Small Talk with a Robot Can Help

The paper „Small Talk with a Robot Reduces Stress and Improves Mood“ by Katharina Kühne, Antonia L. Z. Klöffel, Oliver Bendel, and Martin H. Fischer has been accepted for presentation at the ICSR 2025, which will take place in Naples from September 10 to 12, 2025. Previous research has shown that social support reduces stress and improves mood. This study tested whether small talk with a social robot could be helpful. After performing a stressful task, 98 participants either chatted with a NAO robot, listened to the robot tell a neutral story, or did not interact with the robot. Both robot interactions reduced stress, particularly small talk, which also boosted positive mood. The effects were stronger in those with high acute stress. Positive affect played a key role in stress reduction, suggesting that robot-mediated small talk may be a useful tool for providing emotional support. Dr. Katharina Kühne and Prof. Dr. Martin H. Fischer are researchers at the University of Potsdam. Antonia L. Z. Klöffel assists Katharina Kühne as a junior scientist. Martin Fischer is the head of the Potsdam Embodied Cognition Group (PECoG). Prof. Dr. Oliver Bendel is a PECoG associated researcher. Further information about the conference is available at icsr2025.eu.

Fig.: Small talk without a robot

The Right Distance to a Robot

The paper „Robots at arm’s length: Unveiling the dynamics of interpersonal distance preferences in human-robot interactions“ by Katharina Kühne, Laura M. Zimmer, Melina Jeglinski-Mende, Oliver Bendel, Yuefang Zhou, and Martin H. Fischer was published in February 2025 in the proceedings volume „Social Robots with AI: Prospects, Risks, and Responsible Methods“ … From the abstract: „In social interactions, interpersonal distance is a vital factor influencing relationships, providing protection, and regulating arousal. Despite the intuitive nature of adopting specific distances, little is known about comfortable interpersonal distances with social robots. In our online study with 66 participants using a Go/No-Go task, we investigated perceptions of individuals standing face-to-face with a robot at different distances. In line with the negativity bias hypothesis, participants exhibited a preference for greater distances, as reflected in longer reaction times. Furthermore, the human-likeness of the robots moderated the link between distance and arousal. Finally, the most human-like robot was less liked and evoked higher arousal. These findings have implications for designing social robots and optimizing interactions, particularly in educational or medical contexts.“ The proceedings volume comprises the papers presented at Robophilosophy 2024 in Aarhus. Leading philosophers, computer scientists, and roboticists met there in August. Like the ICSR, the conference is one of the world’s leading conferences on social robotics.

Fig.: What is the right distance to a robot? (Bild: DALL-E 3)

Robots and Pets

Katharina Kühne and Melinda A. Jeglinski-Mende (University of Potsdam) together with Oliver Bendel (School of Business FHNW) have written an extended abstract for Robophilosophy 2022 entitled „Tamagotchi on our Couch“. The corresponding poster was presented by Katharina Kühne on on August 16, 2022, the first day of the conference. The poster is made available here. From the abstract: „Although social robots increasingly enter our lives, it is not clear how they are perceived. Previous research indicates that there is a tendency to anthropomorphize social robots, at least in the Western culture. One of the most promising roles of robots in our society is companionship. Pets also fulfill this role, which gives their owners health and wellbeing benefits. In our study, we investigated if social robots can implicitly and explicitly be perceived as pets. In an online experiment, we measured implicit associations between pets and robots using pictures of robots and devices, as well as attributes denoting pet and non-pet features, in a Go/No-Go Association Task (GNAT). Further, we asked our participants to explicitly evaluate to what extent they perceive robots as pets and if robots could replace a real pet. Our findings show that implicitly, but not explicitly, social robots are perceived as pets.“ (Abstract) The poster is available here.

Fig.: Pet without robot