What are the circadian disturbances underlying depression vulnerability? How are they related to mood, cognition and sleep ?

Embedding ethical legal and societal aspects for responsible military AI.

Examining mediation and moderation.

The precise psychobiological mechanisms leading to chronic physiological stress responses have not been sufficiently explained, although stress is a major risk factor for disease and early death. A problem for conventional stress theory is that most of these responses seem to occur in situations without…

Promotores: B. Erez, P. Stevenhagen, Co-Promotor: B. de Smit

The data-driven economy allows for the collection and processing of large amounts of data. Such data can be used to optimize profits by (dynamically) differentiating prices for different consumers.

Following the format of Privacy Law Scholars Conference (PLSC) in the United States, PLSC Europe is a conference for stimulating work in progress. Discussants, rather than authors, kick off and lead a conversation on a paper. There are no panels or presentations by the authors. Attendees read papers…

The Faculty of Science is located at the Leiden Bio Science Park. It was founded more than two centuries ago and currently, more than 8000 people are working and studying at the eight institutes.

Meet Bart, Reza, Weiyan, James, Daphne and Yasmin.

What was the relationship between women and modern media in different parts of Asia in the 20th century? Under what historical and social conditions did women achieve prominence in popular music in Asia?

After its highly successful first two editions in 2024 and 2025, we are delighted to announce the third Leiden eLaw Summer School from 22 to 26 June 2026, both in person in Leiden and online. This year’s theme is ‘The EU Digital Omnibus – Streamlining Rules, Sacrificing Standards?’

Can process-oriented dynamic testing be applied to everyday educational practice?

This study focuses on increasing our understanding of the different pathways converts take during conversion to Islam.

The LUCL Labs consist of four spaces equipped to conduct high-quality experimental linguistic research.

Source: Biochem Pharmacol, Volume 95, Issue 4, pp. 290-300 (2015)

Ethnography and Photography in a Moroccan Berber Village

What role do parent-child interactions play in the development, maintenance and treatment of depression in young people?

With Leiden University Press, LUCIS publishes a peer-reviewed book series “Debates on Islam and Society” aimed at a broad audience. A number of books in this series are available in open access.

What is the effect of a dynamic training in children’s inductive reasoning skills and how is it related to children’s school performances and language development.

What is the optimal way to utilise intermediate assessment in improving study behaviour and study success?

How did digital intermediality symbolise and facilitate the transfer of content from popular culture into policy statements and vice versa in the period between 1945 and the new millenium?

Research goal: To support the design of technologies (counter-measures and communication measures) for the prevention, interdiction and mitigation of lone actor extremist events (LOEEs), which are hard to anticipate, yet can be highly damaging to local and national communities and therefore must be…

In the Surveillance and Security Threat Monitor 2022-2023, the research project thematically examined threat developments.

During the 1980s and early 2000s, authors like Alex Schmid and Andrew Silke demonstrated the paucity of first-hand insights being used to study terrorism and the consequences this had for the reliability of the findings beings presented. But to what extent have these issues endured?

Now and then we organise book launches to present the latest publications, both academic and popular, in our broad field.

Source: Mol Pharmacol, Volume 87, Issue 2, pp. 305-13 (2015)

Psycholinguistic research

The aims of the project are to: further clarify 'inhibition by safety'; explore and describe all possible sagety factors, with a special focus on the primary human safety source: social connectedness; reviewing prolonged stress responses without stressors.

In October 2014 a new publication on artistic research has been launched. The book is called Artistic Experimentation in Music. An Anthology, edited by Darla Crispin and Bob Gilmore, and published by Leuven University Press.

GoodBrother aims to increase the awareness of the ethical, legal, and privacy issues associated with audio- and video-based monitoring and to propose privacy-aware working solutions for assisted living.

The Netherlands generally performs above average in the protection of personal data, according to research carried out at Leiden University. Germany is the leading country, while countries such as Italy and Romania are lagging behind.

If gifted children are experts in using strategies, why do they experience problems with learning? Why do they underachieve?

Cyber agent technology and intelligence agencies is a project that is commissioned by Tracks Inspector, a Dutch company that develops innovative software.

A warm welcome to the Graduate School of Social and Behavioural Sciences at Leiden University.

The project’s overall goal is to improve Indonesia’s environmental legal framework and its implementation by strengthening the regulatory capacity of the government, and by enhancing the capacity of CSOs and scholars to hold the government accountable for its regulatory performance.

The Faculty of Social and Behavioural Sciences brings together high-quality research and outstanding teaching.

LUCIS is an interfaculty knowledge centre offering a multidisciplinary and comparative view on Islam and Muslim societies.

Which brain cell does what, when Parkinson's disease arises? It won't be long before this jigsaw is solved piece by piece. Ahmed Mahfouz, computational biologist, combines bio-knowledge from Leiden with algorithms from Delft and is getting closer to finding the key.

What mechanisms shape faculty members' perspectives on their teaching role in research intensive universities?

In a longitudinal study, Eichengreen and colleagues explored how the certain aspects of emotional intelligence impact the development of adolescents’ mental health, thus identifying potential warning signs and targets for intervention programs. Despite a higher risk for mental health issues and lesser…

This project looks at the ways in which youth in southern Nigeria navigate their lives in a context of experiencing long-term socioeconomic uncertainty and political insecurity (duress).

If you want to take on an extra challenge during your bachelor’s programme, options like the Honours College, the Humanities Lab and the Academy of Creative and Performing Arts (ACPA) will give you additional depth, intensity and study credits. You can even do a double degree.

Are you ready to take on an extra challenge during your BA in Linguistics programme? With options like the Honours College, The Humanities Lab and the Academy of Creative and Performing Arts (ACPA), you can broaden your academic programme or add extra depth, intensity and ECTS – even a dual degree –…

What can continuity and change in the manufacturing of locally made ceramics from the early colonials Spanish towns of Concepción de la Vega, Cotuí and Nueva Cádiz (1492-1600) tell us about the choices people made in ceramic production as a reaction the the changing social environment?

The earth has more than 7 billion inhabitants, all of whom leave behind traces of pollution. However, not all forms of pollution have the same harmful effect. Leiden scientists help determine where we should put our priorities.