腦電波訊號源估測

English | 正體中文 | 简体中文 | Items with full text/Total items : 45073/58249 (77%)
Visitors : 2392143 Online Users : 159

RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.

Home ‧ Login ‧ Upload ‧ Help ‧ About ‧ Administer

TMUIR > Administration > Department of Information > MIST > Item 987654321/21697

Please use this identifier to cite or link to this item: http://libir.tmu.edu.tw/handle/987654321/21697

Title:	腦電波訊號源估測 Electroencephalogram source estimation
Authors:	孫光天;許明哲 Koun-Tem Sun;Ming-Che Hsu
Date:	2007
Issue Date:	2009-11-27 14:50:44 (UTC+8)
Abstract:	腦電波儀(EEG)是常常用來進行腦功能研究的工具之一，因為它具有相當高的取樣頻率以及低廉的價位，本研究中，我們將開發出一套系統，把EEG獲得的頭皮電位資料，經過電腦處理，來估測目標腦波訊號源的位置，本研究所採用的方法，包括了簡單的頭模型(球模型)，正向模型的計算，以及最後逆向問題計算。其正向模型是假設腦電波訊號源的位置和方向是已知的，然後推導出頭皮的電位。逆向問題則是由已知的頭皮電極點電位資料求出腦電波訊號源的位置及方向；最後以臨床實驗:左右手分別出力握拳，來檢驗我們系統所計算的位置是否在運動神經區。實驗結果顯示，我們所開發系統的正確率可達56%，已具有初步的實用性。 Electroencephalogram (EEG) is one of the tools widely used in functional brain studies due to its high sampling rate (temporal resolution) and low cost. In this research, we proposed a system which used the scalp potential data recorded by EEG to predict the location of the target brain wave source. The techniques, used in this experiment, included the simple head model, the calculation of the forward model and the resolution of the inverse problem. The forward model is based on the hypothesis that both the brain wave source location and the orientation are known, which can be used to infer and predict the scalp potential. As for the inverse problem, the location and the orientation of brain wave source can be measured from the known scalp electrode data. Through the clinical trial, we may examine the system to see whether the location is shown in the motor area of brain by using two hands to hold firmly. The results indicate that the accuracy rate of this system can be up to 56%, which achieves a preliminary practicability.
Appears in Collections:	[Department of Information] MIST

Files in This Item:

File	Description	Size	Format
021_定稿.pdf		2330Kb	Adobe PDF	909	View/Open
021_定稿.ps		71987Kb	Postscript	36	View/Open

著作權聲明 Copyright Notice

本平台之數位內容為臺北醫學大學所收錄之機構典藏，包含體系內各式學術著作及學術產出。秉持開放取用的精神，提供使用者進行資料檢索、下載與取用，惟仍請適度、合理地於合法範圍內使用本平台之內容，以尊重著作權人之權益。商業上之利用，請先取得著作權人之授權。
The digital content on this platform is part of the Taipei Medical University Institutional Repository, featuring various academic works and outputs from the institution. It offers free access to academic research and public education for non-commercial use. Please use the content appropriately and within legal boundaries to respect copyright owners' rights. For commercial use, please obtain prior authorization from the copyright owner.
瀏覽或使用本平台，視同使用者已完全接受並瞭解聲明中所有規範、中華民國相關法規、一切國際網路規定及使用慣例，並不得為任何不法目的使用TMUIR。
By utilising the platform, users are deemed to have fully accepted and understood all the regulations set out in the statement, relevant laws of the Republic of China, all international internet regulations, and usage conventions. Furthermore, users must not use TMUIR for any illegal purposes.
本平台盡力防止侵害著作權人之權益。若發現本平台之數位內容有侵害著作權人權益情事者，煩請權利人通知本平台維護人員([email protected])，將立即採取移除該數位著作等補救措施。
TMUIR is made to protect the interests of copyright owners. If you believe that any material on the website infringes copyright, please contact our staff([email protected]). We will remove the work from the repository.

Loading...