• 1122 Citations

Research output per year

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Personal profile

Research profile

Martijn Willemsen is an Associate Professor on human decision making in interactive systems in the Human Technology Interaction group at Eindhoven University of Technology (TU/e). Martijn researches the cognitive aspects of Human-Technology Interaction, with a strong focus on judgment and decision making in online environments. His applied research focuses on how online decisions can be supported by recommender systems, and includes domains such as movies, health related decisions and energy-saving measures. From a more theoretical perspective, he has a special interest in process tracing technologies to capture and analyze in detail information processing of decision makers.

His applied research focuses on online consumer decision making including environmental and health decisions and how these can be supported by recommender systems. Recent research has focused on user-centric development and evaluation of recommender systems and the psychological aspects of decision making in recommender systems. Topics include choice overload, the impact of diversification on choice difficulty and choice satisfaction and how memory processes influence rating behavior.

Academic background

Martijn Willemsen holds an MSc in Electrical Engineering and in Technology and Society from TU/e. After obtaining his PhD in the psychology of decision making, he obtained a Veni grant from Dutch national science foundation NOW. He worked as a postdoc at Columbia University, where he developed, together with Eric Johnson, mouselabWEB: an online tool for studying information acquisition processes of decision makers.  

In addition to his position at TU/e, Martijn also teaches in the data science programs of the Jheronimus Academy of Data Science (jads.nl). He is part of the core team of the Customer Journey Research Program in the Data Science Center Eindhoven (DSC/e) and of the Humans and Data research team at JADS, Marienburg. He has regularly contributed book chapters as well as articles to conference publications and journals, including Current Directions in Psychological Science and ACM Transactions on Interactive Intelligent Systems.

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With a little help from my friends

Willemsen, M. C. & Starke, A. D.


Project: Research direct

Research Output

  • 1 Citation (Scopus)
    3 Downloads (Pure)

    Playing with fire : understanding how experiencing a fire in an immersive virtual environment affects prevention behavior

    Jansen, P. C. P., Snijders, C. C. P. & Willemsen, M. C., 1 Jan 2020, In : PLoS ONE. 15, 3, 29 p., e0229197.

    Research output: Contribution to journalArticleAcademicpeer-review

    Open Access
  • 7 Downloads (Pure)

    With a little help from my peers

    Starke, A. D., Willemsen, M. C. & Snijders, C., 17 Mar 2020, Proceedings of the 25th International Conference on Intelligent User Interfaces, IUI 2020. Association for Computing Machinery, Inc, p. 568-578 11 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    Open Access
  • (Re)visiting the decision factory: observing cognition with MouselabWEB

    Willemsen, M. C. & Johnson, E., 2019, A handbook of process tracing methods. Schulte-Mecklenbeck, M., Kuehberger, A. & Johnson, J. G. (eds.). 2nd ed. New York: Routledge Taylor & Francis Group, p. 76-95

    Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

  • Courses

    Cognitive Science

    1/09/17 → …


    Decision theory

    1/09/13 → …


    HTI Research project

    1/09/15 → …


    Press / Media

    Student theses

    Adapting a Group Music Recommender System (GMRS) to its session-based purpose

    Author: Janissen, B., 30 Sep 2019

    Supervisor: Willemsen, M. (Supervisor 1) & Snijders, C. (Supervisor 2)

    Student thesis: Master


    Adaptive advice: adapting a recommender system for energy-saving behaviors to personal differences in decision-making

    Author: Knijnenburg, B., 31 Aug 2009

    Supervisor: Willemsen, M. (Supervisor 1) & Dellaert, B. G. (Supervisor 2)

    Student thesis: Master


    Albert Heijn beleef de service met ons mee!

    Author: Dalm, W., 31 Oct 2008

    Supervisor: Willemsen, M. (Supervisor 1) & Snijders, C. (Supervisor 2)

    Student thesis: Master


    Ambient-light and sonification feedback to support home-based resistance training for normo- and pre-hypertensive individuals

    Author: den Boer, N., 29 Mar 2018

    Supervisor: Radha, M. (Supervisor 1), Willemsen, M. (Supervisor 2) & IJsselsteijn, W. (Supervisor 2)

    Student thesis: Master