Evaluating the effects of active social touch and robot expressiveness on user attitudes and behaviour in human–robot interaction

Abstract Touch plays a crucial role in human social interaction and emotional communication. Social touch refers to touching others in social contexts, serving purposes like greetings, affection, persuasion, and emotional regulation. Social robots are autonomous agents designed to interact with huma...

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Main Authors: Juan Jose Gamboa-Montero, Sara Carrasco-Martinez, Enrique Fernandez-Rodicio, Fernando Alonso-Martin, Jose Carlos Castillo
Format: Article
Language:English
Published: Nature Portfolio 2025-05-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-025-01490-5
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author Juan Jose Gamboa-Montero
Sara Carrasco-Martinez
Enrique Fernandez-Rodicio
Fernando Alonso-Martin
Jose Carlos Castillo
author_facet Juan Jose Gamboa-Montero
Sara Carrasco-Martinez
Enrique Fernandez-Rodicio
Fernando Alonso-Martin
Jose Carlos Castillo
author_sort Juan Jose Gamboa-Montero
collection DOAJ
description Abstract Touch plays a crucial role in human social interaction and emotional communication. Social touch refers to touching others in social contexts, serving purposes like greetings, affection, persuasion, and emotional regulation. Social robots are autonomous agents designed to interact with humans according to a social model these users apply. While the literature on human–robot touch interaction has focused on the effects of touch from the perspective of the subject being touched by a machine, the implications in the attitude and the behaviour of users when actively touching a robot still need to be explored. This work aims to determine whether actively touching a robot can enhance human–robot interaction and the role of the robot’s expressiveness while being touched. We designed a human–robot touch interaction game involving memorising and replicating a touch sequence. We used a questionnaire to measure engagement, intrinsic motivation, and fun, three concepts connected to the user’s behaviour while interacting with the robot. Our study shows tactile interaction with the robot improves user engagement and fun. The study also revealed that the robot’s expressiveness also impacts the users’ fun during the interaction. Lastly, results showed the impact of the touch interaction on the user is independent of the robot’s expressiveness and interactivity.
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issn 2045-2322
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spelling doaj-art-56df895567ba4747a084b072e3bb28072025-08-20T01:59:57ZengNature PortfolioScientific Reports2045-23222025-05-0115111310.1038/s41598-025-01490-5Evaluating the effects of active social touch and robot expressiveness on user attitudes and behaviour in human–robot interactionJuan Jose Gamboa-Montero0Sara Carrasco-Martinez1Enrique Fernandez-Rodicio2Fernando Alonso-Martin3Jose Carlos Castillo4RoboticsLab, Department of Systems Engineering and Automation, Universidad Carlos III de MadridRoboticsLab, Department of Systems Engineering and Automation, Universidad Carlos III de MadridRoboticsLab, Department of Systems Engineering and Automation, Universidad Carlos III de MadridRoboticsLab, Department of Systems Engineering and Automation, Universidad Carlos III de MadridRoboticsLab, Department of Systems Engineering and Automation, Universidad Carlos III de MadridAbstract Touch plays a crucial role in human social interaction and emotional communication. Social touch refers to touching others in social contexts, serving purposes like greetings, affection, persuasion, and emotional regulation. Social robots are autonomous agents designed to interact with humans according to a social model these users apply. While the literature on human–robot touch interaction has focused on the effects of touch from the perspective of the subject being touched by a machine, the implications in the attitude and the behaviour of users when actively touching a robot still need to be explored. This work aims to determine whether actively touching a robot can enhance human–robot interaction and the role of the robot’s expressiveness while being touched. We designed a human–robot touch interaction game involving memorising and replicating a touch sequence. We used a questionnaire to measure engagement, intrinsic motivation, and fun, three concepts connected to the user’s behaviour while interacting with the robot. Our study shows tactile interaction with the robot improves user engagement and fun. The study also revealed that the robot’s expressiveness also impacts the users’ fun during the interaction. Lastly, results showed the impact of the touch interaction on the user is independent of the robot’s expressiveness and interactivity.https://doi.org/10.1038/s41598-025-01490-5Active social touchHuman–robot interactionSmart tactile systemsRobot expressivenessHuman attitudes and behaviour
spellingShingle Juan Jose Gamboa-Montero
Sara Carrasco-Martinez
Enrique Fernandez-Rodicio
Fernando Alonso-Martin
Jose Carlos Castillo
Evaluating the effects of active social touch and robot expressiveness on user attitudes and behaviour in human–robot interaction
Scientific Reports
Active social touch
Human–robot interaction
Smart tactile systems
Robot expressiveness
Human attitudes and behaviour
title Evaluating the effects of active social touch and robot expressiveness on user attitudes and behaviour in human–robot interaction
title_full Evaluating the effects of active social touch and robot expressiveness on user attitudes and behaviour in human–robot interaction
title_fullStr Evaluating the effects of active social touch and robot expressiveness on user attitudes and behaviour in human–robot interaction
title_full_unstemmed Evaluating the effects of active social touch and robot expressiveness on user attitudes and behaviour in human–robot interaction
title_short Evaluating the effects of active social touch and robot expressiveness on user attitudes and behaviour in human–robot interaction
title_sort evaluating the effects of active social touch and robot expressiveness on user attitudes and behaviour in human robot interaction
topic Active social touch
Human–robot interaction
Smart tactile systems
Robot expressiveness
Human attitudes and behaviour
url https://doi.org/10.1038/s41598-025-01490-5
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