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TU Berlin

Inhalt des Dokuments

Patrick Ehrenbrink


Research Field


User Experience

Research Topics

Evaluation of Context-Aware Interactive Systems

User Traits, especially Psychological Reactance

Intelligent Personal Assistants, Human-Agent Interaction, Social Robots, Embodied Conversational Agents



Patrick Ehrenbrink studied Cognitive Science (B.Sc.) at Osnabrück University and Human Factors (M.Sc.) at TU Berlin. Since 2013, he is working as a researcher at the Quality and Usability Lab.


Current Project

Social Psychological Aspects of Smart Homes


Past Projects

EIT ICT Education Research Program 2014


Universal Home Control Interfaces@ConnectedUsability



Medieninformatik Einführung Übung (German, 2015 - present)

MOOC@TU9 (German, 2014)

Multimodal Interaction Practice (English, 2013 - present)


Teaching Projects

MOOC Multimodal Interaction
Explaining the optical system of the human eye.

E-Learning Project (PDF, 792,5 KB) 
Evaluation and analysis of methods to assess study success.

E-Learning Project (PDF, 2,5 MB) 
Comparison of different teaching materials on their effect on study success.

E-Learning Project (PDF, 595,2 KB) 
Implementation of  an adaptive tutoring system.

Smart Picture Frame A (PDF, 2,1 MB)
Benchmarking of face detection algorythms

Smart Picture Frame B (PDF, 2,2 MB)
Benchmarking of face recognition algorythms

Smart Picture Frame C (PDF, 14,6 MB)
Implementation of face detection and recognition into a prototypical smartphone application that can recognize faces and show  photos of the same person from a database.

Intelligent Personal Assistant Paradigma 
Creating a paradigma to compare the three big IPAs Siri, Cortana and Google Now.

Quality and Usability Lab
Deutsche Telekom Laboratories
TU Berlin
Ernst-Reuter-Platz 7
D-10587 Berlin, Germany

Tel: +4930 8353 54211


The Benefits of Considering Psychological Reactance as Users' Personality Trait in HCI esearch - Profiling Users with Hong's Psychological Reactance Scale

Ehrenbrink, Patrick

Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2017). SCITEPRESS, 158–164. 2017

Download Bibtex Eintrag

Comparing Priming Effects of Visual and Textual Task Representations - Texts can Influence Users' Utterances

Ehrenbrink, Patrick and Hillmann, Stefan

International Workshop on Spoken Dialogue Systems. Springer International Publishing, 1–10. 2017

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Persuasive Alexa: Influence of Agency on Reactance

Ehrenbrink, Patrick and Ibragimova, Elvira

Second workshop on Persuasive Technology and Society 2017

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Google Now is for the Extraverted, Cortana for the Introverted: Investigating the Influence of Personality on IPA Preference.

Ehrenbrink, Patrick and Osman, Seif and Möller, Sebastian

Proceedings of the 29th Australian Conference on Human-Computer Interaction. ACM, 1–9. 2017

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Causes of Psychological Reactance in Human-Computer Interaction - A Literature Review and Survey

Ehrenbrink, Patrick and Prezenski, Sabine

Proceedings of the 35th European Conference on Cognitive Ergonomics (ECCE). ACM, 1–8. 2017

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Implications of Different Feedback Types on Error Perception and Psychological Reactance

Ehrenbrink, Patrick and Guang Gong, Xin and Möller, Sebastian

OzCHI '16:The 28th Australian Conference on Human-Computer Interaction. ACM, 1–5. 2016

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Psychological Reactance in HCI - A Method Towards Improving Acceptance of Devices and Services

Ehrenbrink, Patrick and Hillmann, Stefan and Weiss, Benjamin and Möller, Sebastian

OzCHI '16:The 28th Australian Conference on Human-Computer Interaction. ACM, 1–5. 2016

Download Bibtex Eintrag

New ITG Guideline for the Usability Evaluation of Smart Home Environments

Möller, Sebastian and Engelbrecht, Klaus-Peter and Hillmann, Stefan and Ehrenbrink, Patrick

11. ITG Fachtagung Sprachkommunikation. VDE-Verlag. 2014

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Investigating the social facilitation effect in human-robot-interaction

Wechsung, Ina and Ehrenbrink, Patrick and Schleicher, Robert and Möller, Sebastian

Natural Interaction with Robots, Knowbots and Smartphones Putting Spoken Dialog Systems into Practice. Springer, 167–177. 2014

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Messung und Bewertung der Usability in Smart Home-Umgebungen

Engelbrecht, Klaus-Peter and Ehrenbrink, Patrick and Hillmann, Stefan and Möller, Sebastian

Proc. of VDE Kongress 2014. Smart Cities. Intelligente Lösungen für das Leben in der Zukunft. VDE-Verlag, 140–145. 2014

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