Five Shades of Grey: Exploring Quintary m-Sequences for More User-Friendly c-VEP-Based BCIs
المؤلفون المشاركون
Gembler, Felix
Volosyak, Ivan
Rezeika, Aya
Benda, Mihaly
المصدر
Computational Intelligence and Neuroscience
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-03-10
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
Responsive EEG-based communication systems have been implemented with brain-computer interfaces (BCIs) based on code-modulated visual evoked potentials (c-VEPs).
The BCI targets are typically encoded with binary m-sequences because of their autocorrelation property; the digits one and zero correspond to different target colours (usually black and white), which are updated every frame according to the code.
While binary flickering patterns enable high communication speeds, they are perceived as annoying by many users.
Quintary (base 5) m-sequences, where the five digits correspond to different shades of grey, may yield a more subtle visual stimulation.
This study explores two approaches to reduce the flickering sensation: (1) adjusting the flickering speed via refresh rates and (2) applying quintary codes.
In this respect, six flickering modalities are tested using an eight-target spelling application: binary patterns and quintary patterns generated with 60, 120, and 240 Hz refresh rates.
This study was conducted with 18 nondisabled participants.
For all six flickering modalities, a copy-spelling task was conducted.
According to questionnaire results, most users favoured the proposed quintary over the binary pattern while achieving similar performance to it (no statistical differences between the patterns were found).
Mean accuracies across participants were above 95%, and information transfer rates were above 55 bits/min for all patterns and flickering speeds.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Gembler, Felix& Rezeika, Aya& Benda, Mihaly& Volosyak, Ivan. 2020. Five Shades of Grey: Exploring Quintary m-Sequences for More User-Friendly c-VEP-Based BCIs. Computational Intelligence and Neuroscience،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1138827
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Gembler, Felix…[et al.]. Five Shades of Grey: Exploring Quintary m-Sequences for More User-Friendly c-VEP-Based BCIs. Computational Intelligence and Neuroscience No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1138827
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Gembler, Felix& Rezeika, Aya& Benda, Mihaly& Volosyak, Ivan. Five Shades of Grey: Exploring Quintary m-Sequences for More User-Friendly c-VEP-Based BCIs. Computational Intelligence and Neuroscience. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1138827
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1138827
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر