Edible agent used in this study. The edible agent was made from edible materials and designed to sway from side to side in synchrony with vocalizations. (IMAGE)

The University of Electro-Communications

Edible agent used in this study. The edible agent was made from edible materials and designed to sway from side to side in synchrony with vocalizations.

Caption

Edible agent used in this study. The edible agent was made from edible materials and designed to sway from side to side in synchrony with vocalizations.

Credit

Yoshihiro Nakata

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