Roy Stewart;Mark van der Gaag

  • Virtual-reality-based cognitive behavioural therapy versus waiting list control for paranoid ideation and social avoidance in patients with psychotic disorders: a single-blind randomised controlled trial

    Roos M C A Pot-Kolder;Chris N W Geraets;Wim Veling;Marije van Beilen

  • Trauma and recent life events in individuals at ultra high risk for psychosis: review and meta-analysis.

    Tamar Kraan;Eva Velthorst;Eva Velthorst;Filip Smit;Filip Smit;Lieuwe de Haan

  • Treating trauma in psychosis with EMDR: a pilot study.

    David P.G. van den Berg;Mark van der Gaag

  • The five-factor model of the Positive and Negative Syndrome Scale I: confirmatory factor analysis fails to confirm 25 published five-factor solutions.

    Mark van der Gaag;Anke Cuijpers;Tonko Hoffman;Mila Remijsen

  • Cognitive-behavioural therapy for refractory psychotic symptoms of schizophrenia resistant to atypical antipsychotic medication. Randomised controlled trial.

    Lucia R Valmaggia;Mark van der Gaag;Nicholas Tarrier;Marieke Pijnenborg

  • A Controlled Trial of Cognitive Remediation in Schizophrenia

    Mark van der Gaag;Robert S Kern;Robert J van den Bosch;Robert P Liberman

Frequent Co-Authors

Lucia Valmaggia
Lucia Valmaggia King's College London
Philip McGuire
Philip McGuire University of Oxford
Barnaby Nelson
Barnaby Nelson University of Melbourne
Neus Barrantes-Vidal
Neus Barrantes-Vidal Autonomous University of Barcelona
André Aleman
André Aleman University Medical Center Groningen
Marie-Odile Krebs
Marie-Odile Krebs Université Paris Cité
Merete Nordentoft
Merete Nordentoft University of Copenhagen
Pim Cuijpers
Pim Cuijpers Vrije Universiteit Amsterdam
Ulrich Reininghaus
Ulrich Reininghaus Heidelberg University
Gerdina H. M. Pijnenborg
Gerdina H. M. Pijnenborg University of Groningen

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Considering a degree in Psychology opens doors to a range of online programs and rewarding careers in counseling and mental health. Aspiring professionals often aim to become Licensed Professional Counselors (LPC), a career pathway with specific educational and licensure requirements in each state.

For example, South Dakota lpc licensure requirements include earning a graduate degree, completing supervised clinical hours, and passing relevant exams. States have their own unique guidelines—before applying, be sure to check your local criteria. If you're interested in the South, familiarize yourself with Tennessee licensed professional counselor requirements, which outline the educational standards and practical training for LPCs in Tennessee.

If Texas is your destination, it’s important to review the lpc licensure requirements in Texas, which detail the necessary steps for obtaining your license there. Similarly, students looking at opportunities in Utah should learn how to get an lpc license in Utah before starting their journey.

By exploring online psychology degrees and understanding local licensure requirements, you can make informed decisions and set a strong foundation for your counseling career.

Best Scientists Citing Mark van der Gaag

Trending Scientists