TU Graz researchers develop new brain-computer interface application which allows music to be composed by the power of thought. How this works is shown in the current issue of the journal PLOS ONE.
Brain-computer interfaces, known as BCI, can replace bodily functions to a certain degree. Thanks to BCI, physically impaired persons can control special prostheses through the power of their minds, surf in internet and write emails.
Under the title of “Brain Composer”, a group led by BCI expert Gernot Müller-Putz from TU Graz’s Institute of Neural Engineering shows that experiences of quite a different tone can be sounded from the keys of brain-computer interfaces. Derived from an established BCI method which mainly serves to spell – more accurately – write by means of BCI, the team has developed a new application by which music can be composed and transferred onto a musical score – just through the power of thought. All you need is a special cap which measures brain waves, the adapted BCI, a software for composing music, and of course a bit of musical knowledge.
The basic principle of the BCI method used, which is called P300, can be briefly described: various options, such as letters or notes, pauses, chords, etc. flash by one after the other in a table. If you’re trained and can focus on the desired option while it lights up, you cause a minute change in your brain waves. The BCI recognises this change and draws conclusions about the chosen option.
Musical test persons
18 test persons chosen for the study by Gernot Müller-Putz, Andreas Pinegger and Selina C. Wriessnegger from TU Graz’s Institute of Neural Engineering as well as Hannah Hiebel, meanwhile at the Institute of Cognitive Psychology & Neuroscience at the University of Graz, had to “think” melodies onto a musical score. All test subjects were of sound bodily health during the study and had a certain degree of basic musical and compositional knowledge since they all played musical instruments to some degree. Among the test persons was the late Graz composer and clarinettist, Franz Cibulka. “The results of the BCI compositions can really be heard. And what is more important: the test persons enjoyed it. After a short training session, all of them could start composing and seeing their melodies on the score and then play them. The very positive results of the study with bodily healthy test persons are the first step in a possible expansion of the BCI composition to patients,” stresses Müller-Putz.
Sideshow of BCI research
This little-noticed sideshow of the lively BCI research at TU Graz, with its distinct focus on disabled persons, shows us which other avenues may yet be worth exploring. Meanwhile there are some initial attempts at BCI systems on smart phones. This makes it easier for people to use BCI applications, since the smart phone as powerful computer is becoming part of the BCI system. It is thus conceivable, for instance, to have BCI apps which can analyse brain signals for various applications. “20 years ago, the idea of composing a piece of music using the power of the mind was unimaginable. Now we can do it, and at the same time have tens of new, different ideas which are in part, once again, a long way from becoming reality. We still need a bit more time before it is mature enough for daily applications. The BCI community is working in many directions at high pressure.
The Latest on: Brain-computer interface
- BrainNet: A Multi-Person Brain-to-Brain Interface for Direct Collaboration Between Brains on April 16, 2019 at 2:17 am
Architecture of BrainNet. Two participants (“Sender 1” and “Sender 2”) each use a Brain-Computer Interface (BCI) based on EEG to convey information about a collaborative task (here, a Tetris-like game ... […]
- Researchers create ‘sewing machine’ to implant electrodes in brains on April 15, 2019 at 2:27 pm
the researchers are optimistic that their implantation system could facilitate the creation of an artificially intelligent mind-reading brain-computer interface as well, wrote Futurism. The study ... […]
- Research highlight: Brain-Computer Interface Lab on April 14, 2019 at 6:13 pm
Combining knowledge of the human brain and computing technologies, the Brain-Computer Interface and Neuroergonomics Lab is doing cutting-edge research that aids in rehabilitation, among other ... […]
- A Neural Implant Can Access Your Brain Through the Jugular Vein on April 13, 2019 at 5:00 pm
For the first time, doctors are preparing to test a brain-computer interface that can be implanted onto a human brain, no open surgery required. The Stentrode, a neural implant that can let paralysed ... […]
- Scientists say our brains will connect to computers in decades to form the 'internet of thoughts' on April 12, 2019 at 8:58 am
Nevertheless, with these and other promising technologies for [brain-computer interface] developing at an ever-increasing rate, an 'internet of thoughts' could become a reality before the turn of the ... […]
- Talk About Brain Power: USF Students Fly Drones Using Their Minds on April 10, 2019 at 9:01 am
The headband is actually a brain-computer interface (BCI) that creates a pathway for EEG signals between the pilot's brain, the drone, and the computer program running in front of the pilot. “We take ... […]
- Stentrode Minimally Invasive Brain-Computer Interface Going on Trial on April 8, 2019 at 11:45 am
High fidelity brain-computer interfaces generally require the placement of an implant beneath the skull, a highly invasive and potentially dangerous procedure. A new device, developed at the ... […]
- Brain Computer Interface for Spinal Cord Injury on April 8, 2019 at 8:08 am
This post contains affiliate links. That means we may earn a commission (at no extra cost to you) if you make a purchase through one of these links. We recommend you buy any of these products only ... […]
- Synchron Initiates First-ever Clinical Trial to Evaluate Thought-to-Text™ Brain-Computer Interface Technology in Patients with Severe Paralysis on April 8, 2019 at 6:25 am
SAN FRANCISCO and NEW YORK and MELBOURNE, Australia, April 8, 2019 /PRNewswire/ -- Synchron, Inc. today announced the initiation of the first clinical trial for the Stentrode™, a minimally-invasive ... […]
- This Neural Implant Accesses Your Brain Through the Jugular Vein on April 7, 2019 at 7:11 am
For the first time, doctors are preparing to test a brain-computer interface that can be implanted onto a human brain, no open surgery required. The Stentrode, a neural implant that can let ... […]
via Google News and Bing News