Sensitivity Analysis of the Forward Electroencephalographic Problem Depending on Head Shape Variations
المؤلفون المشاركون
Fragoyiannis, George
Doschoris, Michael
Dassios, George
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2015، العدد 2015 (31 ديسمبر/كانون الأول 2015)، ص ص. 1-14، 14ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2015-02-01
دولة النشر
مصر
عدد الصفحات
14
التخصصات الرئيسية
الملخص EN
A crucial aspect in clinical practice is the knowledge of whether Electroencephalographic (EEG) measurements can be assigned to the functioning of the brain or to geometrical deviations of the human cranium.
The present work is focused on continuing to advance understanding on how sensitive the solution of the forward EEG problem is in regard to the geometry of the head.
This has been achieved by developing a novel analytic algorithm by performing a perturbation analysis in the linear regime using a homogenous spherical model.
Notably, the suggested procedure provides a criterion which recognizes whether surface deformations will have an impact on EEG recordings.
The presented deformations represent two major cases: (1) acquired alterations of the surface inflicted by external forces and (2) deformations of the upper part of the human head where EEG signals are recorded.
Our results illustrate that neglecting geometric variations present on the heads surface leads to errors in the recorded EEG measurements less than 2%.
However, for severe instances of deformations combined with cortical brain activity in the vicinity of the distortion site, the errors rise to almost 25%.
Therefore, the accurate description of the head shape plays an important role in understanding the forward EEG problem only in these cases.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Doschoris, Michael& Dassios, George& Fragoyiannis, George. 2015. Sensitivity Analysis of the Forward Electroencephalographic Problem Depending on Head Shape Variations. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1074276
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Doschoris, Michael…[et al.]. Sensitivity Analysis of the Forward Electroencephalographic Problem Depending on Head Shape Variations. Mathematical Problems in Engineering No. 2015 (2015), pp.1-14.
https://search.emarefa.net/detail/BIM-1074276
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Doschoris, Michael& Dassios, George& Fragoyiannis, George. Sensitivity Analysis of the Forward Electroencephalographic Problem Depending on Head Shape Variations. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1074276
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1074276
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