This project combines an extensive new open database on linguistic distributions, spatial modelling and areal linguistics in order to disentangle the roles of social and environmental factors on the emergence of linguistic diversity patterns of South America.

...What does seem clear, though, is that there is a great deal of room for improvement in the process of out-of-home placement. The FSW's social and behavioural scientists give their views.

How do processes of coalition-formation influence patterns of decision-making in the European Union?

This is a Special Issue of the peer-reviewed journal 'Social Sciences and Missions', which provides a forum for exploration of the social and political influence of Christian missions worldwide.

Andrei Poama, Assistant Professor at Leiden University, published a piece in the journal of Political Philosophy about social injustice, disadvantaged offenders and the state's authority to punish.

How can theatricality act as a mediating process between public space and public as ‘audience’? Does the presence of an observer change the nature of the observed and if so, how?

On 20 September 2019, the opening drinks for the Open Science Community Leiden will be held at the Faculty of Social and Behavioural Sciences. Open science is the approach to science aimed at making scientific research accessible, reproducible, and freely available to people within and outside the academic…

De rechtbank van Rotterdam geeft zorghulp Carol Kollmann gelijk in haar rechtszaak tegen het UWV. De zorghulpverlener vond dat ze recht heeft op een WW-uitkering en het meetellen van haar arbeidsverleden voor de WW, nadat ze erachter kwam dat ze daar door de zogeheten Regeling dienstverlening aan huis…

Toward optimal measurement and greater understanding of youth cognition in school refusal and cognitive behavioural therapy outcome

Political scientists Tom van der Meer, Lisa Janssen (University of Amsterdam) and Tom Louwerse (Leiden University) analyse polls presented by the main polling agencies in the Netherlands, as well as micro-level panel data. They reach three main conclusions. First, vote intention polls in the Netherlands…

With the start of the new academic year, the Social Resilience & Security programme proudly presents their yearbook. In the yearbook, you read about the programme’s interdisciplinary research building bridges between institutes, its educational activities such as the new Minor ‘Violence Studies’ and…

This dissertation explores how domestic political power struggles in Greece and Turkey during the Cold War engaged with the ongoing conflict in Cyprus and aims to demonstrate how socialist parties in Greece and Turkey struggled with the concept of the “nation” in battling for power and political positioning…

The idea that socially anxious people avoid eye contact because they are not interested in other people needs to be changed. They take their information from other physical sources, such as people's hands. This is the finding of Leiden psychologist Mariska Kret whose research has been published in…

Professor emeritus of Animal Behaviour Carel ten Cate is awarded honorary membership by the Dutch Society for Behavioural Biology (NVG). He received the honour for his activities for the Society and the discipline of behavioural biology.

Sonic Modernities situates Southeast Asian popular music in specific socio-historical settings, hoping that a focus on popular culture and history may shed light on how some people in a particular part of the world have been witnessing the emergence of all things modern.

On Wednesday 11 June 2025 Steffie van Gompel successfully defended a doctoral thesis and graduated.

In our digital society, the internet seems to offer endless possibilities for expressing yourself, gathering information, and making contact with others. The anonymity of the internet seems to give us the freedom to come and go as we please. But what about our online privacy? Should it be dealt with…

A research into for whom, when and why the Cool Little Kids intervention works.

On 11 January 2019, Maastricht University and the University of Groningen hosted a workshop on the regulation of social media influencers.

Developmental considerations in the design and delivery of cognitive-behavioural therapy for adolescent school refusal

Climate change is a hot topic and constantly in the news. Thousands of Dutch high school students protested at the Malieveld in The Hague. News website Nu.nl has barred climate change deniers from their comments section to prevent ‘fake news’. How does climate change impact the research community, and…

On Wednesday 3 July 2024 Renata Schiavo successfully defended a doctoral thesis and graduated.

After a long period of formation, the Rutte III cabinet presented itself on 26 October 2017. The coalition agreement on which ministers will build is called ‘Vertrouwen in de toekomst’ ('Confidence in the future'). But what impact will this new cabinet have on our future? We asked our researchers in…

Those who know their dystopian classics will inevitably associate the concept of surveillance society with the all-knowing oppressive force characterized as Big Brother in George Orwell’s novel 1984. However, surveillance permeats our society in many more subtle aspects than our worst fears about spy…

A Preventive Intervention Team that investigates children with behavioural problems and trains their social skills in order to prevent school dropout and other, more serious problems. This is a strategy that Leiden University and the municipality of Amsterdam have been using for several years already,…

Cynthia van Vonno, political scientist at Leiden University, explains why individual MPs vote according to the party group line.

The Dutch Research Council (NWO) has awarded a grant of €2,858,000 from the Dutch National Research Agenda (NWA) for tackling sexually transgressive behaviour and sexual violence (SGOG). Mischa Dekker, assistant professor and member of the Violence and Violence Prevention research group, is a co-applicant…

It is sufficiently plausible that the professor from the Faculty of Archaeology exhibited the ‘inappropriate and unacceptable behaviour’ detailed in the advice of the investigating committee. That is is unless the professor provides counter-evidence. This is the conclusion of the Subdistrict Court…

The need for knowledge among practitioners and the lack of an academic knowledge base for specifically collective arrangements of social work in the Netherlands were the reason for Anouk de Koning, Femke Kaulingfreks and Maartje van der Woude to start working on a Dutch Research Agenda (NWA) application…

The major aim is to develop, evaluate, and implement disease-generic cognitive-behavioral interventions through the internet in order to optimize tailored health care for patients with chronic somatic conditions.

Enhancing social inclusion through developing methods and analytical tools for understanding and reasoning about such phenomena based on sensor data.

How were (post) colonial migrants included in post-war welfare systems?

Childhood sexual abuse is a common problem, with approximately one in five girls and one in 13 boys worldwide experiencing some form of sexual abuse before the age of 18. Despite its high prevalence, many individuals remain silent about these experiences, often delaying disclosure for years, with one…

In memory of Andrea Evers, Professor of Health Psychology, the Prof. Andrea Evers Fund for Health, Behaviour and Society has been established. With this fund, we aim to honour her deepest wish: to continue research that contributes to health, well-being, and a resilient society.

Stress, burnout, depression – these conditions pervade all levels of our society. Children and students suffer from constant pressure to achieve; at the international level, tensions lead to short-sighted actions; and, at the personal level, stress affects our health and social environment. How do our…

In a recent mega-analysis, researchers from Leiden University aimed to clarify the contradictory findings of research into social anxiety disorder. They found that to obtain reliable research results having the largest possible sample size is important. Publication in NeuroImage:Clinical.

An acute shortage of social care staff means that family members often quit their jobs to care for relatives with severe disabilities. This seems too good to be true – and there is a catch. Barend Barentsen, Professor of Labour law, discusses this on Dutch consumer programme ‘Radar’.

Does a drug enter into the human brain once administered in the body?

The electrochemical reduction of a group of organic compounds on platinum is strongly dependent on the arrangement of the atoms in the platinum surface. Christoph Bondue, postdoc in Marc Koper's group, published this in Nature Catalysis on 4 March. The reduction of such compounds is an important process…