Using Steady State Visually Evoked Potential-Based Brain Computer Interface in Multiple Choice Questions

Öz

Interest in brain computer interface (BCI) technology, which was mostly aimed at paralyzed patients in the first years it was first proposed, is increasing day by day in a wide range of areas ranging from smart home and car applications to the gaming industry. In this study, a steady-state visually evoked potential- based BCI model was developed that enables people to answer multiple-choice questions with only using their thoughts. For this model, an EEG measurement system has been designed with Texas Instrument's ADS1299 chip instead of the commercial electroencephalogram (EEG) devices used in the literature. This study, which is innovative both in terms of the proposed application and in terms of the developed EEG measurement system, provides the opportunity for individuals who have the right to take exams with disability status to answer questions only with their thoughts in the exams they participate in.

Anahtar Kelimeler

• Brain Computer Interface
• EEG
• Steady State Visually Evoked Potential

Çoktan Seçmeli Sorularda Kararlı Durum Görsel Olarak Uyarılmış Potansiyel Tabanlı Beyin Bilgisayar Arayüzü Kullanılması

Öz

Önerildiği ilk yıllarda daha çok felçli hastalara yönelik olan beyin bilgisayar arayüzü (BBA) teknolojisine olan ilgi akıllı ev ve araba uygulamalarından oyun sektörüne uzanan geniş bir yelpazede gün geçtikçe artmaktadır. Bu çalışmada kişilerin sadece düşünceleri ile çoktan seçmeli sorulara yanıt vermelerini olanaklı hale getiren bir kararlı durum görsel olarak uyarılmış potansiyel tabanlı bir BBA modeli geliştirilmiştir. Bu model için literatürde kullanılan ticari elektroensefalogram (EEG) cihazlar yerine Texas Instrument firmasının ADS1299 çipi ile bir EEG ölçüm sistemi tasarlanmıştır. Hem önerilen uygulama bakımından hem de geliştirilen EEG ölçüm sistemi açısından yenilikçi olan bu çalışma; engelli statüsünde sınav hakkı olan bireylerin katıldıkları sınavlarda sadece düşünceleri ile sorulara cevap verme olanağı sağlamış olmaktadır.

Anahtar Kelimeler

• Beyin Bilgisayar Arayüzü
• EEG
• Kararlı Durum Görsel Olarak Uyarılmış Potansiyel

Kaynakça

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