When service robots look at themselves in the mirror: An examination of the effects of perceptions of robotic self-recognition

Service robots sharing the same environments with humans are typically designed to have various humanlike features, because perceptions of robots as humanlike make them more acceptable to human users. This study examines one human characteristic that has hitherto been unexplored in studies of humans' perceptions of robots: a self-recognition ability. For (adult) humans, self-recognition is typically uncomplicated and effortless, yet it is of fundamental importance for social interaction, and therefore it was assumed that perceptions of robotic self-recognition abilities would be used for inferences about other robot attributes. A between-subjects experiment, in which a domestic service robot's ability to recognize itself was manipulated (low vs. high), showed that high self-recognition boosted perceptions of the quality of the service delivered by the robot, and that this effect was mediated by perceptions of the robot as having a capacity for learning and having theory of mind.     

Service robots with (perceived) theory of mind: An examination of humans’ reactions

In the near future, it is expected that we humans will receive an increasing part of various services from robots. Many observers, and several existing studies, indicate that we react more positively if our robots have humanlike attributes and capabilities, and the present study examines one such capability: theory of mind. It has to do with the ability to impute mental states to others, which is essential for human-to-human interaction (including interactions in service settings). More specifically, the present study examines the effects of perceptions of service robots' theory of mind capabilities in human-to-robot interactions when the main downstream variable is perceived service quality. Several mediators are also examined. To this end, two empirical studies comprising human-to-robot interactions in a domestic setting were conducted. Both studies indicate that a service robot with more as opposed to less perceived theory of mind enhances perceived service quality, and that this effect is mediated by perceived humanness and perceived usefulness in relation to the robot. It may be argued that a robot's theory of mind capability can also be seen as creepy, which may reduce perceived service quality, because a competent mind reader can create serious harm to others. In the present study, however, robotic theory of mind capabilities did not influence creepiness perceptions.