Can we predict fluctuations in suicidal ideation in a person’s daily life, from hour to hour?

Our mission is to improve the description, prediction, understanding and the prevention and treatment of mood disorders, including unipolar and bipolar depression, as well as suicidal thoughts, feelings, and behaviors. To tackle this ambitious mission, we focus on several research streams.

A continuous learning pathway in suicide prevention equips psychology students with essential knowledge and skills to recognise suicidality effectively and to initiate the conversation about it.

The aim of our research program is to better understand the etiology and course of mood, anxiety and stress-related disorders, such as depression and posttraumatic stress disorder (PTSD). We investigate both the transdiagnostic mechanisms underlying these disorders and work on improving the treatments…

In 2009-2010, the notion of a more ‘assertive’ China emerged in Western discourse, a viewpoint that China vehemently rejects. Nevertheless, especially after Xi Jinping rose to power in 2012, it is clear that China has abandoned its long-held foreign policy doctrine of ‘keeping a low profile.’

Homicide followed by the suicide of the perpetrator often leads to shock and incomprehension. It has been suggested that media reporting on such cases could lead to an imitation effect.

The Leiden Index of Depression Sensitivity (LEIDS) measures cognitive reactivity (CR) to sadness, an aspect of cognitive vulnerability to depression, conceptually similar to rumination.

Learning about circadian rhythms can help students to improve their sleep and overall well-being

Despite an increase in prevention efforts, suicide rate in the Netherlands has not dropped. More information and above all targeted action could save more lives.

Talking about suicide is important, but anything but comfortable. To make this difficult subject easier for students and staff to discuss, the university is organising a campaign week in line with the national campaign ‘1K Z1E J3’ (I see you) being run by Stichting 113 Zelfmoordpreventie (113 is the…

The Social Resilience & Security interdisciplinary programme broadens its scope by embedding two research projects lead by Dr. Joanne Mouthaan. The projects adress suicide prevention skills and mental health of Ukraine refugees. Both projects will be integrated in the programme with the aim to improve…

Disclaimer: Manuscripts related to the Resilience Center are for academic purposes only and are not intended for mass distribution or copying. Please refer to applicable laws for fair use, including copyright holders' restrictions on publications.

PhD candidate Marc Baggelaar of the Leiden Institute of Chemistry (LIC) graduated cum laude on Thursday 6 April. His thesis on the endocannabinoid system in the brain is very comprehensive and of high quality, according to the jury. ‘A very talented young scientist, that definitely belongs to the top…

The HOPES study is one of the largest investigations of this kind to date! By studying existing brain scans and data collected form over 4,000 14-25 year olds, the project team hopes to identify specific changes in the brain that make young people vulnerable to suicidal thoughts and behaviours.

The research addresses the question of “what is the impact of geopolitical changes to the pivot states in the Middle East? With special focus on Turkey, Iran and Saudi Arabia.”

This book expands on the existing literature on the international dimension of democratization by introducing the concept of democracy projection. Democracy projection is defined as the projection of (democratic) norms through the every-day practice of interactions-beyond any donor-recipient relationship-between…

On a referendum held on May 21, 2006, 55.5% of voters in Montenegro voted in favor of their country’s independence. While in numerical terms the outcome shows overwhelming support for independent Montenegro, from a normative standpoint it was a narrow win. The normative framework that regulated rules…

'Skill, craft, and poiesis-intensive innovation' is written by Cristina Grasseni and is published in FormAkademisk.

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Our research examines mental health risk and resilience in young people. We do so by integrating cultural, social, cognitive and neurobiological factors and their interactions.

In this research I assess the impact of the recently discovered gas reserves south off Cyprus on the escalation of the Cyprus conflict.

This study focuses on violence involving juveniles in conflict with the law who are deprived of their liberty in different institutions within the framework of the (juvenile) criminal justice system (inter alia, police detention, pre-trial detention and deprivation of liberty after conviction or sen…

European integration is under pressure. At the same time, the notion of a European administrative space is being explicitly voiced. But does a shared idea of the public servant exist in Europe?

Growing public backlash against international organizations (IOs) and attacks of national political elites on the rule of law increasingly challenge governance by IOs.

Social resilience and security has never been more important. Over the last 2 years, the COVID-19 pandemic has created a considerable disturbance to our personal and social lives. As a result, the general population reports more stress, loneliness and decreased quality of life. At the same time, there…

In this article, Bart Schuurman and Sarah Louise Carthy conduct further research into the understanding of the causes of terrorism by assessing differences and similarities between left-, right- and jihadist extremists and terrorists. The article draws on the Analysen zum Terrorismus, one of the most…

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Team Economic and Social History

The Institute of Psychology is committed to play a prominent role in teaching and research at the national and international level.

Recently, Europe was again shaken by some attacks. This ‘Elementair Deeltje’ places terrorism in a historical perspective and gives an up-to-date overview of this form of political violence.

Is blended care a feasible and effective treatment method for social anxiety in adolescence?

Explore an interactive i-doc platform for virtual navigation of ethnographically investigated case studies in Gdańsk, Turin, and Rotterdam.

The Team International Relations and European Studies addresses the interconnections and interdependence of contemporary global political, economic, security and culture from a multidisciplinary perspective rooted in the humanities. More specifically it is concerned with the study of international relations…

What is the role of technology and cyberculture in Korean social structures and in the potential formation of a new collective subjectivity? How do we reorient disoriented souls?

More than 600 staff members and students of Leiden University did not survive the war. Two of them were Caroline van Loen and Elsa Oppenheim .

By choosing Leiden University, you’ll be choosing to broaden your personal and academic horizons. You’ll be in excellent company too because you’ll be part of an inspiring community of students, lecturers and professors from all over the world. Founded in 1575, ours is the oldest university in the N…

Earlier this year, Spain passed a law that legalises euthanasia and assisted suicide. Spain is now the fourth country in Europe with such a law. Its introduction, however, is not plain sailing.

Are you dealing with an educational challenge or would like to explore innovation opportunities? We actively ideate, design, prototype, build, test real-world solutions to transform theoretical ideas into tangible solutions to enhance the educational landscape for the benefit of your students.

Rising geopolitical tensions are causing states and national elites to innovate their use of the past for present-day political ends. This is certainly true for the People’s Republic of China, which celebrated its 75th anniversary in 2024 amid mounting superpower rivalry, ideological tensions with the…

It has been argued that the Internet presents numerous new opportunities for crime, including homicide. So far, empirical scholarly research in this domain is rather limited. In order to discover how perpetrators have used the Internet in the homicides they have committed, we conducted an international…

Bij de Universiteit Leiden zet onze Onderzoeksgroep violence and violence prevention zich in voor het bevorderen van kennis en begrip op het gebied van geweld en geweldpreventie door middel van interdisciplinaire wetenschappen en innovatieve methodologieën. Onze faculteitsleden zijn toonaangevende…

Few have dared declare a winner of the debate between American president Donald Trump and his Democrat challenger Joe Biden. It was more about who was least worst. What do psychologist Willem van der Does, historian Andrew Gawthorpe and policy science scholar Brandon Zicha make of the debate?

From sleep problems to suicide attempts: the consequences of bullying can be very serious. The National Day against Bullying (in the Netherlands 19 April) is the opportunity for Leiden psychologist Mitch van Geel to share some recent insights from his research.

Every year on 26 November Leiden University commemorates the protest speech given by Professor Cleveringa against the Nazis. At least 663 students, staff and alumni of the University lost their lives during the Second World War, yet little was known about these victims. PhD candidate Adriënne Baars…