Manufacturer: g.tec

Made in: Austria

intendiX® SPELLER

is designed to be installed and operated by caregivers or the patient’s family at home. The system is based on visual evoked EEG potentials (VEP/P300) and enables the user to sequentially select characters from a keyboard like matrix on the screen just by paying attention to the target for several seconds. This requires only a few minutes of training. Most subjects can use intendiX® SPELLER after only 10 minutes with reasonable performance, spelling 5 to 10 characters per minute at their first trial. intendiX® SPELLER uses an intelligent algorithm to determine whether the user wants to use the system, so it doesn’t spell accidentally. In addition to writing text, the patient can also use the system to trigger an alarm, let the computer speak the written text, print out or copy the text into an e-mail or to send commands to external devices. To control external devices a special extension tool called “extendiX” serves as an interface. extendiX runs on a separate computer that controls other devices and applications such as TVs, music, assistive robots, games and so on. extendiX X just receives commands from intendiX® SPELLER via UDP and starts/executes the corresponding application or batch. The EEG cap is comfortable, easy to clean, and with active electrodes that do not require any special skin preparation. Just put on the cap, inject a drop of gel into each of the electrodes and start to spell! intendiX® SPELLER includes the active electrode system, a portable EEG acquisition system and a notebook or netbook computer with the intendiX® SPELLER software installed. Also, ask for our new g.SAHARA dry electrodes. NEW: intendiX® SPELLER now includes an alternative matrix board where celebrities’ faces are displayed instead of the highlighted items for flashing. This “FACE-speller” mode seems to elicit stronger P300 responses compared to the regular flash mode. Some preliminary experiments show a clear improvement of performance using the FACE-speller mode.

intendiX ® SOCI

Screen Overlay Control Interface The system allows to overlay the PC screen with a mask that contains icons used to control the program running on the screen. The technology uses the Steady-State Visual Evoked Potential (SSVEP) approach for Brain-Computer Interfaces (BCI). The different icons on the monitor each flicker at certain frequencies. As soon as the user pays attention to one of the icons, it’s flickering frequency can be detected in the EEG, which is picked up by a few sensors on the back of the user’s head. Then, the system executes a command that is assigned to that certain icon, such as a certain key on the keyboard. Using its advanced sensors and recently up-graded signal processing algorithms, the intendiX® SOCI can detect these different brain signals with an accuracy of up to 98%. In March 2012, g.tec debuted its new module to control Blizzard Entertainment’s World of Warcraft®, one of the most popular computer games in the world. The user sees the game running on the screen as usual, but a few extra icons appear around the edge of the monitor. For example, there are arrows pointing in different directions, which could be used for navigation in the game world. Other icons may be used to execute special commands in the game. The goal of intendiX® SOCI is to provide a tool usable for controlling many different PC applications without requiring any muscle activity. Gaming is an interesting approach as it is a demanding task in terms of speed and accuracy of a Brain-Computer Interface. It also provides a way to connect dis-abled or healthy people to rich online communities with millions of people.

intendiX ® PAINTING

when art overcomes disabilities Before children start to write, they first learn to draw. Drawing is one of the oldest techniques humans have been using to communicate and visualize ideas, knowledge and emotions. There are cave paintings made 40,000 years ago, and people still use painting to express things that cannot be communicated through words. Painting can be under-stood in any language. That’s why a picture is “worth a thousand words”. With this idea in mind, g.tec implemented the intendiX® Painting application. This user-friendly software makes it possible to draw without using any muscle activity. Based on visual evoked EEG potentials (VEP/P300), it allows the user to paint by paying attention to symbols that flash on a com-puter screen. With intendiX® PAINTING, users can design different color shapes, modify the color gradient, select different transparencies or change figures’ sizes. And, of course, users can perform these actions at any position on the screen by controlling the painting cursor. intendiX® PAINTING allows infinite combinations of creation, limited only by imagination. In addition to paint, the user can also undo and redo actions, save the current artwork, load previ-ous files to continue drawing and print the finished artwork. Like our spelling system, the intendiX® PAINTING requires only few minutes of training, allowing the user to make 5 to 10 painting actions per minute. intendiX® Painting can also detect users’ attention to avoid accidental drawing and reduce selection mistakes. intendiX® Painting uses a cus-tomized symbol matrix and runs in the standard intendiX® SPELLER application. extendiX is used to receive the com-mands and create the painting.