Cognitive biases affect how we perceive the world every day, but do they influence animal perception too? In my PhD project, I will study the cognitive biases in the acoustic perception in multiple species, to understand their origins and which role they play in the species-specific communication.

Bob van Grieken and Jaroslaw Kantorowicz published an article in the journal Geopolitics which explores the determinants of China's official financing of Pacific Island states.

This study investigates how two social and political developments, in the UK and Germany, impacted on the experiences of minorities and the attitudes of majorities vis-à-vis tolerance in those two countries. The results provide a thought-provoking picture of the views of minority and majority groups…

Argumentation and rhetorics is the study of how we convince people verbally. In other words, what do people say and how do they say it?

This article examines how immigration from Central and Eastern Europe influences political support for Eurosceptic parties.

What happens if a Member State decides to withdraw from the European Union? The “Brexit Charts” aim to provide information on the withdrawal procedure under Art. 50 TEU, on the legal consequences of leaving the EU and on the future relationship of the withdrawing state with the European Union.

This dissertation explores the relationship among creditors in sovereign debt restructuring and specifically focuses on the issue of inter-creditor equity.

On the occasion of the 80th anniversary of the magna carta of civil aviation, the Convention on International Civil Aviation (Chicago Convention 1944), Professor Steven Truxal has written a leading piece for the European Civil Aviation Conference: The Chicago system: a steadfast legal blueprint for…

The place of women in Leiden University was not steadily established for a very long time. Their roles spanned beyond the realms of academics and students. Seeking equality with men, they fought to obtain the right to work, to study and teach at university, to attain high-level jobs and to vote.

How do governments distribute resources across economic sectors during a crisis? And why do some sectors receive more than others? The recent COVID-19 pandemic has highlighted the urgency of these questions. In this paper, we explore the extent to which a political economy…

This report examines the questions

After researching inequity aversion in dogs and bonobos during her bachelor’s and master’s projects, Kia Radovanović conducted a study on cross-species pupil mimicry in dogs at the CoPAN Lab.

We are all aware of the importance of a healthy lifestyle. However, at the same time we also experience many difficulties when we are trying to change our behavior to become more healthy. For example, more often than not our good intentions to exercise more or to eat fewer unhealthy snacks fail miserably…

This research line is part of the living lab of the University’s Population Health interdisciplinary program, located at the LUMC Campus The Hague, where the Leiden University Medical Center collaborates with the Faculty of Governance and Global Affairs and the Faculty of Social and Behavioral Sciences…

Effectiveness of an early intervention program for anxiety-prone toddlers in the Netherlands

On 6 April the Netherlands will vote on far-reaching cooperation with Ukraine. Referenda are exceptional in Dutch political history, according to Professor of Electoral Research Joop van Holsteijn.

The gas prices now exceed 300 euros per megawatt hour – a record. The transition from fossil (natural gas, coal, oil) to renewable energy is needed and soon. But how do you get a society (and its citizens) to switch to sustainable energy?

On this page you can learn more about the history of our Faculty Awards and view the previous winners.

The Institute of Political Science is a vibrant department with nearly 70 academic staff in Leiden and nearby The Hague.

Madeleine O. Hosli & Jaroslaw Kantorowicz analyze EU states' foreign policy divergence at the UN General Debate, assessing if Lisbon Treaty reforms increased EU cohesion or if states maintain distinct positions.

Feedback from fellow students on academic writing is as informative as that of teachers.

Leiden University values participation: the participation organs are the ears and eyes of the university. They identify issues of concern among staff and students and help advise and decide on the future of our organisation. Something for you? Then stand as a candidate! This year, elections will…

The Leiden University Centre for International Relations (LUCIR) is a multi-disciplinary platform promoting research and education on international relations at Leiden University.

Are you a British citizen currently studying or working at Leiden University? Or are you a Leiden University student (thinking of) studying abroad in the UK? Find out about the effects of Brexit.

Indonesia’s labour law regime has changed profoundly since 1998, reflecting the sweeping social and political developments that followed Soeharto’s fall from power.

Tom Louwerse, lecturer and researcher at Leiden University’s Institute of Political Science, has been awarded a NWO Vidi grant. This will enable him to conduct research on how government and opposition parties cooperate in parliament and how this affects voters’ party choices and satisfaction with d…

Sara Polak, American Studies expert and University Lecturer investigates how American presidents deal with the media and how new, social media influence our collective memory and the political game. ‘Social media algorithms influence us and our political choices in ways we do not foresee’, Polak say…

Bianca Boyer is an associate professor in the unit of Developmental and Educational Psychology. She studies the effectiveness of treatments for children and adolescents with neurobiological developmental disorders, particularly ADHD and Autism Spectrum Disorders.

In this thesis, we have studied the potential of the zebrafish larval model in studying the ECS, as a complementary model to the existing rodent models.

On Thursday evening, three local councillors from the ONS.Vlaardingen party walked out of a council meeting during a vote on a no-confidence motion. One councillor even went home after the vote out of dissatisfaction with the proceedings. The no-confidence motion against Vlaardingen's municipal executive…

My research focuses on the acoustic diversity of the marine environment, how it shapes the ecology of marine animals, and how sensory pollutants can disturb the behaviour of acoustically active animals.

Personality is genetic in zebrafish: risk-taking parents have risk-taking children. These are the findings of research by Christian Tudorache and his team published in BMC Neuroscience.

Eveline Crone, professor of neurocognitive developmental psychology at Leiden University, has been awarded the Dr Hendrik Muller Prize for Behavioural and Social Sciences by KNAW.

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.

I am interested in coping with stress, on both the behavioral and the physiological level of biological function. I am predominantly working with zebrafish, but also other species in the field. My approach is multi-disciplinary and integrative, including molecular biology, morphology, biomechanics and…

Sarah Giest is a Professor of Public Policy with a focus on Innovation and Sustainability at the Public Administration Institute of Leiden University. She has been developing an interdisciplinary research agenda and teaching on using a policy lens to look at technical, environmental and social solutions…

Tommy van Steen is Associate Professor in the Cybersecurity Governance Group specialising in organisational and behavioural cybersecurity. His research interests include: cybersecurity behaviour of end-users, learning from what goes well, and organisational cybersecurity behaviour.

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.

Leiden psychologist Wilco van Dijk and communication scientist Jaap Ouwerkerk of VU University Amsterdam published a book about the emotion Schadenfreude. Van Dijk tells about Schadenfreude on BBC radio 4 All in the Mind.

Marie-Jeanne Holveck and Katharina Riebel from Behavioural Biology at the Institute of Biology at the Faculty of Science published their research in Proceedings B of The Royal Society.

George Floyd's death still leads to fierce protests against police violence and racism on a daily basis in the United States and abroad. We asked Paul Wouters how he experiences these developments and what this will mean for our faculty.

An international group of scientists has discovered that certain cells of our immune system – the so-called T cells – communicate with each other and work together as a team. To fight an infection they stimulate each other’s growth, but at the same time, they inhibit each other when there is a surplus…

Below are resources which provide a short primer on the subject of active learning.