Exploring the Relationship between Brain Hemisphere States and Frequency Bands through Deep Learning Optimization Techniques

• URL: http://arxiv.org/abs/2509.14078v1
• Date: Wed, 17 Sep 2025 15:26:45 GMT
• Title: Exploring the Relationship between Brain Hemisphere States and Frequency Bands through Deep Learning Optimization Techniques
• Authors: Robiul Islam, Dmitry I. Ignatov, Karl Kaberg, Roman Nabatchikov,
• Abstract summary: This study investigates performance across EEG frequency bands using various convolutions and evaluates efficient class prediction for the left and right hemispheres.<n>Adagrad and RMSprops consistently perform well across different frequency bands, with Adadelta exhibiting robust performance in cross-model evaluations.<n>The deep dense network shows competitive performance in learning complex patterns, whereas the shallow three-layer network, sometimes being less accurate, provides computational efficiency.
• Score: 3.966519779235704
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: This study investigates classifier performance across EEG frequency bands using various optimizers and evaluates efficient class prediction for the left and right hemispheres. Three neural network architectures - a deep dense network, a shallow three-layer network, and a convolutional neural network (CNN) - are implemented and compared using the TensorFlow and PyTorch frameworks. Results indicate that the Adagrad and RMSprop optimizers consistently perform well across different frequency bands, with Adadelta exhibiting robust performance in cross-model evaluations. Specifically, Adagrad excels in the beta band, while RMSprop achieves superior performance in the gamma band. Conversely, SGD and FTRL exhibit inconsistent performance. Among the models, the CNN demonstrates the second highest accuracy, particularly in capturing spatial features of EEG data. The deep dense network shows competitive performance in learning complex patterns, whereas the shallow three-layer network, sometimes being less accurate, provides computational efficiency. SHAP (Shapley Additive Explanations) plots are employed to identify efficient class prediction, revealing nuanced contributions of EEG frequency bands to model accuracy. Overall, the study highlights the importance of optimizer selection, model architecture, and EEG frequency band analysis in enhancing classifier performance and understanding feature importance in neuroimaging-based classification tasks.

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