The Impact of an Embodied Agent’s Emotional Expressions Over Multiple Interactions

Creed, Chris and Beale, Russell and Cowan, Benjamin (2015) The Impact of an Embodied Agent’s Emotional Expressions Over Multiple Interactions. Interacting with Computers, 27 (2). p. 172. ISSN 0953-5438

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Abstract

The impact of simulated embodied agent emotion has been explored in short-term studies, but no work to date has examined its impact in longer interactions that involve multiple interactions with agents. We present an embodied agent (Rachael) that simulates a health professional and attempts to help people improve their fruit and vegetable consumption. Emotional and unemotional versions of
the agent were developed to examine how user perceptions of the agent changed over an intervention
period of 49 days and in turn how this influenced fruit and vegetable consumption. Results found that whilst participants consumed more daily portions of fruit and vegetables over the intervention period and reduced their consumption gains post-intervention, there was no significant difference in consumption gains over time between those who interacted with the emotional or unemotional agents. Qualitative feedback, however, highlighted a strong preference for the emotional agent. A novelty effect was also observed where the agents were perceived more positively initially and less so over
time.

Item Type: Article
Uncontrolled Keywords: embodied conversational agents; emotional avatars; affective computing; virtual agents; virtual humans; interactive character
Subjects: G400 Computer Science
Divisions: Faculty of Computing, Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Computing and Digital Technology
Faculty of Computing, Engineering and the Built Environment > School of Computing and Digital Technology > Cyber Security
UoA Collections > UoA11: Computer Science and Informatics
Depositing User: $ Ian McDonald
Date Deposited: 24 Jan 2017 13:36
Last Modified: 10 Jul 2017 08:36
URI: http://www.open-access.bcu.ac.uk/id/eprint/3820

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