TY - JOUR
T1 - Automatic imitation of the arm kinematic profile in interacting partners
AU - D’Ausilio, Alessandro
AU - Badino, Leonardo
AU - Cipresso, Pietro
AU - Chirico, Alice
AU - Ferrari, Elisabetta
AU - Riva, Giuseppe
AU - Gaggioli, Andrea
PY - 2015
Y1 - 2015
N2 - Cognitive neuroscience, traditionally focused on individual brains, is just beginning to investigate social cognition through realistic interpersonal interaction. However, quantitative investigation of the dynamical sensorimotor communication among interacting individuals in goal-directed ecological tasks is particularly challenging. Here, we recorded upper-body motion capture of 23 dyads, alternating their leader/follower role, in a tower-building task. Either a strategy of joining efforts or a strategy of independent action could in principle be used. We found that arm reach velocity profiles of participants tended to converge across trials. Automatic imitation of low-level motor control parameters demonstrates that the task is achieved through continuous action coordination as opposed to independent action planning. Moreover, the leader produced more consistent and predictable velocity profiles, suggesting an implicit strategy of signaling to the follower. This study serves as a validation of our joint goal-directed non-verbal task for future applications. In fact, the quantification of human-to-human continuous sensorimotor interaction, in a way that can be predicted and controlled, is probably one of the greatest challenges for the future of human-robot interaction.
AB - Cognitive neuroscience, traditionally focused on individual brains, is just beginning to investigate social cognition through realistic interpersonal interaction. However, quantitative investigation of the dynamical sensorimotor communication among interacting individuals in goal-directed ecological tasks is particularly challenging. Here, we recorded upper-body motion capture of 23 dyads, alternating their leader/follower role, in a tower-building task. Either a strategy of joining efforts or a strategy of independent action could in principle be used. We found that arm reach velocity profiles of participants tended to converge across trials. Automatic imitation of low-level motor control parameters demonstrates that the task is achieved through continuous action coordination as opposed to independent action planning. Moreover, the leader produced more consistent and predictable velocity profiles, suggesting an implicit strategy of signaling to the follower. This study serves as a validation of our joint goal-directed non-verbal task for future applications. In fact, the quantification of human-to-human continuous sensorimotor interaction, in a way that can be predicted and controlled, is probably one of the greatest challenges for the future of human-robot interaction.
KW - automatic imitation
KW - joint action
KW - kinematic analysis
KW - social neuroscience
KW - automatic imitation
KW - joint action
KW - kinematic analysis
KW - social neuroscience
UR - http://hdl.handle.net/10807/68910
UR - http://link.springer.com/article/10.1007%2fs10339-015-0699-4
U2 - 10.1007/s10339-015-0699-4
DO - 10.1007/s10339-015-0699-4
M3 - Article
SN - 1612-4782
VL - 16
SP - 197
EP - 201
JO - Cognitive Processing
JF - Cognitive Processing
ER -