Nonverbal dating behaviors
For our study, we selected gaze and head nodding behaviours (mutual gaze convergence and head nodding synchrony) as the main focuses in this investigation as these nonverbal behaviours are claimed to be effective means to indicate the success and involvement with interactional partner.
Head nodding behaviour is also asserted to be one of obvious and prominent nonverbal behaviours that the interactional partner can easily perceive, representing attentiveness, understanding and acceptance to the interactional partner.
In human-human interaction, the previous studies revealed that personality compatibility can enhance, for instance, interaction quality in doctor-patient relationship.
These previous studies in human-human interaction provided evidences suggesting that human’s personality should be taken into the account for investigation in human-robot interaction as well in order to increase likability toward robots.
However, it is still unclear whether specific means and strategy of robot’s nonverbal behaviours enhances likability from human with different personality traits and whether there is a relationship between robot’s nonverbal behaviours and human’s likability based on human’s personality.
In this study, we investigated and focused on the interaction via gaze and head nodding behaviours (mutual gaze convergence and head nodding synchrony) between introvert/extravert participants and robot in two communication strategies (Backchanneling and Turn-taking).
Firstly, does specific means and strategy of robot’s nonverbal behaviour influences and enhances likability from human with different personality traits (Introvert and Extravert)?Our findings reveal that the introvert participants are positively affected by backchanneling in robot’s head nodding behaviour, which results in substantial head nodding synchrony whereas the extravert participants are positively influenced by turn-taking in gaze behaviour, which leads to significant mutual gaze convergence.This study demonstrates that there is a relationship between robot’s nonverbal behaviour and human’s likability based on human’s personality.Furthermore, previous studies also found that there is a relationship between personality and bodily communication in human-human interaction and it is evidenced in their nonverbal behaviours.These previous studies provided evidences showing that nonverbal behaviour compatibility is surely a subpart of personality compatibility and these compatibilities help facilitating communication in human-human interaction.
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At current state, although robotics technology has been immensely developed, the uncertainty to completely engage in human-robot interaction is still growing among people.