Anthropologist Rodrigo Ochigame studies how AI is changing the practice of scientific research. From astrophysics to mathematics to climate science, they find that the adoption of new AI models is raising questions about what counts as reliable scientific evidence.

Workshops, tours, talks, music, an AI photobooth, interviews, a special poem and the launch of the LUF Children’s Fund. Alumni celebrated their alma mater’s 450th birthday in style on Saturday at the massively oversubscribed Dies Natalis Festival.

The radio telescope LOFAR, with a major contribution from Leiden Observatory, has produced the most detailed radio map of the Universe ever made. Never before have so many cosmic radio sources been captured in a single survey: 13.7 million.

Nanoplastics can accumulate in developing hearts, according to a study by biologist Meiru Wang from Leiden University. Her research on chicken embryos sheds new light on how these tiny plastic particles pose a threat to our health.

Eiko Fried has been appointed professor of Mental Health & Data Science. This combined chair neatly fits the view that understanding complex mental health issues require the integration of statistical methods. ‘The idea that mental health problems are monocausal entities with simple etiologies is no…

Rector Magnificus Carel Stolker will retire on 8 February. If there’s one theme running through his career, it’s the links between the University and society. In this series of pre-retirement discussions, Stolker will talk one last time to people from within and without the University. In this edition…

For their research many neuropsychologists use the brain scanners at the LUMC. At the start of the pandemic, the rules for visiting the hospital became stricter and a large amount of psychology research looked as though it would fall through. Thanks to good protocols the researchers can now pick up…

Toelating en selectie

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…

Cognitive decline and anxiety in Parkinson’s disease are often only recognised at a late stage, in spite of their great impact. Research by Marit Ruitenberg focuses on new tests and methods to show up these symptoms earlier and make them more specific.

The risk of a brain tumour recurring can be predicted more accurately by counting the number of immune cells in the tumour under a microscope. These are the findings from research conducted by LUMC, Erasmus MC and Heidelberg University.

What are the often invisible cognitive consequences of multiple sclerosis? Maureen van Dam mapped these out during her doctoral research. 'People usually notice the physical symptoms, but the cognitive symptoms deserve at least as much attention.'

How can parents avoid passing on stress and mental health problems to their children? Professor of Stress-Related Psychopathology Bernet Elzinga develops simple interventions to help both parents and young people. For her research, she has been awarded the Spinoza Prize, the highest academic honour…

The League of European Research Universities (LERU) was launched in Leiden 20 years ago. This anniversary will be celebrated with a major conference (19 – 21 May) on an urgent theme: How does science contribute to sustainable and resilient societies? We put this question to Kurt Deketelaere, Secretary-General…

You might not have gone to medical school but you can still help someone with suicidal thoughts. This is what three staff members who took training from 113 Suicide Prevention Foundation are keen to emphasise. ‘I’ve got a better idea of what warning signs to look for and how to refer students to the…

Working towards resilient communities, transparency in science and connecting with the employment market – these are the three key themes being addressed by the departments of Social and Behavioural Sciences at Dutch universities. On 11 February, they presented a joint sector plan to Marcelis Boereboom,…

At science festival 'Over de kop', surprising brain facts alternate with confronting stories from the operating room. Researchers explain why our brains love beans and why you should never ride a racing bike without a helmet.

Western civil servants openly struggle with their government’s policies on the war in Gaza. During a meeting at Campus The Hague, three former civil servants told their stories.

Spatial technology such as virtual reality can help patients who have difficulty with spatial cognition, for instance if they keep on losing their way. In her inaugural lecture, neuropsychologist Ineke van der Ham will talk about the importance of avatars, the patient experience and room for innovat…

Mirjam Oomens was working on her PhD research on language in the consulting room when she was diagnosed with metastatic cancer. Four years later, she has made it her mission to encourage doctors and other healthcare professionals to make fewer statements about life expectancy. 'Such a conviction can…

‘Let us not forget the power of genuine engagement,’ dean Sarah de Rijcke stressed at the New Year's Reception on 7 January 2025, which was also attended by Rector Magnificus Hester Bijl and addressed the Faculty of Social Sciences.

Our institute is in full swing: the annual staffing review, Recognition & Rewards, Open Science and the introduction of GROW. Besides these positive developments, Hanneke Hulst also sees concerns, for example about the new outline agreement. 'I’m hopeful that together we will find smart ways to deal…

Even though it is generally known that Autism and ADHD are more common in men, and depression or anxiety disorders are more common among women, it is still not well understood if, how and when sex differences impact neurodiversity and mental health. To better understand this complex issue, 25 international…

Medical psychologist Willeke Kitselaar developed a model that helps identify patients with persistent somatic symptoms earlier, based on an extensive large medical database. ‘I advise GPs to ask patients to fill in a questionnaire about both physical and mental symptoms at an earlier stage.’ PhD defence…

In dermatology, there should be a high level of multidisciplinary collaboration among institutes and specialists, Professor of Translational Dermatology, Robert Rissmann, will say in his inaugural lecture on 8 July. He is building an infrastructure that will put pre-clinical and clinical skin research…

The Advanced Nano-electrochemistry Institute Of the Netherlands (ANION) consortium will receive 23.6m euros in Gravitation funding for research on important electrochemical processes for energy transition. An additional four consortia with members from Leiden have also been awarded funding.

Leiden University has recently received various petitions from students and staff concerning our ties with Israeli universities. We have also held extensive discussions with the University Council in response to questions raised on the subject. We think it important that our partners and research projects…

Are you a Leiden researcher looking for opportunities for interdisciplinary research and collaboration in the fields of local communities, health and disease prevention? If so, Health Campus The Hague is the right place for you. Take a look at these four examples of current research.

In the ‘Educatips’ column, psychology lecturers share their valuable insights about lecturing. This month: Franz Wurm is developing entrepreneurship workshops together with PLNT for master’s students of Clinical Psychology. ‘We want to teach students to develop from passive consumers to become active…

All Leiden University staff will receive an invitation on 17 October to fill in the Personnel Monitor. Why is it important that everyone completes it? And what has happened with the results of the last Personnel Monitor? Vice Chairman of the Executive Board Martijn Ridderbos explains.

Seven interdisciplinary projects involving Leiden University academics have been awarded up to €27,000 in seed funding. They will work with Una Europa alliance partners to advance topics including academic freedom, AI in the humanities, sustainable mining and maternal health care.

Seven Leiden professors have been elected as members of the Royal Netherlands Academy of Arts and Sciences (KNAW). In total 23 new members will be inaugurated on Monday 13 September.

Eye contact between parents and children improves their mood and increases feelings of connectedness on both sides; but not in the case of depressed adolescents, Mirjam Wever discovered. Where the parent-child bond has been disrupted, it can be strengthened not only with therapy for the child but also…

In this Educatips collumns, Child and Education Studies lecturers share their key insights about teaching. This month: Rachel Plak and Karlijn Pieterse wanted to better prepare students in the course Autism and Diagnostics for clinical practice. That's why they introduced a new type of assignment.

Healthy lifestyle campaigns are often unsuccessful. It is hard to get people to eat healthily or do more exercise. Behavioural science expertise should be drawn on at a much earlier stage in policy development, say twelve behavioural scientists in a position paper. They will present the paper to Maarten…

In 2025, our colleagues from the Institute of Psychology once again made a strong presence in the media. From (inter)national newspapers to podcasts, discover where they shared their expertise in the media this year.

Psychologist Ellen de Bruijn studies the effects of hormonal fluctuations on behaviour and on the brain over a woman's life course. With an ERC Consolidator grant, she and 3 PhDs and a postdoc will further her EEG research on the different stages at which girls and women experience strong hormonal f…

What exactly does it mean when your doctor says you have a ‘good chance’ of survival? Leiden researchers discovered that there is a big difference in how people interpret such probability phrases. And that can be a problem, warns lead researcher Sanne Willems in her blog post.

Opting more often for mocktails or soft drinks rather than beer or wine, talking to others about their drinking and pointing out the ban on drugs. Leiden University’s new covenant on alcohol and drugs for study associations encourages providing more alcohol-free alternatives.

Students from the ‘Public confidence in the criminal justice system’ Bachelor’s Honours Class completed this course with their presentations at the final session on Tuesday 25 May. What is unique about this honours class is the collaboration with The Hague University of Applied Sciences and the Court…

Also in 2024, our colleagues from the Institute of Psychology were visible in the media in various ways. Check out their appearances in Dutch media, from NRC to the Podcast psychologist.

From science to startup: How do you approach it? Why should you take your research to the market in the first place? And what obstacles will you face? ‘It takes time to find a company that matches your motives.’

Psychologist Myrthe Jansen conducted research into the performance monitoring that constantly takes place in our heads. People with obsessive-compulsive symptoms are more afraid to make a mistake that harms others, than when they make a mistake that only harms themselves. Jansen received her PhD on…

Can cognitive decline in people with Parkinson’s disease be measured using digital tests at home? According to an interdisciplinary team of researchers, the answer is yes. They investigated this with a Kiem grant from Leiden University.

The experiential expertise of people with a disability needs to be integrated in diversity & inclusion policy. This message was the common thread at the annual Diversity & Inclusion symposium. Students and staff members engaged in conversation about how the university can become more accessible.

A million people in the Netherlands attempt to quit smoking each year, often without lasting success. Health psychologist Kristell Penfornis carried out doctoral research into the role of self-image in smoking cessation. “If smoking is normal in your social circle, it more easily becomes part of your…

They are responsible for a wide range of bachelor’s and master’s degree programmes but have more than enough in common to discuss: the programme directors and chairs. They met for the second time on 25 April to share knowledge and experiences and receive an update from Hester Bijl on strategic developments…

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