Dr. Lisa Merten

Postdoc Researcher Media Use & Digital Communication

Lisa Merten has been working as a researcher at the Leibniz Institute for Media Research | Hans-Bredow-Institut (HBI) in Research Program 1 “Transformation of Public Communication – Journalistic and Intermediary Functions in the Process of Opinion Formation” since July 2015. Her research interests include media use in digital media environments, especially with regard to the reception and effects of information-oriented media offerings, personalisation processes in publics shaped by algorithms and the development of digital methods.

As principal investigator and project coordinator, Lisa is currently leading the computational social science project “Political polarization and individualized online information environments: A longitudinal tracking study (POLTRACK)” investigating the interplay of individual information repertoires and the polarization of political opinions over time.  In this collaborative project between the HBI, GESIS, and the Universities of Bremen and Konstanz, they collect tracking and survey data from online panelists and conduct automated online analysis of the media content seen by the panelists.

In addition, in the DFG project “Public Connection” Lisa and her colleagues are investigating how users connect to different publics through the way they use media and other communicative practices.

Lisa is co-PI at the Research Institute Social Cohesion in the subproject “Media Use and Social Cohesion”. Together with Hannah Immler she is running a network and content analysis of Instagram accounts to examine whether and how political influencers in social media can reach populations without much information-oriented social media use.

In the summer semester of 2021, she substituted an assistant professor of Computational Social Science at the Center for Data and Methods at the University of Konstanz on a part-time basis. She has also taught at the Universität Hamburg, University of Augsburg, and Kiel University of Applied Sciences.

Career Path

Her cumulative dissertation project at Universität Hamburg focused on practices of news use on social networking platforms. Her dissertation article on practices of personal news curation on social media based on data from the Reuters Institute Digital News Survey named Article of the Year 2021 by Digital Journalism.

Lisa studied communication science at the University of Leipzig, at the TU Dresden as well as at the Universiteit van Amsterdam and Boston University with a scholarship from the Studienstiftung des Deutschen Volkes. After and during her studies, she worked in market and media research (e.g. Sinus Institute, ZDF Media Research, Gruner & Jahr, mindline, election campaign Elisabeth Warren for Massachusetts).

Contact information

Dr. Lisa Merten

Postdoc Researcher Media Use & Digital Communication

Leibniz Institute for Media Research | Hans-Bredow-Institut (HBI)
Rothenbaumchaussee 36
20148 Hamburg
Germany

Last update: 04.07.2024

Works by Dr. Lisa Merten

Cover of Working Paper No. 75
Publikation Working Paper Available for Download

Labeling of Edited (Influencer) Photos: Necessity, Effect, Regulatory Approaches

Do digitally edited photos in social media have to be labeled? On behalf of the Commission for the Protection of Minors in the Media (KJM), the HBI investigated the necessity of a legal labeling requirement for edited photos and videos. The expert opinion was presented to the public on 5 February 2025 and is available for download here as a working paper.

Illustration: ein oranger Roboter sitzt inmitten schwarzer Figuren, die Menschen darstellen
Projekt Project of the DFG Research Group ComAI

Communicative AI and Deliberative Quality

What impact do social bots that use Large Language Models (LLMs) have on the quality of political discourse? The project investigates communicative AI in the social domain of political discourse using discourse monitoring and discourse intervention and thus with a largely experimental approach. The case studies are debates in German on the topic of climate change on X, Mastodon and Bluesky.

Cover of the online article on “Mediendiskurs”
Publikation Article on the Platform mediendiskurs

About Constant Dripping and the Sum of Its Parts

The article by Stephan Dreyer and Sünje Andresen examines the challenges that arise for the regulatory framework of child and youth media protection as a result of “micro content” and the cross-platform media use of children and young people, and investigates whether and how regulation can do justice to these new realities.

Cover of a publication
Publikation Conversational Atmosphere Report

Information Ecosystems and Troubled Democracy

Do information ecosystems weaken democracy and promote the viral spread of mis- and disinformation? In the report “Information Ecosystems and Troubled Democracy: A Global Synthesis of the State of Knowledge on New Media, AI and Data Governance”, an international team of researchers assesses the role of information ecosystems.

Mit Dall-E generierte Illustration eines Newsrooms, den ein Roboter und ein Mensch betreten
Projekt Project of the DFG Research Group ComAI

Automation of News and Journalistic Autonomy

The project, which is part of the DFG research group ComAI, investigates communicative AI in journalism by analyzing the associated challenges for journalistic autonomy at the interactional, organizational, and societal levels.

Handydisplay mit mehren App-Icons Chat GPT
Projekt Project of the DFG Research Group ComAI

The Juridification of Communicative AI

The project, which is part of the DFG research group ComAI, is investigating the legal framework for communicative bots (in particular ChatGPT) and social bots (in particular X and Facebook) – on the one hand from the perspective of communication law, and on the other hand from the perspective of emerging AI regulation.

Cover des Impulspapiers
Publikation Discussion Paper for the Friedich-Ebert-Stiftung

How Can the Resilience of the German Media System Be Strengthened?

Tobias Mast has published a paper in the Friedrich-Ebert-Stiftung's ‘FES Impuls’ series. The paper examines the legal and structural foundations of public broadcasting and makes it clear that reforms are necessary to ensure its independence in the long term.

Cover des Arbeitspapiers Nr. 74 "Jahr der Nachricht"
Publikation Working Paper No. 74 Available for Download

Experiences with Hands-On Actions in the Year of the News 2024

The "Year of the News 2024" project, part of the #UseTheNews initiative, aims to reach young people with a range of journalistic content and activities and get them involved in journalism. Leonie Wunderlich and Dr. Sascha Hölig researched how young people engage with the campaign and these activities.

Cover of issue 4 of the journal "Medien & Kommunikationswissenschaft"
Publikation Available as Open Access

M&K 4/2024 Published

The articles in M&K 4/2024 focus, among other things, on the topics of media use research, satire and the role of news agencies. All content is available in open access via the eLibrary of the Nomos publishing house.

first page of the online article
Publikation Dossier of the Federal Agency for Civic Education

AI in Social Media

In the online dossier ‘When Appearances Are Deceiving – Deepfakes and Political Reality’ from the Federal Agency for Civic Education (bpb), Jan-Hinrik Schmidt explains how social media platforms have been using machine learning technologies for some time now to curate and moderate content.

Cover of Working Paper No. 73 SIKID
Publikation Working Paper Available for Download

Regulations for Empirical Research with Children

No data processing without the informed consent of the persons concerned. This is one of the conclusions of Sünje Andresen, Stephan Dreyer and Neda Wysocki, who have looked at the legal issues and imponderables in empirical research with children.

Der Schiftsteller Siegfried Lenz vor Hafenkulisse
Projekt Literature on the Radio

Siegfried Lenz: How the Author Uses the Media

The project examines the radio works of the renowned Hamburg author Siegfried Lenz (1926-2014) and documents in three extensive volumes what Lenz wrote for radio from the 1950s to the 1970s, mostly for the NDR.

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