Explicit and implicit measurement of mind perception in social robots through individual differences modulation

Ürgen, Burcu Ayşen
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Bilkent University
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The attribution of mental states to the object or subject that an individual interacts with according to its appearance or behavior is called mind perception (Gray et al., 2007). Recent research on human-robot interaction has shown that robots can create mind perceptions like other agents under certain conditions. In addition, while the two dimensions of mind perception (Agency and Experience) are mostly controlled using explicit measurement methods in the literature, the use of implicit measurement methods in the measurement of mind perception is still almost nonexistent. In addition to this fundamental gap, studies examining mind perception in robots have investigated how appearance affects mind perception, while the effect of action perception almost again has never been observed. In this context, we investigated how robots affect mind perception by manipulating differences in action and appearance. Methodologically, we conducted our study using both the explicit measurement method and the implicit measurement method due to the gap in the literature. In this study, individual difference measurement was also used to observe the causes of different attributions in mind perception to robots. In the first study, participants (N=102) evaluated how the robots' performing different actions (biological, verbal and nonverbal communicative and neutral) and appearance (humanoid and mechanical) affect mind perception; in the second study, participants (N=185) evaluated the effect of robots' actions and appearances on mind perception in terms of implicit and explicit measurement methods. In addition, 11 individual difference measures were used to observe individual differences that modulate mind perception. Looking at the results, it has been observed in both studies that the action of robots affects mind perception. In the explicit measurement method, neutral behavior was found to create less mind perception than communicative and biological action. In the implicit measurement method, differences in reaction time were observed between communicative actions and biological & neutral actions. Individual differences that modulate the perception of the explicit and implicit mind have been observed. According to this, intentionality of behavior, theory of mind, and perception of loneliness are core modulates for explicit mind perception, while negative mood primarily modulates implicit mind perception. Looking at the results, it was observed that the perception of action had an effect on the mind perception, the implicit and the explicit mind perception showed different patterns from each other, and the individual differences predicted the pattern of implicit and explicit mind perception.

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Mind perception, Human-robot interaction, Action perception, Explicit and implicit measurements, Individual differences
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