Kalaivani M, Ravindran G
Centre for Medical Electronics, Anna University, Chennai, India.
Annu Int Conf IEEE Eng Med Biol Soc. 2009;2009:3441-4. doi: 10.1109/IEMBS.2009.5334638.
Cross-modality is the development of cross link between the modalities in the brain following sensory deprivation in the early stage. Cross modality analysis was previously done with fMRI, MEG and PET images for studying the changes in cerebral activities. Instead of these imaging techniques, this work involves in deriving self similarity parameter using Detrended Fluctuation Analysis of EEG from blind and blind folded normal individuals. This paper presents a novel technique of nonlinear spectral analysis to extract the information from electro encephalograms of humans for the detection of cross- modality existence in blind subjects.
跨模态是指在早期感觉剥夺后,大脑中不同感觉模态之间交叉连接的发展。之前曾使用功能磁共振成像(fMRI)、脑磁图(MEG)和正电子发射断层扫描(PET)图像进行跨模态分析,以研究大脑活动的变化。与这些成像技术不同,这项工作涉及对盲人和蒙眼正常人的脑电图进行去趋势波动分析,以推导自相似参数。本文提出了一种非线性频谱分析的新技术,用于从人类脑电图中提取信息,以检测盲人受试者中跨模态的存在。