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科学家用电线连接两老鼠大脑实现实时共享信息

科学家用电线连接两老鼠大脑实现实时共享信息

上个月早些时候,杜克大学(Duke University)的研究人员给老鼠装上红外线探测器,使其能感知红外光。在发表在《Scientific Reports》的最新研究中,他们利用相同的技术,让两只实验鼠实现大脑信息共享,两只老鼠的通信距离甚至远达上千英里,他们实现了现实版的心灵感应。

科学家用电线连接两老鼠大脑实现实时共享信息

研究人员首先训练一对老鼠完成简单任务:在控制杆上面的灯点亮时按下正确的控制杆,以能喝上一口水。然后,将两只老鼠放置在不同的封闭盒子内,在大脑处理运动信息的皮质植入微电极阵列,将两只老鼠的电极连在一起。


一只老鼠充当Encoder,另一只充当Decoder(如上图)。当Encoder按下正确的控制杆,其大脑活动产生的电刺激信号会传递到Decoder。Encoder能看到指示灯,但 Decoder没有,因此为了喝水Decoder只能依赖于Encoder通过大脑接口传来的线索。在实验中,Decoder的成功率约为70%。

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A Brain-to-Brain Interface for Real-Time Sharing of Sensorimotor Information

Scientific Reports, 28 February 2013 | 1319 doi:10.1038/srep01319

A brain-to-brain interface (BTBI) enabled a real-time transfer of behaviorally meaningful sensorimotor information between the brains of two rats. In this BTBI, an “encoder” rat performed sensorimotor tasks that required it to select from two choices of tactile or visual stimuli. While the encoder rat performed the task, samples of its cortical activity were transmitted to matching cortical areas of a “decoder” rat using intracortical microstimulation (ICMS). The decoder rat learned to make similar behavioral selections, guided solely by the information provided by the encoder rat's brain. These results demonstrated that a complex system was formed by coupling the animals' brains, suggesting that BTBIs can enable dyads or networks of animal's brains to exchange, process, and store information and, hence, serve as the basis for studies of novel types of social interaction and for biological computing devices.

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