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Brain-Computer Interfacing to Virtual Characters, by Prof. Marc Cavazza, University of Greenwich| old_uid | 17846 |
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| title | Brain-Computer Interfacing to Virtual Characters, by Prof. Marc Cavazza, University of Greenwich |
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| start_date | 2019/09/05 |
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| schedule | 18h30 |
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| online | no |
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| summary | Virtual characters have become important components of many interactive systems, in which they have gained user acceptance in view of their ability to support a realistic context for interaction. Various implementations of virtual characters, such as Embodied Conversational Agents (ECA) or full-bodied avatars, can also be made into experimental platforms to study human affective responses in communicative or social situations. In addition, virtual characters can support new user interface paradigms, where they facilitate the elicitation of users’ specific brain signals within a communication situation.
In this talk, I will discuss the Neuroscience of virtual agents from the perspective of Brain-Computer Interfaces (BCI), i.e. the real-time signal acquisition from regions of interest whose activation is influenced by user interaction with a virtual agent. We will discuss prefrontal cortex’s implication in affective and communicative mechanisms, which includes approach (and its underpinning of anger or empathy directed at virtual characters), as well as some aspects of communication alignment. Another region of interest considered will be the amygdala, mainly for its potential in emotional control.
We will consider how to explore communication with virtual agents and develop new interface mechanisms using brain signals and, conversely, we will discuss how virtual agents can support specific neurotechnology endeavours such as Neurofeedback, by creating a more realistic context for interaction. Each of these aspects will be illustrated by fully implemented virtual agents platforms, which have supported experiments with a wide range of input signal modalities and analysis techniques, including fNIRS, fMRI, EEG and iEEG. |
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| responsibles | Bureau |
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