Exclusion elicits the same response in children as in adolescents and adults. That is what psychologist Mara van der Meulen found when she studied brain activity in primary schoolchildren. ‘What is new for us is that it is the same in childhood as later in life.’ Doctoral defence on 10 December.

Wijnhaven is the pride of our The Hague campus. For the first time, three faculties jointly presented their programmes in this modern building. We asked the school leavers and students why they had come to the Student for a Day experience.

If you expect something is going to itch, the itching really does get worse. Leiden health psychologist Danielle Bartels has proved the effect of negative expectations on itching. What’s remarkable is that this nocebo effect in itching can be reversed. ‘That offers good prospects for clinical practice,’…

Alumnus Anoma van der Veere did Japanese studies and talks in this interview about his studies in Leiden and his work as a researcher at the Leiden Asia Centre and as Japanese correspondent in Tokyo.

Damien van Puyvelde has received funding (over 47.000 euro) from a new Research Council pilot for his study 'Open-source research and the war in Ukraine: intelligence for the people by the people?' We asked the researcher five questions about this project and the opportunities this creates for him.

Plants that grow in patterns of stripes on the edge of deserts, plankton that live on the sea bed or oscillate in the water, and melanomas that spread throughout the body. Mathematician Lotte Sewalt discovered the common elements in these three systems. PhD defence 8 September.

Psychologist Bernou Melisse was shocked at the long waiting lists in the Netherlands for people with binge-eating disorders. The problem was not yet on the map in Saudi Arabia. She therefore decided to study how people suffering from binge eating can be helped better in their own region of the world.…

Jan de Vetten brengt zijn promotieonderzoek ook uit in boekvorm. ‘In de ban van goed en fout’ beschrijft voor het eerst - op basis van archiefonderzoek en interviews - op samenhangende wijze de bestrijding van de CP en CD, en ook de reactie daarop van die partijen. Waarom werden ze zo fel werden bestreden?…

The notion of North Koreans as brainwashed and unable to think critically about their heritage and what it means to be North Korean is pervasive. More so, it is untrue, argues Christopher Green: ‘North Koreans, like any other people are diverse in their opinions and self-understanding.’ PhD defence…

Leiden has the most highly regarded China Studies programme in Europe. But how did this knowledge find its way specifically to Leiden? For his PhD research Koos Kuiper delved into the unique history of the start of this unique programme.

What would it be like if you could work with the best in your field every day? Alumnus in International Studies Niels Drost knows just what that’s like. He currently works as a junior researcher at the Clingendael Institute.

Prisoners who are visited regularly by family or friends are less likely to be reconvicted in the short term than inmates who rarely or never receive visits. Visits should therefore be encouraged and facilitated, according to PhD candidate Maria Berghuis, who will defend her doctoral thesis on 23 June…

China is a one-party regime, yet elections are held for the local congresses. PhD candidate Wang Zhongyuan investigated how the Communist Party uses this democratic instrument to strengthen the authoritarian regime. PhD defence 31 January.

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

Adults who were abused or mistreated as a child and consequently suffer from post-traumatic stress disorder (PTSD) can benefit greatly from cognitive behavioural therapy. This is the conclusion of a study of 149 patients. Researcher and PhD candidate Chris Hoeboer is hopeful about the results and the…

Minou van der Werf advocates applying insights from social psychology to financial behaviour. Even small practical interventions can help people to make sensible financial choices, Van der Werf discovered as a result of her field studies. PhD defence 10 December.

Alexandre Genest will defend his PhD dissertation ‘Performance Requirement Prohibitions in International Investment Law’ as part of a double PhD programme at the Universities of Leiden and Ottawa.

For decades, linguists have racked their brains over the question of precisely how the syntax of various languages is different. PhD candidate Martin Kroon has developed a computer system that brings us closer to finding an answer. His PhD defence is on 10 November.

War and peace studies. A topic that is more relevant than ever because of the war in Ukraine. In September, the MSc Crisis and Security Management (CSM) will start a new track: War and Peace Studies. CSM’s Programme Director, Ernst Dijxhoorn, discusses the new track, how it was created and what students…

How you think about yourself is important for the choices you make. Adolescents are faced with choosing a study programme that will determine their future, while their self-image is still under development. Tough choice? Research by psychologist Laura van der Aar has shown that taking a training course…

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.

Has the Netherlands responded well to the corona crisis? Or are we, as Geert Wilders terms it, the ‘dunce’ of Europe? A group of authors including Leiden professor Arjen Boin have analysed the Dutch approach and come up with valuable lessons for the next pandemic.

What developments preceded modern Standard Dutch? PhD candidate Iris Van de Voorde conducted research on ‘pluricentricity’, or the idea that language norms arise in different places and spread outwards from there. PhD defence on 19 April.

Young people influence one another to take greater risks, although it's not quite that cut and dried. This is what development psychologist Jorien van Hoorn discovered. Peers also have a positive influence on one another, an aspect that has so far been under-researched. PhD defence 12 January.

Imagine: you walk into a museum, see something that catches your eye and before you know it, you have an internship. This is what happened to history student Davey Verhoeven, who went on to work on the exhibition about the unique Japanese folding screen by Kawahara Keiga (approx. 1786 – approx. 1860)…

How can you learn about women’s history if they are under-represented in historical sources? Look at news coverage of crime, says Clare Wilkinson, PhD candidate in gender and history. ‘Historical crime reporting offers a glimpse into forgotten groups.’ The doctoral defence will take place on 23 Apri…

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

It was already known that social anxiety disorder often affects more than one person in the same family. But research by PhD student Janna Marie Bas-Hoogendam has now shown that there are genetic brain characteristics that are associated with social anxiety. The PhD ceremony will take place on 14 Ja…

May the Netherlands deny access to products manufactured under poor working conditions? And can a manufacturer bring a case against a country that increases its minimum wage? PhD candidate Ruben Zandvliet examined the legal and ethical issues involved in international commercial law, investment law…

Counterterrorism specialists often have to contend with difficult ethical dilemmas. There is currently a lack of any adequate infrastructure within intelligence agencies for discussing these dilemmas, Michael Kowalski writes in his dissertation. PhD defence on 12 March.

On Thursday 16 November, Dirk Broekhuijsen will defend his doctoral thesis entitled ‘A multilateral tax treaty: designing an instrument to modernise international tax law’. The defence will take place at 15.00 hrs at the Academy Building of Leiden University. The supervisors are Professor F.A. Engelen…

The annual commemoration of the nation’s war dead on Dam Square and at Waalsdorpervlakte, the Dutch apologies for historical slavery and the Cleveringa Lecture itself: our relationship with history is often ritualistic, Cleveringa Professor Frank van Vree will say in his inaugural lecture on 27 Nove…

Did you know that PhD candidates are also alumni of your alma mater? High time to put a PhD alumna and her research in the spotlight. Besides, this month our UNICEF Chair in Children’s Rights is celebrating its tenth anniversary.

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

In donut-shaped buildings, particle accelerators take super-detailed X-ray images. Yet those images are not good enough to learn how to drive on hydrogen for example. Mathematics PhD student Allard Hendriksen has developed an algorithm that improves the images without having to learn from data from…

The list of substances prohibited by the World Anti-Doping Agency (WADA) is huge. PhD candidate Jules Heuberger looked at many of these, as well as at the methods used to detect them. He concluded that for very few of these substances is there is evidence that they actually do enhance performance. PhD…

Egyptian temple culture was thought to be declining in the Ptolemaic era, after the death of Alexander the Great in 323 BC. Nothing could be further from the truth, says Egyptologist Carina van den Hoven. Temple culture was very much alive and kicking. PhD defence 16 February.

The research of Cathelijn Waaijer shows that scientific careers and especially their early part consist of a succession of short-term posts, or ‘quanta’; hence the title of the dissertation 'Quantized Careers'. PhD defence 24 November, 2016.

How did Fustat develop between 640 and 750 to become the capital of Egypt? At the time Egypt was a province of the Islamic empire - the caliphate - that had been started by the prophet Muhammad. Original sources used by Arabist Jelle Bruning give new insights into the city. PhD defence on 2 April.

What does a political party do in the wake of a disastrous electoral defeat? Martijn van Nijnanten researched this and discovered that parties turn to core values from the past. PhD defence on 12 September.

The effects on local government of the financial crisis that began in 2007 are still largely unknown. As a case study, Jan Porth conducted statistical analyses of the implications for Dutch municipal finances. The crisis became most apparent in the sale of municipal land to private companies and households.…

Recent studies have shown that Dutch secondary school pupils experience a great deal of stress from school work, and between 2001 and 2007 the number of adolescents experiencing school stress even doubled. The study carried out by Simone Vogelaar focuses on stress factors and the effectiveness of the…

The opening of Islamic primary schools has made an important contribution to the emancipation and integration of Muslims in the Netherlands. This is the conclusion of PhD candidate Bahaeddin Budak in his research into 25 years (1988-2013) of Islamic primary schools in the Netherlands. PhD defence on…

Just off the coast of Libya, aid organisations try to rescue boat migrants. The confiscation of one of the rescue ships shows how important but difficult it is for aid organisations to remain neutral, independent and impartial, says Eugenio Cusumano.

Stilzitten doet alumnus Bart Jansen niet graag. Zo geeft hij les in onder meer Nederland, Maleisië en Curaçao, houdt hij zich naast het recht ook graag bezig met kunst en mystiek en vindt hij naar eigen zeggen ‘alles wat fout gaat’ wel interessant aan de rechtsfilosofie. ‘Ik ben gek op veelzijdige mensen;…

In his last week as interim cabinet minister, alumnus and outgoing Dutch Minister for Foreign Trade and Development Cooperation Geoffrey van Leeuwen set time aside to give a guest lecture at his alma mater, Leiden Law School. It was the perfect opportunity for a flash interview.

After working full-time for twenty-four years, Wendy Tonks decided to enrol in the executive master's in Cyber Security. She now proudly reflects on her time in the programme after receiving a ten for her thesis and graduating summa cum laude. ‘I could not believe it when I got my grade.’

The state, and specifically the idea of nationality, is almost all-determining in social life in the Netherlands. It determines how people identify, how we interact with each other, and what (in)equality in society looks like. However, ultimately, the idea that we can divide people into different nationalities…

Knowing whether or not a treatment is working just by wearing your watch? Data scientist Ahnjili ZhuParris has identified a lot of opportunities for the use of machine learning in clinical research to monitor test subjects at home.

What impact does growing up in a musical environment or during the COVID-19 pandemic have on the brain development of teenagers? This was the focus of psychologist Lina van Drunen’s PhD research, which studied hundreds of twins. Her findings reveal that practising music slows brain development, presenting…