Marie Fiedler, M.Sc.

Marie Fiedler M. Sc.

Wissenschaftlicher Mitarbeiterin/PhD Studentin

Psychologie Intelligenter Interaktiver Systeme
Julius-Maximilians-Universität Würzburg
Institut für Mensch-Computer-Medien
Universität Würzburg
Emil-Fischer-Straße 50
97074 Würzburg
Deutschland

About me

Studied Psychology (B.Sc.) at the Otto-von-Guericke-University of Magdeburg, where I explored and compared different learning paradigms in a brain-computer interface for my bachelor thesis.

2015-2019 - I studied Human-Computer Interaction (M.Sc.) at the Julius-Maximilians-University of Würzburg. For my master thesis, I investigated the influence of appearance and embodiment of a virtual human on body weight perception in virtual reality.

2019-2022 - Student worker on various projects of the chairs Psychologische Ergonomie and Human-Computer Interaction.

2019-2022 - Since November 2022: Research asisstant at the JMU Würzburg.

Interests

embodied cognition
virtual reality
augmented reality
user experience
human centered design

Publications

2024[ to top ]

Fiedler, Marie Luisa, Erik Wolf, Nina Döllinger, David Mal, Mario Botsch, Marc Erich Latoschik, and Carolin Wienrich. “From Avatars to Agents: Self-Related Cues through Embodiment and Personalization Affect Body Perception in Virtual Reality”. IEEE Transactions on Visualization and Computer Graphics, 2024, 1-11. https://doi.org/10.1109/TVCG.2024.3456211.
- [ Abstract ]
- [ BibTeX ]
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- [ DOI ]
Our work investigates the influence of self-related cues in the design of virtual humans on body perception in virtual reality. In a 2x2 mixed design, 64 participants faced photorealistic virtual humans either as a motion-synchronized embodied avatar or as an autonomous moving agent, appearing subsequently with a personalized and generic texture. Our results unveil that self-related cues through embodiment and personalization yield an individual and complemented increase in participants' sense of embodiment and self-identification towards the virtual human. Different body weight modification and estimation tasks further showed an impact of both factors on participants' body weight perception. Additional analyses revealed that the participant's body mass index predicted body weight estimations in all conditions and that participants' self-esteem and body shape concerns correlated with different body weight perception results. Hence, we have demonstrated the occurrence of double standards through induced self-related cues in virtual human perception, especially through embodiment.

@article{fiedler2024selfcues, abstract = {Our work investigates the influence of self-related cues in the design of virtual humans on body perception in virtual reality. In a 2x2 mixed design, 64 participants faced photorealistic virtual humans either as a motion-synchronized embodied avatar or as an autonomous moving agent, appearing subsequently with a personalized and generic texture. Our results unveil that self-related cues through embodiment and personalization yield an individual and complemented increase in participants' sense of embodiment and self-identification towards the virtual human. Different body weight modification and estimation tasks further showed an impact of both factors on participants' body weight perception. Additional analyses revealed that the participant's body mass index predicted body weight estimations in all conditions and that participants' self-esteem and body shape concerns correlated with different body weight perception results. Hence, we have demonstrated the occurrence of double standards through induced self-related cues in virtual human perception, especially through embodiment.}, author = {Fiedler, Marie Luisa and Wolf, Erik and Döllinger, Nina and Mal, David and Botsch, Mario and Latoschik, Marc Erich and Wienrich, Carolin}, journal = {IEEE Transactions on Visualization and Computer Graphics}, keywords = {mfiedler}, pages = {1-11}, title = {From Avatars to Agents: Self-Related Cues through Embodiment and Personalization Affect Body Perception in Virtual Reality}, year = 2024 }

2023[ to top ]

Maas, Franzisca, Sara Wolf, Michael Weber, Marie Luisa Fiedler, Nils Zottmann, Marlene Lester, Jonathan Hohm, et al. “‘hubbel’: A Hybrid Letterbox That Stimulates Civic Participation Through Local Information Sharing in Neighbourhoods”. In Proceedings of the 2023 ACM Designing Interactive Systems Conference, 1826–1841. DIS ’23. ACM, 2023. https://doi.org/10.1145/3563657.3596116.
- [ BibTeX ]
- [ URL ]
- [ DOI ]
@inproceedings{Maas2023, author = {Maas, Franzisca and Wolf, Sara and Weber, Michael and Fiedler, Marie Luisa and Zottmann, Nils and Lester, Marlene and Hohm, Jonathan and Sessler, Luise and Schmitt, Katja Patricia and Balser, Andreas and Heinisch, Melina Joline and Hofmann, Tabea Carolina and Maier, Simon and Ölschläger, Amanda and Popp, Alisa and Hurtienne, Jörn}, booktitle = {Proceedings of the 2023 ACM Designing Interactive Systems Conference}, keywords = {mfiedler}, pages = {1826–1841}, publisher = {ACM}, series = {DIS ’23}, title = {“hubbel”: A Hybrid Letterbox That Stimulates Civic Participation Through Local Information Sharing in Neighbourhoods}, year = 2023 }
Fiedler, Marie Luisa, Erik Wolf, Nina Döllinger, Mario Botsch, Marc Erich Latoschik, and Carolin Wienrich. “Embodiment and Personalization for Self-Identification With Virtual Humans”. In 2023 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW), 799-800. https://doi.org/10.1109/VRW58643.2023.00242.
- [ Abstract ]
- [ BibTeX ]
- [ URL ]
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Our work investigates the impact of virtual human embodiment and personalization on the sense of embodiment (SoE) and self-identification (SI). We introduce preliminary items to query self-similarity (SS) and self-attribution (SA) with virtual humans as dimensions of SI. In our study, 64 participants successively observed personalized and generic-looking virtual humans, either as embodied avatars in a virtual mirror or as agents while performing tasks. They reported significantly higher SoE and SI when facing personalized virtual humans and significantly higher SoE and SA when facing embodied avatars, indicating that both factors have strong separate and complimentary influence on SoE and SI.

@inproceedings{fiedler2023selfidentification, abstract = {Our work investigates the impact of virtual human embodiment and personalization on the sense of embodiment (SoE) and self-identification (SI). We introduce preliminary items to query self-similarity (SS) and self-attribution (SA) with virtual humans as dimensions of SI. In our study, 64 participants successively observed personalized and generic-looking virtual humans, either as embodied avatars in a virtual mirror or as agents while performing tasks. They reported significantly higher SoE and SI when facing personalized virtual humans and significantly higher SoE and SA when facing embodied avatars, indicating that both factors have strong separate and complimentary influence on SoE and SI.}, author = {Fiedler, Marie Luisa and Wolf, Erik and Döllinger, Nina and Botsch, Mario and Latoschik, Marc Erich and Wienrich, Carolin}, booktitle = {2023 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW)}, keywords = {mfiedler}, pages = {799-800}, title = {Embodiment and Personalization for Self-Identification with Virtual Humans}, year = 2023 }
Fiedler, Marie Luisa, Erik Wolf, Carolin Wienrich, and Marc Erich Latoschik. “Holographic Augmented Reality Mirrors for Daily Self-Reflection on the Own Body Image”. In CHI 2023 WS28 Integrating Individual and Social Contexts into Self-Reflection Technologies Workshop, 1-4. https://downloads.hci.informatik.uni-wuerzburg.de/2023-chi-reflection-workshop.pdf.
- [ Abstract ]
- [ BibTeX ]
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Mirror self-reflection can help us to develop a deeper understanding and appreciation of our body. Due to technological advancements, holographic augmented reality (AR) mirrors can create realistic visualizations of virtual humans that can represent one's appearance in an altered way while remaining in a familiar environment. Further developing those mirrors opens a new field for use in everyday life. In this work, we outline possible future scenarios where AR mirrors can empower individuals to visualize their emotions, thought patterns, and discrepancies related to their physical body and mental body image. Thus, AR mirrors can encourage their self-reflection, promote a positive and healthy relationship with their bodies, or motivate them to take action to improve their well-being.

@inproceedings{fiedler2023holographic, abstract = {Mirror self-reflection can help us to develop a deeper understanding and appreciation of our body. Due to technological advancements, holographic augmented reality (AR) mirrors can create realistic visualizations of virtual humans that can represent one's appearance in an altered way while remaining in a familiar environment. Further developing those mirrors opens a new field for use in everyday life. In this work, we outline possible future scenarios where AR mirrors can empower individuals to visualize their emotions, thought patterns, and discrepancies related to their physical body and mental body image. Thus, AR mirrors can encourage their self-reflection, promote a positive and healthy relationship with their bodies, or motivate them to take action to improve their well-being.}, author = {Fiedler, Marie Luisa and Wolf, Erik and Wienrich, Carolin and Latoschik, Marc Erich}, booktitle = {CHI 2023 WS28 Integrating Individual and Social Contexts into Self-Reflection Technologies Workshop}, keywords = {mfiedler}, pages = {1-4}, title = {Holographic Augmented Reality Mirrors for Daily Self-Reflection on the Own Body Image}, year = 2023 }

2022[ to top ]

Wolf, Erik, Marie Luisa Fiedler, Nina Döllinger, Carolin Wienrich, and Marc Erich Latoschik. “Exploring Presence, Avatar Embodiment, and Body Perception With a Holographic Augmented Reality Mirror”. In 2022 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), 350-59. https://doi.org/10.1109/VR51125.2022.00054.
- [ Abstract ]
- [ BibTeX ]
- [ URL ]
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The embodiment of avatars in virtual reality (VR) is a promising tool for enhancing the user's mental health. A great example is the treatment of body image disturbances, where eliciting a full-body illusion can help identify, visualize, and modulate persisting misperceptions. Augmented reality (AR) could complement recent advances in the field by incorporating real elements, such as the therapist or the user's real body, into therapeutic scenarios. However, research on the use of AR in this context is very sparse. Therefore, we present a holographic AR mirror system based on an optical see-through (OST) device and markerless body tracking, collect valuable qualitative feedback regarding its user experience, and compare quantitative results regarding presence, embodiment, and body weight perception to similar systems using video see-through (VST) AR and VR. For our OST AR system, a total of 27 normal-weight female participants provided predominantly positive feedback on display properties (field of view, luminosity, and transparency of virtual objects), body tracking, and the perception of the avatar’s appearance and movements. In the quantitative comparison to the VST AR and VR systems, participants reported significantly lower feelings of presence, while they estimated the body weight of the generic avatar significantly higher when using our OST AR system. For virtual body ownership and agency, we found only partially significant differences. In summary, our study shows the general applicability of OST AR in the given context offering huge potential in future therapeutic scenarios. However, the comparative evaluation between OST AR, VST AR, and VR also revealed significant differences in relevant measures. Future work is mandatory to corroborate our findings and to classify the significance in a therapeutic context.

@inproceedings{wolf2022holographic, abstract = {The embodiment of avatars in virtual reality (VR) is a promising tool for enhancing the user's mental health. A great example is the treatment of body image disturbances, where eliciting a full-body illusion can help identify, visualize, and modulate persisting misperceptions. Augmented reality (AR) could complement recent advances in the field by incorporating real elements, such as the therapist or the user's real body, into therapeutic scenarios. However, research on the use of AR in this context is very sparse. Therefore, we present a holographic AR mirror system based on an optical see-through (OST) device and markerless body tracking, collect valuable qualitative feedback regarding its user experience, and compare quantitative results regarding presence, embodiment, and body weight perception to similar systems using video see-through (VST) AR and VR. For our OST AR system, a total of 27 normal-weight female participants provided predominantly positive feedback on display properties (field of view, luminosity, and transparency of virtual objects), body tracking, and the perception of the avatar’s appearance and movements. In the quantitative comparison to the VST AR and VR systems, participants reported significantly lower feelings of presence, while they estimated the body weight of the generic avatar significantly higher when using our OST AR system. For virtual body ownership and agency, we found only partially significant differences. In summary, our study shows the general applicability of OST AR in the given context offering huge potential in future therapeutic scenarios. However, the comparative evaluation between OST AR, VST AR, and VR also revealed significant differences in relevant measures. Future work is mandatory to corroborate our findings and to classify the significance in a therapeutic context.}, author = {Wolf, Erik and Fiedler, Marie Luisa and Döllinger, Nina and Wienrich, Carolin and Latoschik, Marc Erich}, booktitle = {2022 IEEE Conference on Virtual Reality and 3D User Interfaces (VR)}, keywords = {mfiedler}, pages = {350-359}, title = {Exploring Presence, Avatar Embodiment, and Body Perception with a Holographic Augmented Reality Mirror}, year = 2022 }

Hubland Nord, Gebäude 50