The European Centre for Algorithmic Transparency (ECAT) is hosting a workshop in Seville on 12 November, with a particular focus on systemic risks related to the mental and physical health of minors.
The event will offer a chance for researchers to come together to learn from each other, exchange ideas and consider future collaborations. The focus will be on topics related to systemic risks (as set out in Art. 34 of the DSA), particularly those relating to the mental and physical health of minors.
Please note that the agenda is subject to updates.
- artificial intelligence | social media
- Wednesday 12 November 2025, 09:00 - 18:00 (CET)
Programme
- 12 Nov 2025, 08:30 - 09:00 (CET)Registration and coffee
- 09:00 - 09:10 (CET)Welcome
Alberto Pena Fernández, Head of ECAT
- 09:10 - 09:40 (CET)Young lives online: Views from the classroom
To anchor the day’s discussions in the lived experiences of young people, this first session will be dedicated to the insights of young students from the Seville International School. They will present findings from a survey study conducted within their school on the use and impact of online platforms on them and their classmates.
- 09:40 - 10:00 (CET)ECAT & minor protection: Insights and contributions
In this presentation, participants will hear about ECAT’s work related to the mental and physical health of minors. ECAT will share what the focus has been in the over two years of the team’s operations, as well as what are the current top priorities for research and policy support.
Presentation by Dr Yves Punie, Deputy Head of ECAT
- 10:00 - 11:00 (CET)A captive audience? Social media addiction and the features that make it hard for children to leave
In this panel discussion, experts on cognitive development, platform design and addiction will discuss what we know about social media addiction and the impact of extended digital media use on young people.
We will get the chance to hear how social media compares to other addictions, what overuse does to adolescents’ sleep patterns, and what makes minors a particularly vulnerable audience.
The session will also offer a chance to discuss which platform features can exacerbate addictive behaviours, as well as the types of interventions, by platforms, individuals or regulation, that may be most effective in preventing addiction from taking hold.
Panellists:
- Dr Alberto Monge Roffarello, Assistant Professor, Politecnico di Torino
- Dr Susanne Baumgartner, Assistant Professor, University of Amsterdam
- Dr Elisa Benedetti, Researcher, Laboratory of Epidemiology, Institute of Clinical Physiology, Italian National Research Council
Chair: Dr Astrid Bertrand, Scientific Officer, ECAT
- 11:00 - 11:45 (CET)Poster session (coffee break)
- 11:45 - 12:30 (CET)Paper presentations
During this session, a selection of the successful submissions to the workshop’s Call for Contributions will present their research. Participants will have the opportunity to explore the insights further in the dedicated poster sessions.
Presentations:
- Megan Nyhan (University College Dublin), Algorithmic Transparency: The EU Digital Services Act and Young People’s Experiences of Online Platforms
- Professor Lisa Henderson (University of York), Waking up to Smartphones: Towards Evidence Based Solutions
- Maike Resing (Landesanstalt fur Medien NRW), Systemic risks to minors on online platforms: evidence from three studies by Landesanstalt fur Medien NRW
- 12:30 - 13:30 (CET)Communities of pain: Use of social media by youth at risk of eating disorders and self-harm
Many young people spend several hours every day on online platforms, consuming and sharing content related to their moods, feelings about their bodies and their close relationships. For the most vulnerable, this may both work as an essential place of support and as a source of exacerbation of negative emotions.
In this session, we will discuss with experts how the online lives of vulnerable minors can affect them positively and negatively, and how risks can be effectively mitigated. We will also look into whether at-risk youth can be identified based on their online behaviour, and how this could be utilised to provide timely support.
Panellists:- Dr Florian Arendt, Assistant Professor, University of Vienna
- Lotte Rubæk, Team Leader, Suicide Prevention and Self-harm, Capital Region of Denmark
- Dr Diana Ramírez-Cifuentes, Senior Data Scientist and Researcher, CVC - UAB and Trilateral Research
Chair: Dr Emilia Gómez, Team lead, ECAT
- 13:30 - 15:00 (CET)Lunch
- 15:00 - 15:30 (CET)Agentic AI: Risks and opportunities for young people
AI chatbots that are simulating personal relationships, or so-called AI companions, are growing in popularity. This has raised concerns, particularly when it comes to children: will it discourage children from making ‘real’ friends, expose them to more inappropriate conversations and provide dangerous advice?
This keynote will explore these risks, ask what type of opportunities AI companions could bring, and discuss how we can ensure the technology is safe for children.
Keynote speaker:- Professor Nicole Krämer, Full Professor of Social Psychology, Media and Communication, University of Duisberg-Essen
- 15:30 - 16:00 (CET)Paper presentations
During this session, a selection of the successful submissions to the workshop’s Call for Contributions will present their research. Participants will have the opportunity to explore the insights further in the dedicated poster sessions.
Presentations:- Dr Urbano Reviglio (European University Institute), From Doomscrolling to Brainrotting: How VLOPs Undermine Autonomy and Civic Discourse through Dysfunctional Engagement?
- Professor Elisabeth Staksrud (University of Oslo), European regulatory principles for a safe Internet for children compared with the perspectives and experiences of children and youth with mental health difficulties
- 16:00 - 16:30 (CET)Poster session (coffee break)
- 16:30 - 17:30 (CET)Online influence on young people: Gender-based challenges and inequalities
Certain popular accounts on major online platforms are associated with communities that share toxic and discriminatory content against women. Their impact on young people has drawn increasing attention, following for instance, the Netflix series ‘Adolescence’ which portrayed a case where a young boy committed murder after exposure to communities expressing hostility toward women.
This panel will explore what research reveals about these online spaces: how they build audiences, which young people are most susceptible to their messaging, and what effects they may have on users, their communities and on society.
Panellists:- Professor Harriet Over, Deputy Head of Department - Research, University of York
- Dr Nicola Righetti, Assistant Professor, University of Urbino Carlo Bo
- Dr Craig Haslop, Senior Lecturer in Media, University of Liverpool
Chair: Emilie Sundorph, Project Officer, ECAT
- 17:30 - 17:35 (CET)Closing remarks
Alberto Pena Fernández, Head of ECAT
- 17:35 - 18:30 (CET)Networking reception
Speakers
Practical information
- When
- Wednesday 12 November 2025, 09:00 - 18:00 (CET)
- Languages
- English
Description
ECAT was established in 2023 to provide technical and scientific expertise for the enforcement of the Digital Services Act (DSA). As part of the Joint Research Centre, the European Commission’s science and knowledge service, it is essential for us to engage with and learn from the research community. We are therefore hosting a workshop on 12 November in Seville, bringing together researchers who can help shed light on the societal impact of online platforms and search engines.
The event will offer a chance for researchers to come together to learn from each other, exchange ideas and consider future collaborations. The focus will be on topics related to systemic risks (as set out in Art. 34 of the DSA), particularly those relating to the mental and physical health of minors.
At the workshop, we will hear from experts through keynotes, panel discussions and poster sessions displaying the work of researchers whose proposals were accepted through our Call for Contributions.
Registration for this event is now closed.
Accepted contributions for poster sessions
For this year's workshop. ECAT launched an open call for contributions to encourage the research community to share their work related to systemic risks. We received a wealth of high-quality proposals, and were grateful for this interest in contributing to ECAT's mission of enhancing our understanding of the impact of the online world, and providing scientific input for policymakers. Below you can find a list of those contributions that were accepted and will be represented with a poster at the event.
- Ad Personalization and Transparency in Mobile Ecosystems - A European Perspective
David Breuer (TU Darmstadt), Lucas Becker (TU Darmstadt), Matthias Hollick (TU Darmstadt)
Algorithmic Transparency: The EU Digital Services Act and Young People’s Experiences of Online Platforms
Megan Nyhan (University College Dublin), Pranav Narula (University College Dublin), Izzy Fox (Dublin City University), Kevin Doherty (University College Dublin), Ruihai Dong (University College Dublin), Barry O'Sullivan (University College Cork, Josephine Griffith (University of Galway), Susan Leavy (University College Dublin)
Children's protection online: The importance of discursive power in systemic risk management under the DSA
Elora Fernandes (KU Leuven), Andrea Palumbo (KU Leuven), Charlotte Ducuing (KU Leuven)
Defining, Measuring and Identifying Solutions for Mitigating Online Harms Facing Children and Adolescents
Sunny Xun Liu (Stanford University), Kang-Xing Jin (Stanford University), Anja Stevic (Stanford University), Angela Lee (Stanford University), Eleni Linos (Stanford University), Jeff Hancock (Stanford University)
Driven into Darkness
Amnesty International
European regulatory principles for a safe Internet for children compared with the perspectives and experiences of children and youth with mental health difficulties
Elisabeth Staksrud (University of Oslo), Mariya Stoilova (LSE), Sonia Livingstone (LSE), Richard Graham, Line Indrevoll Stänicke (University of Oslo), Reidar Schei Jessen (University of Oslo), Tine K. Jensen (University of Oslo)
Evaluating Content Moderation and Systemic Risks through the DSA’s Transparency Framework
Benedetta Tessa (University of Pisa/IIT-CNR) , Amaury Trujillo (IIT-CNR), Stefano Cresci (IIT-CNR)
From Doomscrolling to Brainrotting: How VLOPs Undermine Autonomy and Civic Discourse through Dysfunctional Engagement?
Urbano Reviglio (European University Institute)
Investigating the Harms of Viewing Online Misogyny on Young People
Delali Konu (University of York), Carl Bunce (University of Reading), Eleanor Willcox (University of Oxford), Paul Galdas (University of York), David Zendle (University of York), Harriet Over (University of York)
Studying Minors and Machines: Rethinking Longitudinal Research on Algorithmic Influence
Alexandra Weilenmann (University of Gothenburg), Alan Said (University of Gothenberg)
Systemic risks to minors on online platforms: evidence from three studies by Landesanstalt für Medien NRW
Maike Resing (Landesanstalt für Medien NRW), Meike Isenberg (Landesanstalt für Medien NRW)
Transparency in Practice? Platform Moderation Trends after Romania’s Annulled Presidential Election
Viktor Kaupp (Maastricht University), Carl-Anton Lüninck (Maastricht University), Elizabeth Mataj (Maastricht University), Henry Tari (Maastricht University), Catalina Goanta (Utrecht University), Adriana Iamnitchi (Maastricht University)
Waking up to Smartphones: Towards Evidence Based Solutions
Lisa Henderson (University of York), Emma Sullivan (University of York)
X’s Community Notes: Algorithmic resolution of crowd-sourced moderation on X in polarized settings across countries
Paul Bouchaud (CNRS, EHESS, SciencesPo), Pedro Ramaciotti (CNRS, SciencesPo, LPI)
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