What is the effectiveness of (booklet or online) self-help programmes for people with somatic stressors and depressive symptoms? What works best for whom? How to improve motivation and adherence?

PhD Defence

PhD Defence

Social and Behavioural Sciences

Spontaneously helping one another, why do we bother? It is believed that lending a hand to others promotes social bonding, helping us to connect with each other and even build friendships. In our experiment, in which the adult researcher ‘accidentally’ dropped matches on the floor, most adolescents…

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Promotor: Prof.dr. G.R. de Snoo, Co-promotor: R. Heijungs

Promotor: S.M. Verduyn Lunel, Co-promotor: O. van Gaans

On 4-5 December the Europa Institute and the Faculty of Governance and Global Affairs of Leiden University organize a conference on the Transatlantic Trade and Investment Partnership (TTIP).

Employer organizations have been presented as strong promoters of the liberalization of industrial relations in Europe. This article, in contrast, argues that the preferences of employers vis-à-vis liberalization are heterogeneous and documents how employer organizations in Spain, Italy, and Portugal…

This research project addresses an unexplored dimension of historical conflict resolution: the dynamics of strategic choices made by traders engaged in foreign trade in the city of Danzig (Gdansk) c. 1450-1580, a Hanseatic city under the Polish Crown.

Conference

Inaugural Lecture

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Recent welfare reforms in the Netherlands show a trend of reducing welfare accessibility and increasing obligations. Although the effects thereof on directly-targeted economic outcomes, such as welfare dependency and labor participation, are often assessed, potential spillovers to other economic and…

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Promotor: Prof.dr. E. Deprettere

Promotor: Prof.dr. J.M. van Ruitenbeek, Prof.dr. R.M. Tromp

The main aim of this thesis was to unravel the signaling and regulatory networks that drive tumor cell migration during breast cancer metastasis.

Children with autism spectrum disorder experience serious challenges in social functioning, which threatens their development in many areas of functioning.

Promotor: W.Th.F. den Hollander Co-Promotor: F.M. Spieksma

How does the endocannabinoid system in the zebrafish function at the molecular and phenotypic levels and how is it linked to the stress axis?

This study explores public leaders’ organizational learning orientation in the wake of a crisis. More precisely, we study the association between public leaders’ public service motivation and their learning orientation (instrumental versus political).

This project aims to explore, in general, what explains civil servants’ attitudes and behavior, and, in particular, why some civil servants are more committed to professional norms and public service values – such as impartiality, equity, efficiency, and innovation – than others.

Promotor: Prof.dr. M.L. van Hecke

Brain development in children with an extra X chromosome as compared to children with autism: evidence from MRI

How do cognitive, motivational, and affective processes interact to select actions?

Promotor: M.L. van Hecke

The United Nations Office for Disarmament Affairs (UNODA) has published the 2017 issue in their Civil Society and Disarmament series, titled Voluntary, Non-Binding Norms for Responsible State Behaviour in the Use of Information and Communications Technology: A Commentary. The series aims to provide…

The Cognitive Psychology Unit has two main reseach lines, which focus on basic research questions and more applied challenges.

The research connected to this topic is related to E-health.

It is the aim of this project to better understand how the physical properties of lipids influences the structure and overall barrier function of the skin.

Middle Paleolithic stone tool technology is one of the major sources of information about Neandertal behavior and adaptations. The Balkan Middle Paleolithic often remains outside of the major debates and interpretations of Neandertal behavior.

On 20 January 2022, Marco Stam defended the thesis 'Essays on Welfare Benefits, Employment, and Crime'. The doctoral research was supervised by Prof. M.G. Knoef.

In this project, we use social network analysis to analyze the behavior of users in online forums and associated marketplaces over time.

Together with two other authors, Jaroslaw Kantorowicz from ISGA investigates the susceptibility to believing in misinformation.

The group is involved in training in areas of diagnostic skills, treatment/prevention/intervention, neuropsychological assessment, behavioral observations, clinical interviewing, knowledge of intellectual disability, autism, ADHD, psychosis and aggression.

The role of transnational, non-institutional networks in the opening up of British transatlantic trade at the end of the 17th/beginning of the 18th century

Empathic or anxious mistakes? A neurocognitive investigation of the development of social performance monitoring in youth growing up in stressful versus non-stressful environments

The global population speaks approximately 7,000 different languages and approximately half of the world’s population is bilingual. The unique orthographic characteristics of different languages can help us to gain insight into the seemingly simple process of transforming written to spoken words (i.e.,…

Research into the development of privacy-friendly care games for children.

Parents may pass anxiety onto their offspring by exposing them to anxious behaviors in novel situations. Just as the parents’ anxious signals lead to anxiety, parents’ confident signals can ward off anxiety in the offspring. This project is seeking a new way to break anxiety transmission in the family…

In this research line, the role pharmacological agents and neurochemcial processes play in behavior and cognition is examined with a particular focus on pain, placebo and nocebo effects and intensive care treatments.

Today over 1000 chief executives and more than 40 world leaders meet in the Swiss village Davos to discuss the world's issues of today. What is the importance of the conference and what is the actual effectiveness? Dr. Alexandre Afonso, assistant professor in the Department of Public Administration,…

Promotores: Prof. dr. G.R. (Geert) de Snoo, Dr. E. (Ester) van der Voet

The Leiden Leadership Centre is a member of the Global Leadership Centres Roundtable (GLCR). The Global Leadership Centres Roundtable is the international network of university-based leadership centres.

Ideology and Actions