国际最新研究：机器人“打哈欠” 黑猩猩被传染

Core Findings - The study published in the journal "Scientific Reports" indicates that chimpanzees can be "infected" by yawns from a robot mimicking human facial expressions, suggesting that yawning may serve as a rest signal rather than just an automatic response [1][4]. Research Methodology - The research involved 14 adult chimpanzees aged between 10 to 33 years, who were tested with a robot head capable of mimicking facial expressions, including yawning. The robot had 33 rotating motors to simulate muscle movements for yawning and other expressions, with each expression lasting 10 seconds [2][3]. Results - Out of the 14 chimpanzees, 8 (57.1%) exhibited contagious yawning in response to the robot's yawns, and the same number also lay down after yawning, with some preparing a bed before lying down [4]. Implications - This study may represent the first demonstration of contagious yawning from an inanimate model, although the underlying mechanisms remain unclear. Further research could explore whether other robotic behaviors might also have contagious effects on animals [6].