About us

The Center for Interdisciplinary Placebo Studies Leiden (IPS) aims to advance the understanding of placebo and nocebo effects, their underlying mechanisms, and their potential applications in clinical practice. IPS consists of a group of interdisciplinary researchers working at Leiden University with the goal to study placebo and nocebo effects in various contexts, develop training and education in the area of placebo effects, and finding ways to successfully apply this knowledge to clinical practice. 

Mission and Goal

Our Mission is to advance the understanding of placebo and nocebo effects, their underlying mechanisms, and their potential applications in clinical practice. We seek to conduct rigorous scientific research that illuminates the ways in which these effects can be harnessed to improve patient outcomes and reduce negative side effects of medical interventions. Our team is dedicated to creating innovative solutions for healthcare providers, including evidence-based training programs and tools, that can enhance placebo effects and mitigate nocebo effects.

We recognize the importance of patient input and collaboration, and we work closely with patient organizations to ensure that our research is patient-centered. We also involve patients and health care providers as co-investigators in our studies to gain a more comprehensive understanding of the factors that influence placebo and nocebo effects. 

As part of our national and international collaboration, we participate in international consortia and networks to share our findings, collaborate on research studies, and learn from the experiences of other researchers in the field. 

Finally, we believe that public outreach is essential for promoting understanding of placebo and nocebo effects. That's why we organize public outreach events, such as lectures and workshops, to share our findings with the wider community and engage in a dialogue about the power of placebo and nocebo effects. 

IPS Research Team 

We are a multidisciplinary team of more than 20 researchers at different levels, including professors, postdocs, PhD candidates and master level students. Our team brings together diverse expertise from psychology, communication, medicine, and neuroscience. 

 

IPS Research and Principal Investigators

Dr. Sylvia van Beugen

Dr. Sylvia van Beugen

Assistant Professor at the department of Health, Medical and Neuropsychology at Leiden University

  Bio
Prof. dr. Andrea Evers

Prof. dr. Andrea Evers

Professor of Health Psychology and chair of the Institute of Psychology at Leiden University

  Bio
Dr. Antoinette van Laarhoven

Dr. Antoinette van Laarhoven

Associate professor in Health and Medical Psychology at Leiden University

  Bio
Dr. Stefanie Meeuwis

Dr. Stefanie Meeuwis

Postdoctoral researcher at the Health, Medical, and Neuropsychology Unit at Leiden University

  Bio
Dr. Henriet van Middendorp

Dr. Henriet van Middendorp

Associate Professor at the Health, Medical and Neuropsychology unit of Leiden University
  Bio
Dr. Kaya Peerdeman

Dr. Kaya Peerdeman

Assistant professor in Health and Medical Psychology at Leiden University

  Bio
Dr. Aleksandrina Skvortsova

Dr. Aleksandrina Skvortsova

Assistant professor at the unit of Health, Medical and Neuropsychology of Leiden University

  Bio
Dr. Judy Veldhuijzen

Dr. Judy Veldhuijzen

Associate Professor at the department of Health, Medical and Neuropsychology at Leiden University

  Bio
Dr. Liesbeth van Vliet

Dr. Liesbeth van Vliet

Assistant Professor at the Department of Health, Medical and Neuropsychology at Leiden University

  Bio

IPS PhD Candidates

Hans van Lennep MSc

Hans van Lennep MSc

PhD Candidate

  Bio
Simone Meijer MSc

Simone Meijer MSc

PhD Candidate

  Bio
Gita Nadinda MSc

Gita Nadinda MSc

PhD Candidate

  Bio
Anne Versluis MSc

Anne Versluis MSc

PhD Candidate

  Bio
Fabian Wolters MSc

Fabian Wolters MSc

PhD Candidate

  Bio
Jennifer Becker MSc

Jennifer Becker MSc

PhD Candidate

Pien van der Velde MSc

Pien van der Velde MSc

PhD Candidate

  Bio
Victor Leong MSc

Victor Leong MSc

PhD Candidate

  Bio
Theres Patzelt MSc

Theres Patzelt MSc

PhD Candidate

  Bio
Renske Krijt MSc

Renske Krijt MSc

PhD Candidate

Research Communication Support

  Bio
Lara Gröschel MSc

Lara Gröschel MSc

PhD Candidate

  Bio

IPS Visiting Researchers

Dr. Hojjat Daniali

Dr. Hojjat Daniali

Department of Psychology, Norwegian University of Science and Technology (NTNU)

Dr. Arianna Bagnis

Dr. Arianna Bagnis

Department of Medical and Surgical Sciences (DIMEC), University of Bologna

Mirjam Oomens

Mirjam Oomens

Health, Medical, and Neuropsychology Unit at Leiden University

IPS PhD students (alumni)

Dr. Danielle Bartels

Dr. Danielle Bartels

Lecturer in applied psychology at Fontys hogescholen

Dr. Stefanie Meeuwis

Dr. Stefanie Meeuwis

Postdoctoral researcher at the Health, Medical, and Neuropsychology Unit at Leiden University

  Bio
Dr. Kaya Peerdeman

Dr. Kaya Peerdeman

Assistant professor in Health and Medical Psychology at Leiden University

  Bio
Dr. Aleksandrina Skvortsova

Dr. Aleksandrina Skvortsova

Assistant professor at the unit of Health, Medical and Neuropsychology of Leiden University

  Bio
Dr. Rosanne Smits

Dr. Rosanne Smits

Postdoctoral researcher at RadboudUMC

Dr. Lemmy Schakel

Dr. Lemmy Schakel

GZ psychologist at Yulius

Dr. Judith Tekampe

Dr. Judith Tekampe

Source and Contact Investigator GGD at Yource Netherlands

Dr. Mia Thomaidou

Dr. Mia Thomaidou

Research fellow, School of Criminal Justice, Rutgers University

Dr. Lingling Weng

Dr. Lingling Weng

Dr. Joe Blythe

Dr. Joe Blythe

Dr. Merve Karacaoglu

Dr. Merve Karacaoglu

Dr. Janine Westendorp

Dr. Janine Westendorp

IPS Research and Communication Support

Renske Krijt MSc

Renske Krijt MSc

PhD Candidate

Research Communication Support

  Bio
Lisa Achteresch

Lisa Achteresch

Research Assistent

Elena Prinea

Elena Prinea

Research Assistent

IPS Management

Dr. Henriet van Middendorp

Dr. Henriet van Middendorp

Associate Professor at the Health, Medical and Neuropsychology unit of Leiden University
  Bio
Dr. Francette Broekman

Dr. Francette Broekman

Research Communication and Management

  Bio
Sonja van Rees Vellinga MSc

Sonja van Rees Vellinga MSc

Research Communication and Management

  Bio