Explore philosophical research and education at the Leiden Institute for Philosophy. Our scholars study knowledge, ethics and existence, connecting classical and contemporary thought.

Operators in the Lexicon opens with an old chestnut: why are there no natural single word lexicalizations for negations of the propositional operator and and the predicate calculus operator all: why neither *nand nor *nall?

At LUCL we study almost all aspects of a wide range of African languages. From phonology to anthropological linguistics, from theoretical syntax to urban youth languages, we study it all.

Our mission is to advance the understanding of mental health of individuals with a history of stress and/or trauma through rigorous interdisciplinary research, integrating insights from clinical psychology, neurobiology, and social sciences. We are committed to translating our findings into innovative…

We are experts in the fields of languages, cultures, history, arts, societies and philosophy. Together we cover almost all continents and time periods. Knowledge of these disciplines contributes to a humane, safe and sustainable world.

This project looks at how the native language influences processing mechanisms of non-native language(s) as well has how it influences brain structure and functional connectivity.

The company Azafaros was established in 2018 to translate innovative science from Leiden University and Amsterdam University Medical Center into novel disease-modifying treatment modalities for rare genetic metabolic disorders such as lysosomal storage diseases.

Petra van der Bekerom, Joris van der Voet, and Johan Christensen, three assistant professors at Leiden University, conducted a large-scale survey experiment about whether citizens are more negative about failing service delivery than private organizations.

This thesis describes the use of the evolutionary approach in the study of language change, aiming to provide a better insight in the mechanisms that play a role in language change and to validate this approach in the field of language change.

Does an Emotional Working Memory Training show a beneficial transfer effect on emotion regulation (reappraisal) capacities in patients with Borderline Personality Disorder?

Across many decision-making tasks, people and animals systematically repeat (or alternate) their choices - even when the choices they make are intrinsically uncorrelated. This phenomenon (also known as 'sequential effect' or 'choice hysteresis') has been known for at least a century, and may be a stable…

When you apply for admission, you’ll be asked to submit several documents.

Along with your application, you will need to submit a variety of documents. The online application portal will let you know exactly which documents are required. Generally speaking, students need to submit the following documents:

A master's degree in Psychology at Leiden University combines theoretical knowledge with academic and professional skills, making you an attractive candidate for many employers.

The more we learn about a (neuro-)psychological or physical disorder and the related behavioral factors, the better we can not only identify them, but also treat them. It is therefore important that recent insights about (neuro-)psychological problems and related behavioral factors are incorporated…

From where litter ends up to which languages are spoken in Leiden and The Hague: over 50 interesting, surprising, complex and entertaining questions were sent in for the Citizen Science project to mark our 444th anniversary. Not one but two Citizen Science projects will be starting this year in Leiden…

Are you interested in the neurocognitive and biological roots of learning, behaviour and emotions in children? If so, the programme in Applied Neuroscience in Human Development might be the specialisation you are looking for.

We perform multidisciplinary research at molecular, cellular, and organismal levels of animal biology to increase fundamental understanding of health and disease.

The Faculty of Humanities

Unravelling Mindreading Skills through Storytelling and Narratives

Eduard Fosch-Villaronga, Marie Skłodowska-Curie Postdoctoral Researcher at eLaw- Center for Law and Digital Technologies, just published a book on Robots, Healthcare, and the Law. Regulating Automation in Personal Care.

On the 17th of December, Jin Wang successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Jin on this achievement!

Resilient future generations that will shape a healthy society.

This PhD project investigates how literary translators and journalists react and respond to machine-translated metaphors and what the repercussions for professional practice are.

How do you combine an academic career with parenting young children? For many early‑career researchers, this is a daily challenge: from lack of sleep and unpredictable childcare to publication pressure and implicit expectations within academia, particularly during the early years of parenthood. Questions…

Research at the Leiden University Centre for Linguistics (LUCL) focuses on linguistic variation and diversity. In order to create more awareness and scientific understanding of this topic, research activities are clustered around six (overlapping) umbrella programmes. Many of our researchers are active…

Protests against textbooks on trans persons in America and against a reading hour by drag queens in Rotterdam: it has been raining protests recently against people with a gender expression that does not match their birth sex. Why does this evoke such resistance? We asked Professor by special appointment…

PhD defence

Alumni event, Lezing

PhD defence

PhD defence

Lindsey Boosten followed her passion by combining the study of aviation and law in the Advanced Master in Air and Space Law in Leiden. It turned out to be a great choice: ‘It was one of the best years from my student days.’

The research conducted at the Health, Medical and Neuropsychology unit investigates the psychological factors of health and disease, which allows for the development of innovative treatments.

From 26 August until 5 September 2019, a group of 20 Chinese government officials, industry representatives and academics attended an intensive course on space law and policy at the International Institute of Air and Space Law, organized in cooperation with Avans+ in Breda.

Researchers from the Institute of Psychology have secured NWO Open Competition XS grants, each worth up to €50,000. One of the projects explores how making music together can enhance cooperation. Discover more about all five research projects.

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…

As a psychologist and pilot, Bert Busscher is interested in the phenomenon often termed as fear of flying. Busscher discovered that the heart rate of a person undergoing a therapeutic flight shows how much they still suffer from fear of flying. The post-flight heart rate can even predict whether the…

Researchers at Leiden University and the National Autonomous University of Mexico (UNAM) have launched an initiative to learn more about the experiences of migrants travelling through the Darién Gap, with a focus on forced migration.

This project aims to identify which aspects of exploring a novel environment produce beneficial effects on memory. The effects of novelty will be investigated across the lifespan, including children, adolescents and older adults.

Have you ever stood in front of an abstract artwork and thought: “a monkey could have done that!”. As it turns out, you are wrong.

Within the Graduate School you can conduct your PhD research in a wide range of subjects across the Social and Behavioural Sciences, with five distinct research areas offered by its Institutes.

Development of effective VR training for International Law of Armed Conflict (ILAC)

This study aims to answer two main research questions: (1) What are the main predictors of work ability in employees with migraine? (2) Can we optimise work ability in employees with migraine using a web-based intervention focused on these relevant predictors?

In the first year, the Linguistics programme provides a sound basis for specialisation and helps you develop your academic skills. In the second year, you will choose one of our four specialisations. While focusing on this track in your second and third year, you can also choose electives outside your…

Below you can read about studies we have carried out in the past.

What did psychology student Jessie learn while working at a psychiatric hospital in The Gambia? And why is Noman from Yemen now studying political science in Leiden? Thanks to donations from alumni, students have the opportunity to spend time abroad funded by a LUF grant. Jessie and Noman talk about…