Modelling Brain Connectivity Networks by Graph Embedding for Dyslexia Diagnosis

• URL: http://arxiv.org/abs/2104.05497v1
• Date: Mon, 12 Apr 2021 14:27:29 GMT
• Title: Modelling Brain Connectivity Networks by Graph Embedding for Dyslexia Diagnosis
• Authors: Marco A. Formoso, Andr\'es Ortiz, Francisco J. Mart\'inez-Murcia, Nicol\'as Gallego-Molina, Juan L. Luque
• Abstract summary: In this work, intra and inter electrode PAC is computed obtaining the relationship among different electrodes used in EEG. The proposed method has been applied to classified EEG samples acquired using specific auditory stimuli in a task designed for dyslexia disorder diagnosis in seven years old children EEG's.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Several methods have been developed to extract information from electroencephalograms (EEG). One of them is Phase-Amplitude Coupling (PAC) which is a type of Cross-Frequency Coupling (CFC) method, consisting in measure the synchronization of phase and amplitude for the different EEG bands and electrodes. This provides information regarding brain areas that are synchronously activated, and eventually, a marker of functional connectivity between these areas. In this work, intra and inter electrode PAC is computed obtaining the relationship among different electrodes used in EEG. The connectivity information is then treated as a graph in which the different nodes are the electrodes and the edges PAC values between them. These structures are embedded to create a feature vector that can be further used to classify multichannel EEG samples. The proposed method has been applied to classified EEG samples acquired using specific auditory stimuli in a task designed for dyslexia disorder diagnosis in seven years old children EEG's. The proposed method provides AUC values up to 0.73 and allows selecting the most discriminant electrodes and EEG bands.

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