As scientists continue to push the boundaries of brain computer interfaces we’re getting closer to creating a human hive mind.


Recently a team in the US managed to prove that they could use a matrix style technology to upload knowledge directly to the human brain, and now another team of researchers have managed to create an electronic link between the brains of two rats, and demonstrated that signals from the mind of one can help the second solve basic puzzles in real time – even when those animals are separated by thousands of miles.


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In the experiment an “Encoder” rat based in Natal, Brazil, trained in a specific behavioural task, presses a lever in its cage it knows will earn it a reward and an implant in its brain records activity from the rat’s motor cortex and converts it into an electrical signal that is delivered via an electronic neural link to the brain implant of a second “decoder” rat.

This is where things get interesting.

Rat number two is in an entirely different cage. In fact, it’s in North Carolina. The second rat’s motor cortex processes the signal from rat number one and – despite being unfamiliar with the behavioural task the first rat has been conditioned to perform – uses that information to press the same lever.



The experiment, the results of which are published in Scientific Reports, was led by Duke University neuroscientist Miguel Nicolelis, a pioneer in the field of Brain to Computer Interfaces (BCIs). Back in 2011, Nicolelis and his colleagues unveiled a BCI interface that was capable of creating a bi-directional link between a brain and a virtual body that let a monkey not only mentally control a simulated arm, but receive and process sensory feedback about tactile properties like texture, then, soon afterwards, his team unveiled a BCI that enabled rats to detect normally invisible infrared light via their sense of touch.


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But an intercontinental “mind meld,” a brain to brain interface between two live rats, one that enables realtime sharing of sensorimotor information, is something new. It’s a scientific first, and while it’s not telepathy, per se, it’s certainly something close. Neither rat was necessarily aware of the other’s existence, for example, but it’s clear that their minds were, in fact, communicating.

“It’s not the Borg,” said Nicolelis.

What he has created, he says, is “a new central nervous system made of two brains,” and the said nervous system is far from perfect. Untrained decoder rats receiving input from a trained encoder partner only chose the correct lever around two thirds of the time. That’s definitely better than random odds, but still a far cry from the 95% accuracy of the encoder rats.

What this two brain system does do, Nicolelis argues, is enable the rats to work with one another in unprecedented ways. And while neural communication between two animals on entirely separate continents is impressive in its own right, Nicolelis says the most groundbreaking application of this technology – a 3, 4, or n- mind “brain net” – is still to come.


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“These experiments demonstrated the ability to establish a sophisticated, direct communication linkage between rat brains,” he said, “so basically, we are creating an organic computer that solves a puzzle.”

 “We cannot predict what kinds of emergent properties would appear when animals begin interacting as part of a brain-net,” he continues, “in theory, you could imagine that a combination of brains could provide solutions that individual brains cannot achieve by themselves.”
About author

Matthew Griffin

Matthew Griffin, described as “The Adviser behind the Advisers” and a “Young Kurzweil,” is the founder and CEO of the World Futures Forum and the 311 Institute, a global Futures and Deep Futures consultancy working between the dates of 2020 to 2070, and is an award winning futurist, and author of “Codex of the Future” series. Regularly featured in the global media, including AP, BBC, Bloomberg, CNBC, Discovery, RT, Viacom, and WIRED, Matthew’s ability to identify, track, and explain the impacts of hundreds of revolutionary emerging technologies on global culture, industry and society, is unparalleled. Recognised for the past six years as one of the world’s foremost futurists, innovation and strategy experts Matthew is an international speaker who helps governments, investors, multi-nationals and regulators around the world envision, build and lead an inclusive, sustainable future. A rare talent Matthew’s recent work includes mentoring Lunar XPrize teams, re-envisioning global education and training with the G20, and helping the world’s largest organisations envision and ideate the future of their products and services, industries, and countries. Matthew's clients include three Prime Ministers and several governments, including the G7, Accenture, Aon, Bain & Co, BCG, Credit Suisse, Dell EMC, Dentons, Deloitte, E&Y, GEMS, Huawei, JPMorgan Chase, KPMG, Lego, McKinsey, PWC, Qualcomm, SAP, Samsung, Sopra Steria, T-Mobile, and many more.


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