Presents a novel philosophical account of psychedelic experiences, arguing that they can be induced by means other than psychedelics — such as meditation and yoga.

Never before has so much research been carried out on the therapeutic effect of psychedelic drugs. Researchers at the LIBC Public Day are happy about the effect the drugs can have on depression, anxiety and PTSS, but at the same time they have some doubts. ‘The hype is bound to crash before long.’

We talk with Michiel van Elk, about his research into mapping what effects psychedelics have on the human brain and what this means for the possible clinical application of these drugs. The cognitive psychologist shares his findings with a sober view, bringing critics and fanatics closer together for…

Psychedelic drugs like magic mushrooms and LSD are embraced by some and seen as lethal by others. Cognitive psychologist Michiel van Elk delved into the world of psychedelic drugs and wrote a surprisingly sober book about them. ‘Without first-hand experience my story wouldn’t be complete.’

What exactly do psychedelics do in our brains? To investigate this, NWO has awarded a Vidi grant to Michiel van Elk. The Leiden cognitive psychologist talks about his proposal for serious research into a widespread social phenomenon. 'People describe experiences under the influence of psychedelics that…

Scientists are split over whether the benefits some microdosers experience are a placebo effect or something more. Michiel van Elk has been interviewed by several international news to talk about his research and to discuss the effects of psychedelics.

Fantastic plants, dizzying patterns and pulsating sounds: researchers from Leiden are going to study the effects of a simulated psychedelic trip on the mind and body at Lowlands Festival. Why might this be interesting for therapies?

Come to the Night of Discoveries art and science festival on 16 September. Various researchers from the university are speaking at the festival.

Cognitive psychology is the study of cognitive functions such as attention, memory, consciousness, emotion, language and action control. The goal is to understand the complex relationships between brain, mind and behavior.

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While tens of thousands of visitors dance to deafening music, a team of Leiden psychologists are trying to collect data for their research at Lowlands. How do festivalgoers experience a virtual trip? And what role do factors such as too little sleep and whether they have experience with psychedelics…

All living creatures have to cope with environmental demands and threats that challenge their physical or emotional homeostasis.

In his book The magic of healing, Willem van der Does talks about 14 pioneers in the history of psychiatry. These pioneers all had one thing in common: they started with a radical idea which led to great enthusiasm.

The Cognitive Psychology Unit has two main research lines, which focus on basic cognitive (neuro)science and applied cognitive psychology.

It was the Night of Discoveries on Saturday 16 September: a summer encounter between art and science. Leiden researchers from various disciplines inspired the public with their quest to understand our world.

Although open science reforms have contributed to a more rigorous and robust psychological science, there is still much to improve. In Association for Psychological Science (APS), Eiko Fried points out two norms that open science reforms may have overlooked so far: communalism and universalism. 'Incorporating…

Eleven Leiden researchers have been awarded an 800,000 euro Vidi grant by the Dutch Research Council (NWO). This will enable them to develop their own innovative line of research and start their own research group.

The Institute of Psychology is committed to play a prominent role in teaching and research at the national and international level.

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The number of students suffering from stress and anxiety has decreased slightly compared with 2021. But around half still suffer from mental health problems. This is according to the National Mental Health and Substance Use Monitor.

Piercing through the skull with an ice pick, administering electric shocks without an anaesthetic, or applying leeches to the uterus: these may seem like medieval methods of torture, but they are in fact therapies used in medicine. Willem van der Does writes about all of them in his new book. ‘Physicians…

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