- Natural and Engineering Sciences
- Vol: 2 Issue: 2
- Online LDA based brain-computer interface system to aid disabled people
Online LDA based brain-computer interface system to aid disabled people
Authors : Apdullah Yayik, Yakup Kutlu
Pages : 37-49
Doi:10.28978/nesciences.328908
View : 8 | Download : 6
Publication Date : 2017-07-03
Article Type : Research
Abstract :This paper aims to develop brain-computer interface system based on electroencephalography that can aid disabled people in daily life. The system relies on one of the most effective event-related potential wave, P300, which can be elicited by oddball paradigm. Developed application has a basic interaction tool that enables disabled people to convey their needs to other people selecting related objects. These objects pseudo-randomly flash in a visual interface on computer screen. The user must focus on related object to convey desired needs. The system can convey desired needs correctly by detecting P300 wave in acquired 14-channel EEG signal and classifying using linear discriminant analysis classifier just in 15 seconds. Experiments have been carried out on 19 volunteers to validate developed BCI system. As a result, accuracy rate of 90.83% is achieved in online performance.Keywords : Brain-computer interface, P3 wave, Event-related potentials