Enhancing epileptic seizure detection via augmentation of electroencephalography (EEG) signals using a single-transistor chaotic oscillator

There are three main zip files for the experimental recordings. The first, circuit_8hz_zenodo, contains oscilloscope images along with the figures generated for Fig. 15. The second, data_without_8hz_zenodo, includes various EEG periods without augmentation, organized into three folders: After (post-ictal signals from 43 patients, named a_00.csv to a_42.csv), Before (pre-ictal signals from 43 patients, named b_00.csv to b_42.csv), and During (ictal signals from 43 patients, named d_00.csv to d_42.csv). In these files, the raw signals are stored in the first column, while the alpha band signals are in the second column. The third zip file, aug_8hz_new_zenodo_1, contains EEG periods with augmentation, also organized into three folders: After_band_Rvalues, Before_band_Rvalues, and During_band_Rvalues, each holding signals from 43 patients with filenames ranging from a_00.csv to a_42.csv, b_00.csv to b_42.csv, and d_00.csv to d_42.csv respectively. In this dataset, two bands are considered: Alpha and Raw. The R-values correspond to different resistances: R020 (20 Ω), R100 (100 Ω), R250 (250 Ω), R464 (464 Ω), and R10000 (10 kΩ). Each CSV file consists of three columns: the first for the alpha band signals, the second for the circuit output (uC1), and the third for the raw signals. Acknowledgements: L.M. gratefully acknowledges the support of the "Hundred Talents" program of the University of Electronic Science and Technology of China, of the "Outstanding Young Talents Pro- gram (Overseas)" program of the National Natural Science Foundation of China, and of the talent programs of the Sichuan province and Chengdu municipality. Competing Interests: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Ludovico Minati and Natsue Yoshimura have patent #PCT application no. WO2021019776A1 and Japanese patent P2022-551370A, priority to PCT/JP2019/030295, for an inven- tion named “Brain–computer interface system suitable for syn- chronizing one or more nonlinear dynamical systems with the brain activity of a person” issued to the Tokyo Institute of Tech- nology. The claims of said invention, however, specifically re- quire the presence of a classifier of imaginary actions suitable for emitting commands to execute physical actions, whereas the present work is more widely applicable to situations where such elements are not necessarily present.本实验记录数据集包含三个核心压缩包文件。 第一个压缩包为circuit_8hz_zenodo，内含示波器图像与用于生成图15的相关配图。 第二个压缩包为data_without_8hz_zenodo，包含未经过数据增强的多段脑电图（Electroencephalogram, EEG）信号时段，分为三个子文件夹：After（43例患者的发作后信号，命名为a_00.csv至a_42.csv）、Before（43例患者的发作前信号，命名为b_00.csv至b_42.csv）以及During（43例患者的发作期信号，命名为d_00.csv至d_42.csv）。上述文件中，原始信号存储于第一列，α波段（Alpha）信号存储于第二列。 第三个压缩包为aug_8hz_new_zenodo_1，内含经过数据增强的脑电图信号时段，同样分为三个子文件夹：After_band_Rvalues、Before_band_Rvalues以及During_band_Rvalues。每个子文件夹分别包含43例患者的信号，文件名依次为a_00.csv至a_42.csv、b_00.csv至b_42.csv以及d_00.csv至d_42.csv。 本数据集涵盖两类信号频段：α波段（Alpha）与原始信号（Raw）。其中R值对应不同的电阻参数：R020（20 Ω）、R100（100 Ω）、R250（250 Ω）、R464（464 Ω）以及R10000（10 kΩ）。每个CSV文件均包含三列：第一列为α波段信号，第二列为电路输出（uC1），第三列为原始信号。 致谢：L.M. 衷心感谢电子科技大学“百人计划”项目、国家自然科学基金“优秀青年人才（海外）”项目，以及四川省与成都市人才计划的资助。 利益冲突：作者声明存在以下可能被视为潜在利益冲突的财务利益或个人关系：Ludovico Minati与Natsue Yoshimura拥有专利申请WO2021019776A1（对应PCT申请号PCT/JP2019/030295的优先权）以及日本专利P2022-551370A，该专利名称为“适用于将一个或多个非线性动力学系统与个体大脑活动同步的脑机接口系统”，专利权归属于东京工业大学。不过，该专利的权利要求明确要求配备用于发出执行躯体动作指令的想象动作分类器，而本研究的适用范围更广，无需此类组件。