In this thesis, I targeted the orchid genus Lepanthes, one of the six genera of angiosperms that surpasses 1,000 species in the Neotropics, as a study model to investigate the evolutionary processes that promoted species diversifications.

The mission of the Plant Science research programme is to contribute to the sustainable production of high quality crops, flowers and high-value bio-based products. This is realised by generating fundamental knowledge of basic biological processes related to development of plants and their interaction…

Has there been continuity or change in US counterterrorism policy since 9/11? What factors led to the continuity or change, and how do we classify any such continuity or change?

In the past years access to EU law has been significantly enhanced via services such as EUR-Lex. This development not only allows for easy retrieval of individual legal acts, but for collecting information about the evolution of EU law in the aggregate as well.

Recent studies of Neandertal body mass and skin surface indicate raised energetic requirements in this lineage compared to anatomically modern humans.

β-Lactamases are enzymes that can break down β-lactam substrates, such as antibiotics, preventing the use of these antibiotics for the treatment of various infectious diseases. However, some compounds, β-lactamase inhibitors, can block these enzymes allowing for possible treatments using a combination…

All crested and marbled newts (the genus Triturus) suffer from an unusual genetic abnormality, called a balanced lethal system, that kills exactly half of their offspring. How can a trait so disadvantageous have survived millions of years of natural selection?

How do animals choose their partners? The answer is simple: it’s all about quality. While humans tend to wear clothes that happen to be in fashion, animals do nothing without a reason. Behind beautiful plumage or a deafening roar is only one message: I am in great shape. The evolutionary courtship displays…

In an unpredictable environment bacteria evolve the same strategy as shareholders who try to protect themselves against unpredictable swings in the stock market. Experimental evolution biologist Dr Bertus Beaumont published an article on this discovery on 5 November in the journal Nature.

Here I propose to study the relationship between autonomic pupil-synchronisation and trust, at the behavioural and neural level, and examine a targeted set of possible contextual moderators.

This is an Erasmus+ International Credit Mobility project of the Faculty of Humanities with the University of Hyderabad.

Having a chronic somatic condition can result in a variety of impairments in patients’ daily lives, including not only physical complaints such as pain, itch, and fatigue, but also problems of negative mood and impairments in social relationships. Next to disease characteristics, individual difference…

Some children and adolescents find it hard to attend school because of anxiety and/or depression, a problem which is often referred to as school refusal. The main research question is how we can best help these young people reduce their emotional distress and increase their school attendance in order…

What are the developmental pathways to social anxiety (disorder), the causal processes and maintaining factors? How do these factors interact in the development of social anxiety disorder? How can this knowledge be used to design and implement effective preventive intervention programs for youth?

Uncovering task solving processes in dynamic testing

The focus of the Bachelor Data Science & Artificial Intelligence is on computer science, and its applications in Artificial Intelligence. You will receive a strong basis in mathematics, statistics and computer science, combined with advanced knowledge of machine learning, cognitive science, human-robot…

The linguistic project constitutes the connection between the two other subprojects. It consists of two parts.

Terms used by literary critics in characterizing the style of novels are often impressionistic (‘baroque’, ‘austere’, ‘vivid’, ‘cerebral’ etc.). Foundations for such evaluations are usually not provided. A scientific way of studying and explaining style is lacking in present day Dutch Studies. Suzanne…

Leiden University researchers and their collaborators report the development of new research frameworks that use day-to-day smartphone behavior gathered from a large sample of healthy people to help understand aging, and how aging alters with epilepsy and stroke. These reports occupy two back-to-back…

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.

Which adolescents are more at risk of developing social anxiety disorder later in life?

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The starting point of Hermans' research is how both children's physical play and dance improvisation by professionals can be considered somatic practices where sense-making manifests itself in and between bodies, and through movement.

Your brain responds in a predictable way when it encounters new or difficult tasks. This unique book teaches you concrete techniques rooted in cognitive science that will improve the way you learn and think about code.

Music and language both communicate through sound, including timing and pitch. While language mainly conveys semantic meaning, instrumental music does not, and is typically seen as expressing emotion. This project investigates how well listeners recognize intended expressive feelings in music, instructed…

Study information

The more opportunities a child has to learn and develop, the stronger his or her future position in society. Leiden University investigates how the brain picks up information, and how learning processes can be influenced positively.

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When combined and used by specific people located in time and place, words can express something more than, different from, or even the opposite of their dictionary meanings.

This programme is aimed at students who have a strong interest in programming and computer science, as well as an interest in the cognitive psychology and artificial intelligence.

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An experimental approach to organic palaeolithic technology

Central elements in the research activities of all programme group members are: attachment, sensitive caregiving, and prevention and intervention.

In the Psychology Lab on Wheels, we conduct innovative research together with citizens. We drive our mobile lab to people all over the country helping to bridge the gap between science and society.

Promotores: Prof.dr. J.N. Kok, Prof.dr. C.A. Mandemakers, Co-Promotor: G. Bloothooft

The unit Health, Medical and Neuropsychology offers eduction and conducts research on related fields of Health, Medical and Neuropsychology.

Annemarie van Stee defended her thesis on 21 June 2017.

A key challenge in neuroscience is understanding how neurons in hundreds of interconnected brain regions integrate sensory inputs with previous expectations to initiate movements and make decisions.

In this provocative study, Shumon T. Hussain engages with the long-standing issue of French-Anglophone research conflicts in Palaeolithic archaeology.

Accurately recognising others’ emotions is a fundamental social skill, relevant for navigating the social world from early childhood. Children’s ability to do represents a milestone in their socioemotional development and is associated with a number of important psychosocial outcomes. Many individual…

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

How can we implement the technique of pharmacological resting-state fMRI to improve the diagnosis of dementia?

For the first time, a group of international and interdisciplinary researchers led by Karline Janmaat and her former MSc Student Chirag Chittar, have tested the several hypotheses on music simultaneously in a modern foraging society during their daily search for tubers – their staple food. They found…

The research of the unit is aimed at the development of models to explain and describe the influences in social systems. Social influences are studied in three ways: from the perspective of group dynamics, from an individual-cognitive perspective, and from an economic and consumer psychological pers…

This paper aims to understand the most common underlying problems causing strategic surprise in the context of the European Union.

The Cognitive Psychology Unit is organized as follows: