Changes in EEG Power Spectral Density and Cortical Connectivity in Healthy and Tetraplegic Patients during a Motor Imagery Task
المؤلفون المشاركون
Babiloni, Fabio
Astolfi, Laura
Ursino, Mauro
Zavaglia, Melissa
Cona, Filippo
المصدر
Computational Intelligence and Neuroscience
العدد
المجلد 2009، العدد 2009 (31 ديسمبر/كانون الأول 2009)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2009-06-24
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
Knowledge of brain connectivity is an important aspect of modern neuroscience, to understand how the brain realizes its functions.
In this work, neural mass models including four groups of excitatory and inhibitory neurons are used to estimate the connectivity among three cortical regions of interests (ROIs) during a foot-movement task.
Real data were obtained via high-resolution scalp EEGs on two populations: healthy volunteers and tetraplegic patients.
A 3-shell Boundary Element Model of the head was used to estimate the cortical current density and to derive cortical EEGs in the three ROIs.
The model assumes that each ROI can generate an intrinsic rhythm in the beta range, and receives rhythms in the alpha and gamma ranges from other two regions.
Connectivity strengths among the ROIs were estimated by means of an original genetic algorithm that tries to minimize several cost functions of the difference between real and model power spectral densities.
Results show that the stronger connections are those from the cingulate cortex to the primary and supplementary motor areas, thus emphasizing the pivotal role played by the CMA_L during the task.
Tetraplegic patients exhibit higher connectivity strength on average, with significant statistical differences in some connections.
The results are commented and virtues and limitations of the proposed method discussed.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Cona, Filippo& Zavaglia, Melissa& Astolfi, Laura& Babiloni, Fabio& Ursino, Mauro. 2009. Changes in EEG Power Spectral Density and Cortical Connectivity in Healthy and Tetraplegic Patients during a Motor Imagery Task. Computational Intelligence and Neuroscience،Vol. 2009, no. 2009, pp.1-12.
https://search.emarefa.net/detail/BIM-459837
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Cona, Filippo…[et al.]. Changes in EEG Power Spectral Density and Cortical Connectivity in Healthy and Tetraplegic Patients during a Motor Imagery Task. Computational Intelligence and Neuroscience No. 2009 (2009), pp.1-12.
https://search.emarefa.net/detail/BIM-459837
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Cona, Filippo& Zavaglia, Melissa& Astolfi, Laura& Babiloni, Fabio& Ursino, Mauro. Changes in EEG Power Spectral Density and Cortical Connectivity in Healthy and Tetraplegic Patients during a Motor Imagery Task. Computational Intelligence and Neuroscience. 2009. Vol. 2009, no. 2009, pp.1-12.
https://search.emarefa.net/detail/BIM-459837
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-459837
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