Welcome to brownie, the first Java-based NeuroIS tool for economic experiments.


In the field of NeuroIS, experimental software needs to simultaneously present experimental stimuli to participants while recording, analyzing, or displaying neurophysiological measures. For example, a user’s heart beat (neurophysiological measure) might be recorded during interaction with an e-commerce website (stimulus) to track changes in user arousal, or a user might be shown changing arousal levels during an exciting game. We have developed an experimental software solution that addresses a wide range of needs of the NeuroIS researcher: (1) it integrates neurophysiological measurements, (2) it incorporates real-time processing of neurophysiological data, (3) it facilitates research on individual and group behavior in the lab, and (4) it offers a large variety of options for presenting experimental stimuli, and (v) it is open-source and easily extensible with open-source libraries.


  • To develop a framework for conducting economic experiments on Java.
  • Implement the basic building blocks of experiments, such as "Trial", "Session", "Repeated", "Stranger/Partner Matching", etc.
  • Enable to design experiments using Java Swing's extensive UI toolbox.
  • To integrate elements of Neuro- and Psychophysio- logical experiments, such as Event markers, and Sensor data handling.
  • Easier data analysis by directly logging Events of interest into the database.
  • Achieving a stable core, and make the platform available for distribution and use.



We are always looking for researchers and research teams to implement and run their experiment on the platform. Also, we are welcoming any students with Java experience to help us developing the platform.

Source code download here.

To request access to the source code, please email or


Publications About The Experimental Platform Brownie

  • Hariharan, A., Adam, M. T. P., Dorner, V., Lux, E., Müller, M., Pfeiffer, J., Weinhardt, C. (2016, in press). Brownie: A platform for conducting NeuroIS experiments. Journal of the Association for Information Systems (accepted on 23.09.2016).
  • Müller, M. B.; Hariharan, A.; Adam, M. 2014 A NeuroIS Platform for Lab Experiments. in: Davis, F.; Riedl, R.; vom Brocke, J.; Leger, P.-M.; Randolph, A. (eds.), Proceedings Gmunden Retreat on NeuroIS 2014. (Gmunden, Austria).



Publications Using The Experimental Platform Brownie

  • Adam, M. T. P., Krämer, J., Müller, M. B. (2015). Auction Fever! How time pressure and social competition affect bidders' arousal and bids in retail auctions. Journal of Retailing, 91(3), 468–485. doi:10.1016/j.jretai.2015.01.003
  • Both, F., Adam, M. T. P., Dorner, V., Hariharan, A., Lux, E., Weinhardt, C. (2016). A tabu search-based approach for perfect stranger matching in economic experiments. Economics Letters, 145(1), 235–238. doi:10.1016/j.econlet.2016.06.028
  • Hariharan, A., Fuong, K., Adam, M. T. P. (2013). Towards understanding the interplay of cognitive demand and arousal in auction bidding. ECIS 2014 Proceedings (European Conference of Information Systems), Tel Aviv, Israel, 1–10.
  • Hariharan, A., Adam, M. T. P., Teubner, T., Weinhardt, C. (2016, in press). Understanding the interplay of emotional arousal and cognitive workload in auction bidding. Electronic Markets. doi:10.1007/s12525-016-0224-3
  • Hawlitschek, F., Jansen, L. E., Lux, E., Teubner, T., & Weinhardt, C. (2016, January). Colors and Trust: The Influence of User Interface Design on Trust and Reciprocity. In 2016 49th Hawaii International Conference on System Sciences (HICSS) (pp. 590-599). IEEE.
  • Horstmann, N., Kraemer, J., & Schnurr, D. (2016). Wholesale Competition, Open Access Regulation and Tacit Collusion. Open Access Regulation and Tacit Collusion (June 15, 2016).
  • Horstmann, N., Krämer, J., Schnurr, D. (2014). A Behavioural Approach towards NGAN Regulation – Experimental Evaluation of Regulatory Institutions. 25th European Regional Conference of the International Telecommunications Society (ITS). (Brussels, Belgium).
  • Horstmann, N., Kraemer, J., & Schnurr, D. (2015). Oligopoly competition in continuous time. Available at SSRN 2630664.
  • Lux, E., Adam, M. T. P., Hawlitschek, F., Pfeiffer, J. (2015). Using live biofeedback for decision support: Investigating influences of emotion regulation in financial decision making. ECIS 2015 Proceedings (European Conference on Information Systems), Münster, Germany, 1–12.
  • Niemeyer, C., Wagenknecht, T., Teubner, T., & Weinhardt, C. (2016, January). Participatory Crowdfunding: An approach towards engaging employees and citizens in institutional budgeting decisions. In 2016 49th Hawaii International Conference on System Sciences (HICSS) (pp. 2800-2808). IEEE.
  • Niemeyer, C. ; Wagenknecht, T. ; Weinhardt, C. . Emotional Arousal Effects in Participatory Budgeting Decisions . 2016. Proceedings of the Second Karlsruhe Service Summit Research Workshop, Karlsruhe, 25. - 26. Februar 2016
  • Rouast, P. V., Adam, M. T., Dorner, V., & Lux, E. (2016) Remote Photoplethysmography: Evaluation of Contactless Heart Rate Measurement in an Information Systems Setting.
  • Schmidt, H.-M., Wiens, M., Schultmann, F. (2015). Models for Regionalizing Economic Data and their Applications within the Scope of Forensic Disaster Analyses. Poster session at the European Geosciences Union General Assembly 2015, Vienna.