Tuesday , August 9 2022

System for disabled people to access Twitter | ELESPECTADOR.COM


An instrument that allows smartphone control through brainholes could be a solution for people with neurosurgery to access social networks.

Managing a managing topic & the new BCI system (the brain-computer interface). Zinc Agency – GIB

The Biomedical Engineering Group (GIB) of the University of Valladolid, Spain, has developed a BCI system (an abbreviation in English of a computer-brain interface) which allows smartphone users with a great disability access to & # 39; w social networks, in particular, to Twitter and the Telegram app immediately, by collecting and processing the electroencephalogram (EEG) signal in real time. Here is the first study that modifies the BCI system to the parade of mobile devices and social networks. (Reading After four decades have gone, they find the largest bees in the world)

"They are the tools we use everyday, but their accessibility for people who can not control their hands is limited in practice to voice control", explains one of the authors, Víctor Martínez, who is # 39 ; n remember that there is a large group of people with neurodegenerative or traumatic diseases that also cause difficulties to speak clearly, which makes use of voice control. (Read Calamares, the alternative to replace the plastic?)

"Our system allows us to control smartphone communications actions using only user waves, with the aim of increasing the quality of life of this group", the researcher emphasizes.

The system consists mainly of three phases. In the first, the user's EEG signal is collected by locating eight electrodes in her hair leather. In the second, a laptop receives the signal and identifies the user's intentions in every minute of their visual stimuli. In the third phase, the wirelessly selected order is sent through Bluetooth mobile phone technology, which is responsible for interpreting and managing the social network.

Evaluation with users

The team has evaluated the system in a population of users with severe motor disabilities, belonging to the State Referral Center for Disability and Dependency San Andrés del Rabanedo, in León, and researchers are collaborate with each other in different projects.

Specifically, it has been tested with 10 control topics and 18 different motorized users with three appraisal sessions for each user. In the first two, the BCI system was calibrated, modifying the different parameters according to the brain activity of each user. In the third session, users were asked to complete a total of six tasks of increasing difficulty, among those who wrote a tweet or chat on Telegram.

The researchers found an average accuracy of 92.3% for management subjects and 80.6% for users with a severe disability, which, as a first projection, "is a positive result and shows that integrating BCI systems in smartphones is possible." the users are satisfied with the application and highlight its easy to use as one of the strongest points of the proposal.

However, BCI systems are, in general, in the research period and much more studies will be needed to solve the current constraints, as in this case, the problems that control sight or unintended gatherings of some users, until real action arrives.

"In future, these systems could be procured by day centers or rehabilitation to promote the independence and social integration of dependent people, increasing their quality of life," said Martinez.

This project, which also includes researchers, Eduardo Santamaría, Javier Gómez and Roberto Hornero, the GIB coordinator, rises from the need found in the access to all types of mobile device groups, which has experienced great prosperity in recent years. years

Source link