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首页> 外文会议>2015 IEEE Student Symposium in Biomedical Engineering amp; Sciences >EEG average FFT index for dyslexic children with writing disorder
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EEG average FFT index for dyslexic children with writing disorder

机译：阅读障碍的儿童写作障碍的脑电平均FFT指数

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Dyslexia is a neurological disorder that needs to be detected at an early stage for recovery through efficient intervention. It is defined as difficulty with learning due to impairment to the left hemisphere of the brain associated with language processing. It is often misinterpreted as being lazy, which has a negative impact on the self-confidence of the children. Electroencephalography (EEG) is the recording of electrical fields produced by neuronal activity obtained from the scalp surface after being picked up by metal electrodes and conductive gel. Most of the previous works on dyslexia are based on subjective and psychometric methods, focused on reading and spelling mainly. Our research here is a preliminary study to investigate if EEG average FFT index is able to provide signature characteristics for dyslexic children with writing disorder, where no previous attempt has been reported. In this study, EEG signals from eight electrodes along the neuropathway for writing were sampled. Daubechies 8 (DB8) wavelet function and Fast Fourier Transform (FFT) were used to extract the frequency content features from EEG signals. EEG of poor and capable dyslexic is recorded to examine the brain activation regions in writing sentences and nonsense sentences. Differences in hemispheric activation are found in writing sentences and nonsense sentences, between poor and capable dyslexic.
机译：阅读障碍是一种神经系统疾病，需要尽早发现以通过有效干预来恢复。它被定义为由于语言处理相关的大脑左半球受损而导致学习困难。它常常被误解为懒惰，这对孩子的自信心产生了负面影响。脑电图（EEG）是记录由金属电极和导电胶拾取后从头皮表面获得的神经元活动产生的电场的记录。以前有关诵读困难的大多数著作都是基于主观和心理计量学方法，主要侧重于阅读和拼写。我们的研究是一项初步研究，旨在调查脑电图的平均FFT指数是否能够为患有书写障碍的阅读障碍儿童提供签名特征，而此前尚未有报道。在这项研究中，对来自沿神经通路进行书写的八个电极的EEG信号进行了采样。使用Daubechies 8（DB8）小波函数和快速傅立叶变换（FFT）从EEG信号中提取频率内容特征。记录有能力较弱的阅读障碍者的脑电图，以检查书写句子和无意义句子中的大脑激活区域。在能力较弱的阅读障碍者中，在书写句子和无意义的句子中发现了半球激活的差异。

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