TU Berlin

Mensch-Maschine-SystemeSarah-Christin Freytag


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M.Sc. Sarah-Christin Freytag


Scientific Employee


Marchstr. 23

10587 Berlin

Room: MAR 3.022


Telephone: +49 (0)30 314 - 79 522

Telefax:     +49 (0)30 314 - 72 581


Consultation hours: on appointment

Duties and Responsibilities

Scientific employee in research and teaching.



Each term: PJ (Project) Interdiszplinäre Projektarbeit in der Lehrveranstaltung Systemtechnik.

Summer term:SE (Course) Human Machine Systems 

Winter term:SE (Course) Blickbewegung in Mensch-Maschine Systemen (Eye Tracking in Human-Machine Systems)



Visiting Researcher at IDC Herzliya, IL, Virtual Reality Lab for Conflict Research (VR-CORE)

Courses: Winter term 20/21 + Summer term 21 (with Dr. Béatrice Hasler): Group Guided Research Project (IDC Herzliya)


Research Interest

Applications of Eye Tracking for User State Detection and Adaptive Environments in Virtual Reality (PhD topic)

Smooth Pursuit in VR

Empathy & Emotion in VR





Best Paper Award (Short Papers) Symposium on Eye Tracking Research and Applications (ETRA 2020)

Clara von Simson Preis 2017 (3rd place)



Journal Articles

  • Spangenberger, Pia; Geiger, Sonja & Freytag, Sarah-Christin (2022). Becoming nature: effects of embodying a tree in immersive virtual reality on nature relatedness. Nature Scientific Reports. doi.org/10.1038/s41598-022-05184-0 [Link]

Conference Proceedings

  • Sarah-Christin Freytag. 2020. Sweet Pursuit: User Acceptance and Performance of a Smooth Pursuit controlled Candy Dispensing Machine in a Public Setting. In Symposium on Eye Tracking Research and Applications (ETRA ’20 Short Papers), June 2–5, 2020, Stuttgart, Germany. ACM, New York, NY, USA, 5 pages. doi.org/10.1145/3379156.3391356 [Best Paper Award, categorie short papers]
  • Spangenberger, P., Freytag, S.C. (2020) Career Choice of Adolescents: Can occupational VR 360-degree Videos Facilitate Job Interest? In Proceedings of the 12th International Conference on Computer Supported Education (CSEDU 2020) At: Online Streaming Volume: 1, pages 552-558, ISBN: 978-989-758-417-6
  • Zechner, R., Freytag, Sc. (2019). 3D Smooth Pursuit: Comparison of two detection algorithms adapted for three-dimensional virtual environments. 20th European Conference on Eye Movements, Aug. 18-22, Alicante, Spain.
  • Freytag, S.C., Wienrich, C. (2017). Evaluation of a virtual gaming environment designed to access emotional reactions while playing. 9th International Conference on Virtual Worlds and Games for Serious Applications (VS-Games), Athens, Greece. pp. 145-148. doi:10.1109/VS-GAMES.2017.8056585
  • Freytag, S.C. (2017). Applications of Eye-Tracking for user state recognition and  adaptive content manipulation in Virtual Environments (Dissertational Abstract). Proceedings of the 3rd Berlin Summer School Human Factors 2017. ISSN: 1439-7854 PDF
  • Krol, L.R., Freytag, S.C., Zander, T.O. (2017). Meyendtris: a hands-free, multimodal tetris clone using eye tracking and passive BCI for intuitive neuroadaptive gaming.ICMI 2017 Proceedings of the 19th ACM International Conference on Multimodal Interaction. Glasgow, UK - Nov 13 - 17, 2017. pp. 433-437. doi:10.1145/3136755.3136805 PDF
    Video demonstration
  • Freytag, Sc., Ruff, S., & Venjakob, A.C. (2017). Applicability of smooth-pursuit based gaze interaction for older users. Journal of Eye Movement Research. Conference abstracts ECEM 2017 (PDF.).
  • Krol, L.R., Freytag, S.C., Fleck, M., Gramann, K., & Zander, T.O. (2016). A Task-Independent Workload Classifier for Neuroadaptive Technology: Preliminary Data. IEEE International Conference on Systems, Man and Cybernetics. Budapest, Hungary, Oct. 9-12, 2016. pp. 003171-003174. doi: 10.1109/SMC.2016.7844722
  • Schmuntzsch, U. & Freytag, S.C. (2013). HLB und Web 2.0 – Anforderungen und Konzept für eine Expertenplattform. In E. Brandenburg, L. Doria, A. Gross, T. Günzler, H. Smieszek (eds.), Grundlagen und Anwendungen der Mensch-Maschine Interaktion, Tagungsband 10. Berliner Werkstatt Mensch-Maschine-Systeme, 7.-10. Oktober 2013, (pp. 245–251). Berlin: Universitätsverlag der TU Berlin.


  • Published Reviewer für Huang, C.-S., Lin, C.-L. et al. (2014). Knowledge-based identification of sleep stages based on two forehead electroencephalogramm channels. Frontiers in Neuroscience. doi: 10.3389/fnins.2014.00263


Public relations / popular science

With U. Schmuntzsch: Radio broadcast „Arbeitsschutz durch elektronische Armmanschette“, inforadio.de, 21.05.2014, Leonardo Wdr5, 23.07.2014

Personal Blog focused on human-factors/hmi centered topics (popular science): http://www.humanfactorish.wordpress.com


Former courses:

VL (Lecture) Einführung in die Programmierung (Introduction into programming) für Psychologen und Psychologinnen (WiSe).

PR (Project) Ingenieurwissenschaftliches Projekt für Psychologen und Psychologinnen (Roboter-Wettbewerb, WiSe)

SE (Course) Experimental Excercise HMS


Former responsibilities

Degree program counseling (03/2016 - 10/2018)

Member (representative of the scientific employees) of the Institute Council (Psychology and Ergonomics) April 2017 - Mar 2019


Former Projects

Scientific Employee at project "SmoothGO", funded by the BMBF (03/2016 - 09/2016). Tasks: Development and implementation of a smooth-pursuit based gaze controlled GUI


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