Transformation of Journalism and the Public Sphere

The research group ‘Transformation of Journalism and the Public Sphere’ examines the transformation of journalism and the public sphere through an empirical and theory-driven approach – partly to understand what this means for democratic cohesion.

Journalism and the public sphere are emerging under new circumstances today: artificial intelligence is not merely intervening from the outside, but is becoming part of society’s communicative DNA. Language models help shape the narrative, platforms pre-sort content, and recommendation systems decide what reaches the public sphere in the first place – and this is shifting the way society communicates with itself.

One focus of the research group is on communicative AI: language models and automated systems have long since ceased to be mere tools; instead, they are themselves becoming participants in social communication. They intervene deeply in the structures through which the public sphere is formed. We analyse this reciprocal appropriation: how AI permeates communicative fields such as journalism, whilst at the same time being appropriated and integrated by people and organisations.

Another strand of our research examines the role that media and communication play in fostering – or jeopardising – social cohesion, and how the social order of understanding and media usage are changing in the digital age – supported by empirical evidence, for example through surveys on the cohesion-related services provided by public service broadcasters or participation in the qualitative panel of the Research Institute for Social Cohesion. Knowledge transfer is of particular importance here: we actively contribute our findings to public discourse and to dialogue with editorial teams, educational institutions and opinion leaders.

Our research is theory-driven, interdisciplinary, methodologically open, internationally networked – and consistently conducted through dialogue-oriented exchange with practitioners and the public. As part of the Worlds of Journalism Study (WJS), the world’s largest comparative study on the state of journalism, we contribute to international journalism research.

Overview

Leaders

Last update: 24.09.2026

Blog Articles, News, Projects, Publications, Podcast Episodes

Stephan Dreyer
Podcast "Die Justizreporter*innen"

Social Media: Harmful Enough to Require a Minimum Age?

Stephan Dreyer was a guest on the ARD podcast Die Justizreporter*innen, where he discussed social media bans for children and young people with reporters Egzona Hyseni and Philip Raillon. He warns against disproportionate interventions and emphasizes the ambivalent role of parents and the danger of negative side effects.

Jan-Hinrik Schmidt mit einem Mikrofon in der Hand.
Cohesion Study by ARD, ZDF, and Deutschlandradio

Social Cohesion and the Role of Public Service Media

ARD, ZDF, and Deutschlandradio—with scientific advice from Jan-Hinrik Schmidt—conducted a study to examine how the population perceives social cohesion and what role public broadcasters play in this. One finding was that more than half of respondents see them as making an important contribution to cohesion.

Claudia Lampert
Protecting Children and Young People in the Digital World

Claudia Lampert Appointed to Expert Commission

Dr. Claudia Lampert will be part of the expert commission appointed by the German federal government to examine the steps necessary for effective protection of children and young people in the media.

Screenshot of the website diskursmonitor, entry “Social Bots” by Gregor Wiedemann
Online Portal for Strategic Communication

Glossary Entry on “Social Bots”

Dr. Gregor Wiedemann wrote a glossary entry on “social bots” for Diskursmonitor, a collaborative online platform that aims to educate and document strategic communication. This topic is marked by major controversy in academia, some of which has played out in public.

Cover of the M&K journal, issue 3/2025
M&K 3/2025 as Special Issue

Diversity, Intersectionality, and Gender in Journalism

The third issue of M&K in 2025 is a special edition on "Diversity, Intersectionality, and Gender in Journalism," edited by Margreth Lünenborg, Ana-Nzinga Weiß, Yener Bayramoğlu, and Bernadette Uth. The nine articles are available open access on the Nomos eLibrary.

Cover of an article by Judith Möller et al. in the journal
Article in Journal of Communication

Positioning and Presentation of Articles in News Aggregators

In the study “Nudges for News Recommenders,” Dr. Nicolas Mattis, Lucien Heitz, Dr. Philipp K. Masur, Prof. Dr. Judith Möller, and Prof. Dr. Wouter van Atteveldt examine how the placement and presentation of environmental news in news aggregators can influence user behavior.

Dartscheibe mit roten Pfeilen an einer Wand.
Media Quiz

Quiz: How Much Do You Know About Media and Freedom of the Press?

Matthias C. Kettemann developed a quiz for the Leibniz Association and t-online's "Ten Questions, One Expert — The Science Quiz" format. The quiz focuses on the key question: "How does the U.S. media landscape differ from that in Germany?"

Cover of the Oxford Handbook
Digital Orders of the Future

Digital Constitutionalism Rethought

In a chapter of the Oxford Handbook of Digital Constitutionalism, Matthias C. Kettemann and Anna Sophia Tiedeke explore digital constitutionalism from the perspective of various normativities. These are the diverse rules, values, and organizing principles that shape the digital space.

Stephan Dreyer
Interview with Evangelische Pressedienst

Social Media Ban Only Possible at EU Level

Media legal expert Stephan Dreyer explains the legal hurdles to banning social media for under-16s in Germany. According to Stephan Dreyer, German politicians have no regulatory authority in this area due to the primacy of the European Union's Digital Services Act (DSA), which came into force in 2024. A ban could therefore only be implemented at EU level.

Eine hübsche junge Familie aus Vater, Mutter Kind blicken strahlend in die Kamera, im Vordergrund links ein Ringlicht
Project for State Media Authorities

Babies and Toddlers as Family Influencers

The HBI is conducting a qualitative and quantitative study to examine how babies and young children under the age of five are portrayed on commercial German-language 'family influencing' profiles on Instagram, TikTok and YouTube. A team led by Dr. Claudia Lampert and Dr. Stephan Dreyer is discussing the findings in relation to the existing legal framework and media ethics considerations.

Martin Fertmann
Successfully Completed Doctorate

Congratulations, Martin Fertmann!

Martin Fertmann successfully defended his law doctoral thesis on the topic of “Human Rights Socialization on Online Platforms: On the Self-Description and External Description of the ‘Meta Oversight Board.” Congratulations!

Cover des Buchs "Recht der Digitalisierung"
Available Open Access

Law of Digitalization

Can the right legal framework meet the central challenges of digitization? This volume, edited by Prof. Dr. Matthias C. Kettemann, explores important new areas of law, the regulation of AI, the role of digital services, and the characteristics of effective technology policy and sensible innovation law.

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