Evaluating gaze behaviors as pre-touch reactions for virtual agents

BackgroundReaction behaviors by human-looking agents to nonverbal communication cues significantly affect how they are perceived as well as how they directly affect interactions. Some studies have evaluated such reactions toward several interactions, although few approached before-touch situations a...

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Main Authors: Dario Alfonso Cuello Mejía, Hidenobu Sumioka, Hiroshi Ishiguro, Masahiro Shiomi
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-03-01
Series:Frontiers in Psychology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpsyg.2023.1129677/full
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author Dario Alfonso Cuello Mejía
Dario Alfonso Cuello Mejía
Hidenobu Sumioka
Hiroshi Ishiguro
Masahiro Shiomi
author_facet Dario Alfonso Cuello Mejía
Dario Alfonso Cuello Mejía
Hidenobu Sumioka
Hiroshi Ishiguro
Masahiro Shiomi
author_sort Dario Alfonso Cuello Mejía
collection DOAJ
description BackgroundReaction behaviors by human-looking agents to nonverbal communication cues significantly affect how they are perceived as well as how they directly affect interactions. Some studies have evaluated such reactions toward several interactions, although few approached before-touch situations and how the agent’s reaction is perceived. Specifically, it has not been considered how pre-touch reactions impact the interaction, the influence of gaze behavior in a before-touch situation context and how it can condition the participant’s perception and preferences in the interaction. The present study investigated the factors that define pre-touch reactions in a humanoid avatar in a virtual reality environment and how they influence people’s perceptions of the avatars.MethodsWe performed two experiments to assess the differences between approaches from inside and outside the field of view (FoV) and implemented four different gaze behaviors: face-looking, hand-looking, face-then-hand looking and hand-then-face looking behaviors. We also evaluated the participants’ preferences based on the perceived human-likeness, naturalness, and likeability. In Experiment 1, we evaluated the number of steps in gaze behavior, the order of the gaze-steps and the gender; Experiment 2 evaluated the number and order of the gaze-steps.ResultsA two-step gaze behavior was perceived as more human and more natural from both inside and outside the field of view and that a face-first looking behavior when defining only a one-step gaze movement was preferable to hand-first looking behavior from inside the field of view. Regarding the location from where the approach was performed, our results show that a relatively complex gaze movement, including a face-looking behavior, is fundamental for improving the perceptions of agents in before-touch situations.DiscussionThe inclusion of gaze behavior as part of a possible touch interaction is helpful for developing more responsive avatars and gives another communication channel for increasing the immersion and enhance the experience in Virtual Reality environments, extending the frontiers of haptic interaction and complementing the already studied nonverbal communication cues.
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spelling doaj.art-b65e18c401f84f02b7dc584bc111e5cc2023-03-06T12:58:09ZengFrontiers Media S.A.Frontiers in Psychology1664-10782023-03-011410.3389/fpsyg.2023.11296771129677Evaluating gaze behaviors as pre-touch reactions for virtual agentsDario Alfonso Cuello Mejía0Dario Alfonso Cuello Mejía1Hidenobu Sumioka2Hiroshi Ishiguro3Masahiro Shiomi4Interaction Science Laboratories, ATR, Kyoto, JapanIntelligent Robotics Laboratory, Department of Systems Innovation, Graduate School of Engineer Science, Osaka University, Suita, Osaka, JapanHiroshi Ishiguro Laboratories, ATR, Kyoto, JapanIntelligent Robotics Laboratory, Department of Systems Innovation, Graduate School of Engineer Science, Osaka University, Suita, Osaka, JapanInteraction Science Laboratories, ATR, Kyoto, JapanBackgroundReaction behaviors by human-looking agents to nonverbal communication cues significantly affect how they are perceived as well as how they directly affect interactions. Some studies have evaluated such reactions toward several interactions, although few approached before-touch situations and how the agent’s reaction is perceived. Specifically, it has not been considered how pre-touch reactions impact the interaction, the influence of gaze behavior in a before-touch situation context and how it can condition the participant’s perception and preferences in the interaction. The present study investigated the factors that define pre-touch reactions in a humanoid avatar in a virtual reality environment and how they influence people’s perceptions of the avatars.MethodsWe performed two experiments to assess the differences between approaches from inside and outside the field of view (FoV) and implemented four different gaze behaviors: face-looking, hand-looking, face-then-hand looking and hand-then-face looking behaviors. We also evaluated the participants’ preferences based on the perceived human-likeness, naturalness, and likeability. In Experiment 1, we evaluated the number of steps in gaze behavior, the order of the gaze-steps and the gender; Experiment 2 evaluated the number and order of the gaze-steps.ResultsA two-step gaze behavior was perceived as more human and more natural from both inside and outside the field of view and that a face-first looking behavior when defining only a one-step gaze movement was preferable to hand-first looking behavior from inside the field of view. Regarding the location from where the approach was performed, our results show that a relatively complex gaze movement, including a face-looking behavior, is fundamental for improving the perceptions of agents in before-touch situations.DiscussionThe inclusion of gaze behavior as part of a possible touch interaction is helpful for developing more responsive avatars and gives another communication channel for increasing the immersion and enhance the experience in Virtual Reality environments, extending the frontiers of haptic interaction and complementing the already studied nonverbal communication cues.https://www.frontiersin.org/articles/10.3389/fpsyg.2023.1129677/fullvirtual realitygaze behaviorpre-touch behaviorcomputer-human interactionvirtual human
spellingShingle Dario Alfonso Cuello Mejía
Dario Alfonso Cuello Mejía
Hidenobu Sumioka
Hiroshi Ishiguro
Masahiro Shiomi
Evaluating gaze behaviors as pre-touch reactions for virtual agents
Frontiers in Psychology
virtual reality
gaze behavior
pre-touch behavior
computer-human interaction
virtual human
title Evaluating gaze behaviors as pre-touch reactions for virtual agents
title_full Evaluating gaze behaviors as pre-touch reactions for virtual agents
title_fullStr Evaluating gaze behaviors as pre-touch reactions for virtual agents
title_full_unstemmed Evaluating gaze behaviors as pre-touch reactions for virtual agents
title_short Evaluating gaze behaviors as pre-touch reactions for virtual agents
title_sort evaluating gaze behaviors as pre touch reactions for virtual agents
topic virtual reality
gaze behavior
pre-touch behavior
computer-human interaction
virtual human
url https://www.frontiersin.org/articles/10.3389/fpsyg.2023.1129677/full
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