Science

Your Brain Has a Hidden Beat -- and Smarter Minds Sync To It (sciencedaily.com) 53

alternative_right shares a report from ScienceDaily: When the brain is under pressure, certain neural signals begin to move in sync -- much like a well-rehearsed orchestra. A new study from Johannes Gutenberg University Mainz (JGU) is the first to show how flexibly this neural synchrony adjusts to different situations and that this dynamic coordination is closely linked to cognitive abilities. "Specific signals in the midfrontal brain region are better synchronized in people with higher cognitive ability -- especially during demanding phases of reasoning," explained Professor Anna-Lena Schubert from JGU's Institute of Psychology, lead author of the study recently published in the Journal of Experimental Psychology: General.

The researchers focused on the midfrontal area of the brain and the measurable coordination of the so-called theta waves. These brainwaves oscillate between four and eight hertz and belong to the group of slower neural frequencies. "They tend to appear when the brain is particularly challenged such as during focused thinking or when we need to consciously control our behavior," said Schubert, who heads the Analysis and Modeling of Complex Data Lab at JGU. The 148 participants in the study, aged between 18 and 60, first completed tests assessing memory and intelligence before their brain activity was recorded using electroencephalography (EEG). [...]

As a result, individuals with higher cognitive abilities showed especially strong synchronization of theta waves during crucial moments, particularly when making decisions. Their brains were better at sustaining purposeful thought when it mattered most. "People with stronger midfrontal theta connectivity are often better at maintaining focus and tuning out distractions, be it that your phone buzzes while you're working or that you intend to read a book in a busy train station," explained Schubert.
The findings have been published in the Journal of Experimental Psychology.
Biotech

Wearable AI-Powered Neurotech Startup Promises 'Electric Medicine' and Wellness Benefits (msn.com) 30

"Something revolutionary is on the horizon..." claims the company's web site. "Wearable neurotechnology that augments sleep, attention, and ultimately the human experience."

Or, as Fierce Biotech put it, "A startup emerged from stealth this week with grand plans to pioneer a new form of neurotech dubbed 'electric medicine.'" Elemind's approach centers on artificial intelligence-powered algorithms that are trained to continuously analyze neurological activity collected by a noninvasive wearable device, then to deliver through the wearable bursts of neurostimulation that are uniquely tailored to those real-time brain wave readings. The Cambridge, Massachusetts-based company claims that its approach — which is based on research from its founders, a group of high-profile scientists hailing from the likes of MIT, Stanford and Harvard — offers a more "natural" treatment option than pharmaceuticals for neurological conditions like insomnia, essential tremor and memory loss.

"Chemical drugs affect the entire body, often leading to unwanted side effects. Elemind offers a nonchemical, direct and on-demand solution that learns and dynamically adjusts to each person," Meredith Perry, a co-founder of Elemind and its CEO, said in the company's debut announcement. "We're the first and only company able to precisely guide and redirect brainwaves in real time."

"Elemind's first product is a general wellness device and will not be subject to FDA regulation," notes an announcement from the company. But they've thoroughly researched the product's potential: To date, Elemind's technology is supported by five clinical trials and several publications in peer-reviewed scientific journals. Clinical trials show Elemind's technology is effective at inducing sleep up to 74% faster, suppressing essential tremor with a significant decrease after only 30 seconds of stimulation, and boosting memory. Clinical trials also demonstrate Elemind is effective at increasing pain thresholds and enhancing sedation; this study is currently in peer review....

"You can think about it like noise cancellation for the mind," said Dr. David Wang, CTO and co-founder of Elemind. "Our technology uses phase-locking auditory stimuli to align precisely with the user's brainwaves and steer them to a different frequency associated with a different state."

The company plans to announce its first product within a few months, reports the Boston Globe, noting that the company's $12 million in seed funding came from "a consortium that includes Village Global, an early-stage venture fund backed by high-tech billionaires Jeff Bezos, Bill Gates., Reid Hoffman, and Ann Wojcicki..."

More info from VentureBeat.
AI

NextMind's Brain-Computer Interface Kit Begins Shipping To Developers (venturebeat.com) 24

"Don a headset which places a sensor on the back of your head, and it'll detect your brainwaves which can then be translated into digital actions," writes Engadget.

VentureBeat reports that NextMind "has started shipping its real-time brain computer interface Dev Kit for $399." The device translates brain signals into digital commands, allowing you to control computers, AR/VR headsets, and IoT devices (lights, TVs, music, games, and so on) with your visual attention.

Paris-based NextMind is part of a growing number of startups building neural interfaces that rely on machine learning algorithms. There are invasive devices like the one from Elon Musk's Neuralink, which in August revealed a prototype showing readings from a pig's brain using a coin-shaped device implanted under the skull. There are also noninvasive devices like the electromyography wristband that translates neuromuscular signals into machine-interpretable commands from Ctrl-labs, which Facebook acquired in September 2019. NextMind is developing a noninvasive device — an electroencephalogram (EEG) worn on the back of your head, where your brain's visual cortex is located.

When we spoke with NextMind CEO Sid Kouider last year, he promised the kits would begin shipping in Q2 2020. Then the pandemic hit. "We had about three, four months of delays due to COVID-19, but not more than that in terms of production," Kouider told VentureBeat. The company shipped "hundreds" of Dev Kits in November after producing its first thousand units. Another thousand units are set to be produced next month.

Science

Paralysed Man Moves in Mind-Reading Exoskeleton (bbc.com) 30

A man has been able to move all four of his paralyzed limbs with a mind-controlled exoskeleton suit, French researchers report. From a report: Thibault, 30, said taking his first steps in the suit felt like being the "first man on the Moon." His movements, particularly walking, are far from perfect and the robo-suit is being used only in the lab. But researchers say the approach could one day improve patients' quality of life. Thibault had surgery to place two implants on the surface of the brain, covering the parts of the brain that control movement.

Sixty-four electrodes on each implant read the brain activity and beam the instructions to a nearby computer. Sophisticated computer software reads the brainwaves and turns them into instructions for controlling the exoskeleton. Thibault has to be strapped into the exoskeleton. And he can control each of the arms, maneuvering them in three-dimensional space.

Facebook

Facebook Gets Closer To Letting You Type With Your Mind (cnn.com) 70

An anonymous reader shares a report: More than two years ago, Facebook revealed it was working on a project for typing words onto a computer right from your brain, without requiring invasive surgery to make it work. The company has been working with several universities on the effort, including the University of California, San Francisco. Facebook helped pay for UCSF researchers to study whether electrodes placed in the brain could help us learn to "decode" speech from brainwaves in real time. As it turns out, this is possible: A study published Tuesday showed that researchers could instantly see -- as text on a computer screen -- a word or phrase that a participant was thinking from brain activity, as long as it was a response to a limited set of questions. The study includes three epilepsy patients voluntarily implanted with electrodes.

Facebook is also footing the bill for a new, year-long study that UCSF is currently conducting where it will try to use brain activity to help a person who can't speak communicate. The social network hopes the efforts could help reveal which brain signals are key for that non-invasive wearable that it's planning for in the years ahead. "We expect that to take upwards of 10 years," Mark Chevillet, a research director at Facebook Reality Labs who runs its brain-computer interface group, told CNN Business of the overall project. "This is a long-term research program."

Robotics

Humans Can Now Correct Robots With Brainwaves (popularmechanics.com) 31

Researchers at MIT have built a system that allows robots to be corrected through thought and hand gestures. "The system monitors brain activity, determining if a person has noticed an error in the machine's work," reports Popular Mechanics. "If an error is detected, the system reverts over to human control. From that point, all it takes is a flick of the wrist to get the robot back on the right course." From the report: "This work combining EEG and EMG feedback enables natural human-robot interactions for a broader set of applications than we've been able to do before using only EEG feedback. By including muscle feedback, we can use gestures to command the robot spatially, with much more nuance and specificity," says CSAIL Director Daniela Rus, who supervised the work, in a press statement. EEG refers to electroencephalography, a type of biofeedback which uses real-time displays of brain activity to each self-regulation to the brain. EMG feedback refers to electromyography, which is the recording of the electrical activity of muscle tissue.

Earlier brain recognition systems required people to think in highly specific ways to achieve EEG or EMG recognition. What Rus' team realized is that when the human brain recognizes an error, it automatically releases a very specific signal all on its own. These signals are called error-related potentials (ErrPs). When the robotic system notices an ErrP signal in the human brain, it turns the robot over to human control.

China

China is Now Monitoring Employees' Brainwaves and Emotions (fastcompany.com) 123

From a report: The Orwellian-as-all-get-out practice is being conducted using "emotional surveillance technology" by both businesses in China and the country's military, reports the South China Morning Post. The tech uses small wireless sensors embedded in employees' hats that can monitor brainwaves. That brainwave data is then analyzed by AI to tell when an employee is tired, anxious, or even full of rage. One company using the brain-monitoring tech says profits have increased by $315 million since rolling it out way back in 2014. Other uses of the tech include monitoring drivers of trains to tell if they've fallen asleep or are at risk of doing so. It's important to note the technology cannot read people's thoughts.
Science

Scientists Identify Parts of Brain Involved In Dreaming (theguardian.com) 86

An anonymous reader quotes a report from The Guardian: Scientists have unpicked the regions of the brain involved in dreaming, in a study with significant implications for our understanding of the purpose of dreams and of consciousness itself. What's more, changes in brain activity have been found to offer clues as to what the dream is about. Writing in the journal Nature Neuroscience, Siclari and colleagues from the U.S., Switzerland and Italy, reveal how they carried out a series of experiments involving 46 participants, each of whom had their brain activity recorded while they slept by electroencephalogram (EEG) -- a noninvasive technique that involved placing up to 256 electrodes on the scalp and face to monitor the number and size of brainwaves of different speeds. While the experiments probed different aspects of the puzzle, all involved participants being woken at various points throughout the night and asked to report whether they had been dreaming. If the participants had been dreaming, they were asked how long they thought it had lasted and whether they could remember anything about their dream, such as whether it involved faces, movement or thinking, or whether it was instead a vivid, sensory experience. Analysis of the EEG recording reveal that dreaming was linked to a drop in low-frequency activity in a region at the back of the brain dubbed by the researchers the "posterior cortical hot zone" -- a region that includes visual areas as well as areas involved in integrating the senses. The result held regardless of whether the dream was remembered or not and whether it occurred during REM or non-REM sleep. The researchers also looked at changes in high-frequency activity in the brain, finding that dreaming was linked to an increase in such activity in the so-called "hot zone" during non-REM sleep. Further, the team identified the region of the brain which appears to be important in remembering what a dream was about, finding that this recall was linked to an increase in high-frequency activity towards the front of the brain. A similar pattern of activity was seen in the hot zone and beyond for dreams during REM sleep. The upshot is that dreaming is rooted in the same changes in brain activity regardless of the type of sleep.
The Almighty Buck

The Mind-Reading Gadget For Dogs That Got Funded, But Didn't Get Built (ieee.org) 66

the_newsbeagle writes: Crowdfunding campaigns that fail to deliver may be all too common, but some flameouts merit examination. Like this brain-scanning gadget for dogs, which promised to translate their barks into human language. It's not quite as goofy as it sounds: The campaigners planned to use standard EEG tech to record the dogs' brainwaves, and said they could correlate those electrical patterns with general states of mind like excitement, hunger, and curiosity. The campaign got a ton of attention in the press and raised twice the money it aimed for. But then the No More Woof team seemed to vanish, leaving backers furious. This article explains what went wrong with the campaign, and what it says about the state of neurotech gadgets for consumers.
Science

Weak Electrical Field Found To Carry Information Around the Brain (eurekalert.org) 123

Zothecula writes: In a development that could lead to improved understanding of memory formation and epilepsy, scientists have discovered a new way information may be traveling throughout the brain. The team has identified slow-moving brainwaves it says could be carried only by the brain's gentle electrical field (abstract), a mechanism previously thought to be incapable of spreading neural signals altogether. "Although the electrical field is of low amplitude, the field excites and activates immediate neighbors, which, in turn, excite and activate immediate neighbors, and so on across the brain at a rate of about 0.1 meter per second."
Medicine

Paralyzed Man Uses Own Brainwaves To Walk Again -- No Exoskeleton Required 35

Zothecula writes: A man suffering complete paralysis in both legs has regained the ability to walk again using electrical signals generated by his own brain. Unlike similar efforts that have seen paralyzed subjects walk again by using their own brainwaves to manually control robotic limbs, the researchers say this is the first time a person with complete paralysis in both legs due to spinal cord injury was able to walk again under their own power and demonstrates the potential for noninvasive therapies to restore control over paralyzed limbs.
Science

'Brain-to-Text' Interface Types Thoughts of Epileptic Patients 31

Jason Koebler writes with a link to Motherboard's article about research from the Schalk Lab of Albany, New York, where researchers "have just demonstrated for the first time that it's possible to turn a person's thoughts into a legible phrase using what they're calling a "brain-to-text" interface," writing "It's still still the early days of this technology—electrodes had to be placed directly on the brain and the 'dictionary' of phrases was limited. Still, brainwaves of thought patterns were turned into text at a rate much better than chance."
Television

BBC Develops "Mind-Control TV" Headset For iPlayer App 27

An anonymous reader writes: The BBC has teamed up with tech company This Place to develop a prototype television headset that can be operated with the power of brainwaves. The Mind Control TV prototype works with an experimental version of the BBC's iPlayer on-demand platform. "It's an internal prototype designed to give our programme makers, technologists and other users an idea of how this technology might be used in future. It was much easier for some than it was for others, but they all managed to get it to work." said Cyrus Saihan, head of business development for the BBC's Digital division.
Input Devices

Take a Picture Just By Thinking About It, Using Google Glass With MindRDR App 41

rtoz (2530056) writes A London based company, This Place, is launching a new app "MindRDR" for providing one more way for controlling Google Glass. It will allow the users to control the Google Glass with their thoughts. This MindRDR application bridges the Neurosky EEG biosensor and Google Glass. It allows users to take photos and share them on Twitter and Facebook by simply using brainwaves alone. This Place has put the code of this app on GitHub for others to use it and expand on it.
Displays

Mind Control In Virtual Reality, Circa 2013 35

New submitter chrisjz writes "What happens when you combine a virtual reality headset and a brainwave reading device? Here's a simulation showing off what's possible with current technology, using the Emotiv EPOC to read a person's brainwaves for movement in a virtual environment. Along with the Oculus Rift, a VR headset, and the Razer Hydra for hand tracking, this demonstrates another alternative to using omni-directional treadmills or full body tracking for movement and interaction in virtual reality. Consumer level brain computer interfaces are still primitive these days, but it doesn't seem too far off that we'll have virtual reality similar to what William Gibson envisioned in his novels or movies such as The Matrix has shown us."
Security

Your Brain Waves Are a Password: How Your Next Car Will Check You're Not a Thief 169

cartechboy writes "And you thought stealing cars was hard today? You're facing locks, kill switches, LoJacks, OnStar, and more. But there's worse on the way: Engineers at Japan's Tottori University have developed a prototype theft-prevention system that uses brain waves to identify drivers. That's right: The system samples your brain waves, stores them--and actually shuts down the car if the driver's EEG signals don't match what's on file. It also busts drunk and sleepy drivers, because their brain waves differ from those when you're fully awake and totally sober. One non-Tron downside: If you want to drive, you have to wear a scary-looking set of sensors on your skull so the car can constantly reads your brainwaves."
Input Devices

Quadcopter Guided By Thought — Accurately 79

ananyo writes "A toy quadcopter can be steered through an obstacle course by thought alone. The aircraft's pilot operates it remotely using a cap of electrodes to detect brainwaves that are translated into commands. Ultimately, the developers of the mind-controlled copter hope to adapt their technology for directing artificial robotic limbs and other medical devices." From the paper (PDF) abstract: "... we report a novel experiment of BCI controlling a robotic quadcopter in three-dimensional (3D) physical space using noninvasive scalp electroencephalogram (EEG) in human subjects. We then quantify the performance of this system using metrics suitable for asynchronous BCI. Lastly, we examine the impact that the operation of a real world device has on subjects’ control in comparison to a 2D virtual cursor task. Approach. ... Individual subjects were able to accurately acquire up to 90.5% of all valid targets presented while traveling at an average straight-line speed of 0.69 m s^(1)." This also appears to be the first time a Brain-Computer Interface was used to operate a flying device in 3D space. Also, there are several additional videos showing people operating the quadcopter.
Science

Samsung Researching How To Let You Control Your Phone With Your Brain 80

Nerval's Lobster writes "Samsung is testing a way to control your mobile device with your brainwaves. If that project succeeds, it would truly be a case of science fiction brought to real life. According to MIT Technology Review, Samsung's Emerging Technology Lab is collaborating with Roozbeh Jafari, assistant professor of electrical engineering at the University of Texas, Dallas, on the early-stage research. That research involves placing a cap 'studded with EEG-monitoring electrodes' atop the head of a convenient subject, who then concentrates on an onscreen icon blinking at a particular rate. Concentrate hard enough, and the subject can launch and interact with applications. However, Samsung also indicated that mind-controlled mobile devices are quite a ways off, if they ever appear in a market-ready form at all. 'Several years ago, a small keypad was the only input modality to control the phone, but nowadays the user can use voice, touch, gesture, and eye movement to control and interact with mobile devices,' Insoo Kim, Samsung's lead researcher, told the Review. 'Adding more input modalities will provide us with more convenient and richer ways of interacting with mobile devices.' In any case, it's a crazy concept, the sort of thing Philip K. Dick might have written up as a short story; but it's one evidently grounded in reality."
Security

Passthoughts, Not Passwords: Authentication Via Brainwaves 104

CowboyRobot writes "A new study by researchers from the U.C. Berkeley School of Information examined the brainwave signals of individuals performing specific actions to see if they can be consistently matched to the right individual. To measure the subjects' brainwaves, the team utilized the NeuroSky Mindset, a Bluetooth headset that records Electroencephalographic (EEG) activity. In the end, the team was able to match the brainwave signals with 99% accuracy (pdf). 'We are not trying to trace back from a brainwave signal to a specific person,' explains Prof. John Chuang, who led the team. 'That would be a much more difficult problem. Rather, our task is to determine if a presented brainwave signal matches the brainwave signals previously submitted by the user when they were setting up their pass-thought.'"
Software

Mobile App Screens Calls With Brain Waves 40

alphadogg writes "A mobile app under development can filter phone calls and reroute them directly to voicemail by reading brain waves, cutting the need for users to press buttons on the smartphone screen. The app, called Good Times, is the brainchild of Ruggero Scorcioni, CEO and founder of Brainyno, who presented the technology at the AT&T Innovation Showcase in New York, where some of the company's top research projects were highlighted. The app analyzes brainwaves as a phone call comes in, and depending on a person's mental state, reroutes a call. Information about brain waves is collected by a headset and sent to the smartphone via a Bluetooth connection, after which the app uses algorithms to analyze the status of a brain." Of course, the user has to be wearing a headset to detect the brainwaves. The software's creator hopes such detection can someday be integrated into devices like Google Glass.

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