Small Talk with a Robot Reduces Stress and Improves Mood

The article „Small Talk with a Robot Reduces Stress and Improves Mood“ by Katharina Kühne, Antonia L. Z. Klöffel, Oliver Bendel, and Martin H. Fischer was published on December 23, 2025. It is part of the volume „Social Robotics + AI: 17th International Conference, ICSR+AI 2025, Naples, Italy, September 10–12, 2025, Proceedings, Part III.“ From the abstract: „Research has demonstrated that social support is crucial in mitigating stress and enhancing mood. Not only do long-term, meaningful relationships contribute to well-being, but everyday social interactions, such as small talk, also offer psychological benefits. As social robots increasingly become more integrated into daily life, they present a potential avenue for stress interventions. In our online study, 98 participants underwent a stress induction using the Stroop task and were then assigned to one of three conditions: engaging in scripted small talk with a simulated NAO robot online, listening to a neutral story told by the same NAO robot, or no intervention (control condition). Results indicate that both interventions effectively reduced stress, with a tendency towards a stronger effect in the Small talk condition. Small talk not only helped maintain positive affect but also reduced negative affect. Notably, the benefits were more pronounced among individuals experiencing higher acute stress following the stress induction, but were less evident in those with chronically elevated stress levels. Furthermore, the effect of the intervention on stress reduction was mediated by changes in positive affect. These findings suggest that small talk with a social robot may serve as a promising tool for stress reduction and affect regulation.“ The first author, a researcher from the University of Potsdam, presented the paper on September 12, 2025, in Naples. It can be downloaded from link.springer.com/chapter/10.1007/978-981-95-2398-6_1.

Fig.: Katharina Kühne together with Tamara Siegmann

Small Talk with a Robot Reduces Stress

At the last day of the ICSR on September 12, 2025, Katharina Kühne presented her full paper titled „Small Talk with a Robot Reduces Stress and Improves Mood“ (written together with Antonia L. Z. Klöffel, Oliver Bendel, and Martin H. Fischer). 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 participants 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 an associated researcher with PECoG.

Fig.: The first slide of the talk

Small Talk With a Robot

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 with a robot