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This PhD dissertation examines international responsibility for the crime of aggression from a public international law perspective. Under customary international law, as well as the amendments to the Rome Statute of the International Criminal Court adopted in the Review Conference in Kampala in 2010,…

How does preschoolers’ play style relate to their aggressive impulses?

Promotor: R.C.M. Pelger Co-Promotor: G. van der Pluijm

Young children who are less empathetic than their peers are more likely to be aggressive when older. This is what Malou Noten concludes in her dissertation. PhD defence on 25 November.

Zebrafish-human communication shows that cancer cells lacking a signaling protein are less able to develop aggressive metastatic properties. This discovery has been made by molecular cell biologist Claudia Tulotta. PhD defence 14 June.

The research conducted by Tilburg University and Leiden University on the relationship between aggression among prisoners and the strictness of the prison regime has received much attention in the national media.

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Birds around airports are more aggressive and sing as if they have hearing loss. Collaboration between researchers of Manchester Metropolitan University and the Institute of Biology Leiden has led to surprising new findings about the impact of anthropogenic noise on birds around airports. Publication…

Young children exhibit more aggressive behaviour if their nervous system fails to respond adequately to stress situations and if they are exposed to risk factors such as smoking or psychological problems experienced by the mother during the pregnancy. This is the conclusion of PhD candidate Jill Suurland.…

Cultural and individual differences

Adolescents with autism or hearing loss report fewer feelings of guilt and shame than their peers. However, guilt does still serve a ‘corrective function’ in this group. This is what Evelien Broekhof’s dissertation reveals. PhD defence on 4 June.

Leiden University neuropsychologists have shown that customised intervention pays off. A new fundamental research-based approach in children who are in danger of going off the rails has delivered spectacular results.

Understanding individual differences in self-regulation in boys with ODD/CD on the level of brain, cognition and behavior

The roles of shame, guilt and social access in adolescent aggression

PhD Defence

Aggression inflicts a huge personal, psychological and financial burden on affected individuals, their relatives, and society at large. Despite large scientific, preventive, and treatment investments, no decrease in aggressive behaviour is seen. By combining interdisciplinary expertise the ACTION consortium…

The Department of Economics concentrates its research and teaching on Social Policies, Public Finance and Law and Economics

PhD Defence

PhD Defence

Book Launch & Panel Discussion

How does stress affect different components of behavioral impulsivity and aggression in patients with Borderline Personality Disorder compared to clinical controls (patients with Attention Deficit Hyperactivity Disorder) and healthy controls?

The group is involved in training in areas of diagnostic skills, treatment/prevention/intervention, neuropsychological assessment, behavioral observations, clinical interviewing, psychoeducation for parents and teachers, knowledge of intellectual disability, autism, ADHD, psychosis, aggression, as well…

Social aspects of the learning environment, also called classroom climate, are important for students’ cognitive and affective learning outcomes. In this thesis the classroom climate is operationalised by means of two components: the teacher-class relationship and classroom discipline.

PhD Defence

PhD Defence

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Leiden University social scientists have shown that customised intervention pays off. A new fundamental research-based approach in children who are in danger of going off the rails has delivered spectacular results.

Organized by the Grotius Centre for International Legal Studies, this programme enables students and professionals from all over the world to engage in discussions on the prospects and challenges of international criminal justice. The 18th edition of the International Criminal Law Summer School will…

Nature, nurture and neural mechanisms of social emotion regulation in childhood

Promotores: Wim Jiskoot; Ferry Ossendorp

Circulating in Brazil's social media today are many vicious attacks against presidential candidate Luiz Inácio Lula da Silva, known simply as Lula. Widely and enthusiastically shared memes humiliate Lula by depicting him as a poor, uneducated drunkard who deserves to be in jail, thus criminalizing his…

Effects of maternal smoking, premature birth, intra-uterine growth retardation and asphyxia on child development.

How is structural and functional brain development related to behavioral change in cognitive-control, impulse regulation, and socio-emotional functioning?

In this thesis, we aimed to better understand the underlying mechanisms involved in TNBC progression and metastasis formation and discover new targets to reduce breast cancer related deaths.

The word ¨pyroptosis¨ can be understood as ¨fiery falling¨, which describes the bursting of pro-inflammatory signals from the dying cell. Our observations indicate that pyroptosis also ¨spreads like wildfire¨ and once a cell dies via pyroptotic cell death, neighbouring cells are more prone to die as…

Triple-negative breast cancer (TNBC) constitutes a small subtype (~15%) of breast cancer, but causes the majority of breast cancer-related deaths.

All living creatures have to cope with environmental demands and threats that challenge their physical or emotional homeostasis.