To what extent do your thoughts and experiences affect your health? What is the impact of the placebo effect on medical treatments, for example for pain and itching? In this project, we will collect stories of people who have experiences with the efficacy of placebo effects, for example as a patient…

The major aim is to determine the role of expectancy mechanisms (e.g., verbal suggestion, classical conditioning, and imagery) in placebo and nocebo effects on different psychical sensations (e.g., pain, itch, and fatigue) and how these expectancy mechanisms can be used to optimize health.

The major aim is to unravel the central mechanisms of how peoples’ expectancies affect physical symptoms, immune and endocrine responses, and related health outcomes, through the use of pioneering multidisciplinary methods in experimental studies in healthy and clinical populations.

If a pill containing no active ingredients still helps, this positive expectation is called a placebo effect. A negative expectation is called a nocebo effect. Both can be produced by verbal suggestions and conditioning. According to Andrea Evers’ research group, combining these is the most promising…

It is becoming increasingly clear that the placebo effect has a great influence on medical treatment. An international, interdisciplinary team of researchers led by Professor of Health Psychology Andrea Evers from Leiden University has now written a first set of guidelines on how to apply the placebo…

Health psychologist Aleksandrina Skvortsova has made clever use of the Pavlov effect to link the ‘cuddle’ hormone oxytocin with the placebo effect. This effect can alter the level of oxytocin in the body, making it possible for people to reduce the amount of medicine they need while still feeling good.…

Sometimes fake medicine is enough to cure a patient. But how exactly do placebos work? And did you know that there is also the placebo effect in reverse, the nocebo effect? Psychologist Stefanie Meeuwis explains in this Science Shot.

Even if you have a healthy lifestyle, there's a lot to experience and learn during the Healthy University Week, from 26 to 30 October. Health psychologist Andrea Evers is enthusiastic about the week ahead. She tells us about the programme and gives us a taste of her own talk on what the placebo effect…

Medicines can work even if they have no active ingredient. The first international scientific conference on placebos will take place in Leiden from 2 to 4 April. Placebo researcher Andrea Evers, who is also chairing the conference, answers some pressing questions.

Conference

Conference

Lecture, LIBC Sylvius Lecture

The major aim is to unravel the psychoneurobiological factors, such as expectations, sensitization and attentional processes, that affect the experience of itch and pain in acute and chronic state.

Conference

Lecture

PhD Defence

Psychological processes have a major effect on the course of a disease and the effects of medical treatment. Researchers in the field of Psychoneurobiology examine the interactions between body and mind. They investigate the effects of stress as well as the effect of placebos and nocebos, which can…

PhD Defence

Health psychologist Andrea Evers is one of the 19 new members, selected by the Royal Netherlands Academy of Arts and Sciences (KNAW), who have been inaugurated on 16 September 2019. The Academy has now about 550 members.

Promotors: C.A.J. Knibbe, Anthonius de Boer, Co-promotor: M.M.J. van der Vorst

Arts and Culture, Studium Generale | International Institute for Asian Studies

PhD Defence

Professor of Health Psychology Andrea Evers has been awarded a Proof of Concept Grant by the European Research Council (ERC). This additional grant is awarded to previous recipients of an ERC grant. They can use this to further explore the potential of their work for new innovations and thus bring relevant…

This research profile area focuses on all phases of human development, from infancy and childhood to old age. Within this research profile area, psychologists, psychiatrists, specialists in education and child studies, gerontologists, public health and primary care specialists work closely together.

Health psychologist Kaya Peerdeman has won the article award of the Postgraduate School For Research and Education in Experimental Psychopathology (EPP) for the best academic paper in 2015-2016. Published in European Journal of Pain on 19 April 2017.

Andrea Evers, Professor of Health Psychology at Leiden University, has won the Stevin Prize – alongside the Spinoza Prize, the highest scientific award in the Netherlands. She is the third social scientist from Leiden in a row to win one of these prizes. ‘Leiden attracts freethinkers.’

Positive expectations about a medicine may help it to work more effectively, even if you tell patients about this placebo effect. The reverse, the nocebo effect, works in the same way. Health psychologist Stefanie Meeuwis found evidence for this in various studies. PhD defence 3 June.

Two Leiden researchers of the Institute of Psychology have been given the opportunity to realise their research plans for the coming three years thanks to a Veni grant from the Netherlands organisation for scientific research. Hanneke Hendriks is researcher in the field of Social and organisational…

... which build on self-regulation and stress-regulation theories and considers the modification of cognitions as a mediator of therapeutic change.

PhD Defence

To relieve a patient's pain, it can be effective to induce expectations. This finding is promising for optimising the effectiveness of treatments, conclude Kaya Peerdeman and colleagues in their article in PAIN.

If you imagine in advance that something is not going to hurt, this could mean you experience less pain. This discovery was made by health psychologist Kaya Peerdeman during her PhD research on the placebo effect. PhD defence 7 February.

How can we implement the technique of pharmacological resting-state fMRI to improve the diagnosis of dementia?

The research carried out within the unit Health, Medical and Neuropsychology investigates the psychological factors of health and disease, and the development of innovative treatment.

The Royal Netherlands Academy of Arts and Sciences (KNAW) has granted health psychologist Andrea Evers a visiting professorship funding for Luana Colloca. This funding is linked to the KNAW’s Visiting Professors Programme which enables outstanding foreign researchers to spend time working in the Netherlands.…

The factors that dynamically sculpt the inter-regional correlation of brain patterns are poorly understood. Here, we test the hypothesis that they are shaped by the catecholaminergic neuromodulators norepinephrine and dopamine.

The major aim is to determine the role of stress and stress-related psychophysiological mechanisms (e.g., cognitions, behaviors, and physiological stress responses) of patients with chronic inflammatory conditions and to develop and evaluate stress management interventions to alter the psychophysiological…

Does an Emotional Working Memory Training show a beneficial transfer effect on emotion regulation (reappraisal) capacities in patients with Borderline Personality Disorder?

Leiden University will be recording a brand-new series of podcasts in 2019: Science Shots. Our top scientists will talk about their research in less than 15 minutes. Tip: something to enjoy on the train journey between Leiden and The Hague, our two University cities!

Health is a wonderful gift, both for humans and for society. If we are able to prevent both physical and mental illnesses, we can spare a lot of suffering and fight rising health costs. Social scientists and physicians in Leiden are working closely together to conduct research on the human mental, behavioural…