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WHY THIS MATTERS IN BRIEF

Mind reading technology is advancing at a rapid rate and breakthroughs like this one are giving some patients back their freedoms.

 

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A man paralysed from the neck down has just gained the ability to type words using only his brain about as fast as the average smartphone user, a new study says. And that’s fast – much faster than when researchers managed to get monkies to use their brains to type at a speed of just 12 words per minute.

 

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This aptly named “Mind writing” was achieved using a Brain Machine Interface (BMI) technology, some of which can now be packed into a pair of common-a-garden glasses or even a stick on tattoo, that picked up neural signals from his brain and fed them into an algorithm which translated them into letters.

The secret to the success, and why this particular BMI was able to produce words at such a faster rate than other BMI’s in the past, was that it tracked the brain signals of the patient, known as T5, as he imagined writing them down with a pen – a skill which imprints so thoroughly on our motor skill system that it remains for years after paralysis evidently.

The man was 65 at the time of the study, but it was 2007 when he suffered his spinal cord injury.

 

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“With this BMI, our study participant achieved typing speeds of 90 characters per minute with 94.1% raw accuracy online, and greater than 99% accuracy offline with a general-purpose autocorrect,” wrote the authors, whose paper can be read in Nature. “To our knowledge, these typing speeds exceed those reported for any other BMI, and are comparable to typical smartphone typing speeds of individuals in the age group of our participant”

Conducted by Stanford University and the Howard Hughes Medical Institute, the most common error the machine made was with lowercase letters of similar shapes, such as ‘r’, ‘h’, and ‘n’.

At first they allowed the patient to write each letter as he would with his hand, and eventually moved to asking him questions, allowing him to write out his responses – which pleased him no end, they told NPR.

 

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Some BMIs and other machines that are designed to allow paralysed people to write typically track eye movement, which is often retained even in the most extreme cases of paralysis, such as with the famous locked-in syndrome patient Jean-Dominique Bauby. Bauby is known for writing The Diving Bell and the Butterfly, published in 1997, which he composed entirely through the painstaking process of blinking upon an aid’s selection of the correct letter.

Stanford had conducted other trials with different BMIs before, in which they used eye-monitoring equipment, but found it required tremendous attention and focus from the user.

The new BMI isn’t yet developed enough to be called a prototype, meaning it will likely be years before more paralysis victims can regain their ability to communicate. However, this also means the room for refinement is much higher, explained one scientist, speaking with CNN.

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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