Universiteit Leiden

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Kaya Peerdeman

Assistant professor

Dr. K.J. Peerdeman
+31 71 527 3622

Short C.V.

Kaya Peerdeman is postdoctoral researcher assistant professor at the Health, Medical and Neuropsychology unit of Leiden University. She completed the Research Master Psychology and the Master Clinical Psychology at the University of Amsterdam (2011). Her PhD research commenced at the Radboud university medical center and continued at Leiden University under the supervision of Prof. dr. Andrea Evers, Prof. dr. Madelon Peters, and Dr. Antoinette van Laarhoven. She defended her PhD thesis ‘Harnessing placebo effects by targeting expectanciesin February 2018.


The research of Kaya Peerdeman is focused on unravelling how biopsychosocial mechanisms affect treatment outcomes. She works to translate findings to clinical practice in order to optimize treatments. Specifically, she focuses on how expectations shape health, for example through examining placebo and nocebo effects (i.e., beneficial and adverse treatment outcomes not attributable to active treatment components, respectively). She examines how they impact health outcomes like pain and other symptoms (e.g., itch, stress) and what biopsychosocial factors are involved (e.g., anxiety, doctor-patient communication). Key in her work are mechanistic studies bridging fundamental and applied research.

Supervision PhD candidates

  • LingLing Weng, Transferability of the placebo and nocebo effect between itch and pain (CSC grant)
  • Joe Blythe, Unraveling nocebo mechanisms as a cause for the sensitization of somatic symptoms (focus on itch) (NWO Vici grant prof. Andrea Evers)
  • Merve Karacaoglu, Identifying patients at risk for the sensitization of somatic symptoms (NWO Vici grant prof. Andrea Evers)
  • Fabian Wolters Investigating placebo and nocebo mechanisms in fatigue and circadian rhythms (NWO Vici grant and ERC consolidator grant prof. Andrea Evers, and NWO Top Talent grant)


  • Supervisor theses and research internships master tracks Health and Medical Psychology, and Clinical Neuropsychology
  • Coordinator master theses Health and Medical Psychology
  • Supervisor bachelor projects Psychology
  • Tutor workgroups and lecturer Health & Medical Psychology
  • Tutor workgroups Evaluating Interventions in Patients with Chronic Diseases
  • Lecturer on placebo and nocebo effects (Minor Medical Psychology, ErasmusMC & course The Placebo Effect, Netherlands Institute for Health Sciences)
  • Lecturer in course Cross-cultural Psychology of Health and illness
  • Lecturer in course Personality, Clinical and Health Psychology

Media (selection)


  • IASP Early Career Research Grant (2021).
  • LUF research grant (2021).
  • KNAW van der Gaag grant (2020) & LNVH Distinguished Women Scientists Fund (2019).
  • Mind & Life Europe 2018 Francisco J. Varela Research Award.
  • IASP travel grant (2018).


  • Young Talent Award Association for Researchers in Psychology and Health (ARPH) (2019).
  • Best academic paper 2015-2016, Dutch Flemish Postgraduate School for Research and Education in Experimental Psychopathology (EPP). Awarded for Peerdeman et al. (2017) European Journal of Pain.
  • Best article 2015 of the unit Health, Medical and Neuropsychology, Leiden University. Awarded for Peerdeman et al. (2015) PLoS ONE.

Memberships societies, research schools, and institutes

  • Society for Interdisciplinary Placebo Studies (SIPS) - organizing committee 1st and 2nd official SIPS conference on placebo studies, 2017 and 2019
  • Dutch Flemish Postgraduate School for Research and Education in Experimental Psychopathology (EPP)
  • International Association for the Study of Pain (IASP)
  • Association for Researchers in Psychology and Health (ARPH)
  • Leiden Institute for Brain and Cognition (LIBC)

Relevant links

Assistant professor

  • Faculteit der Sociale Wetenschappen
  • Instituut Psychologie
  • Gezondheids, Medische- Neuropsychologie

Work address

Pieter de la Court
Wassenaarseweg 52
2333 AK Leiden
Room number 2A05



No relevant ancillary activities

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