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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vavilov</journal-id><journal-title-group><journal-title xml:lang="ru">Вавиловский журнал генетики и селекции</journal-title><trans-title-group xml:lang="en"><trans-title>Vavilov Journal of Genetics and Breeding</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2500-3259</issn><publisher><publisher-name>Institute of Cytology and Genetics of Siberian Branch of the RAS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18699/VJGB-23-98</article-id><article-id custom-type="elpub" pub-id-type="custom">vavilov-3985</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МЕТОДЫ ГЛУБОКОГО МАШИННОГО ОБУЧЕНИЯ ДЛЯ БИОИНФОРМАТИКИ И СИСТЕМНОЙ БИОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>DEEP LEARNING METHODS IN BIOINFORMATICS AND SYSTEMS BIOLOGY</subject></subj-group></article-categories><title-group><article-title>Сверточные нейронные сети  для классификации по данным ЭЭГ здоровых людей, практикующих или не практикующих медитацию</article-title><trans-title-group xml:lang="en"><trans-title>Convolutional neural networks for classifying healthy individuals practicing or not practicing meditation according to the EEG data</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фу</surname><given-names>С.</given-names></name><name name-style="western" xml:lang="en"><surname>Fu</surname><given-names>X.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Таможников</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Tamozhnikov</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6789-2953</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сапрыгин</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Saprygin</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Истомина</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Istomina</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Клемешова</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Klemeshova</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3514-2901</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савостьянов</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Savostyanov</surname><given-names>A.  N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><email xlink:type="simple">a-sav@mail.ru</email><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Новосибирский национальный исследовательский государственный университет<country>Россия</country></aff><aff xml:lang="en">Novosibirsk State University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Научно-исследовательский институт нейронаук и медицины<country>Россия</country></aff><aff xml:lang="en">Scientific Research Institute of Neurosciences and Medicine<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Научно-исследовательский институт нейронаук и медицины; Федеральный исследовательский центр Институт цитологии и генетики Сибирского отделения Российской академии наук<country>Россия</country></aff><aff xml:lang="en">Scientific Research Institute of Neurosciences and Medicine; Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru">Федеральный исследовательский центр Институт цитологии и генетики Сибирского отделения Российской академии наук<country>Россия</country></aff><aff xml:lang="en">Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru">Новосибирский национальный исследовательский государственный университет; Научно-исследовательский институт нейронаук и медицины; Федеральный исследовательский центр Институт цитологии и генетики Сибирского отделения Российской академии наук<country>Россия</country></aff><aff xml:lang="en">Novosibirsk State University; Scientific Research Institute of Neurosciences and Medicine; Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>11</day><month>12</month><year>2023</year></pub-date><volume>27</volume><issue>7</issue><fpage>851</fpage><lpage>858</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Фу С., Таможников С.С., Сапрыгин А.Е., Истомина Н.А., Клемешова Д.И., Савостьянов А.Н., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Фу С., Таможников С.С., Сапрыгин А.Е., Истомина Н.А., Клемешова Д.И., Савостьянов А.Н.</copyright-holder><copyright-holder xml:lang="en">Fu X., Tamozhnikov S.S., Saprygin A.E., Istomina N.A., Klemeshova A.N., Savostyanov A.N.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vavilov.elpub.ru/jour/article/view/3985">https://vavilov.elpub.ru/jour/article/view/3985</self-uri><abstract><p>В настоящее время разработка объективных методик для оценки уровня стресса является чрезвычайно актуальной задачей прикладной нейронауки. Анализ электроэнцефалограммы (ЭЭГ), записанной в условиях выполнения заданий на самоконтроль поведения, может служить основой для разработки тестовых методик, позволяющих классифицировать людей по уровню стресса. Хорошо известно, что одним из следствий медитационной практики является выработка у участников навыков произвольного контроля над собственным ментальным состоянием за счет повышенной концентрации внимания на самом себе. На фоне медитационной практики часто происходит снижение общего уровня тревожности и стресса. Целью нашего исследования было разработать, обучить и протестировать сверточную нейронную сеть, способную классифицировать людей на группы участвующих или не участвующих в медитационной практике на основе анализа вызванных потенциалов головного мозга, записанных при выполнении заданий парадигмы стоп-сигнал. Были разработаны четыре архитектуры неглубоких сверточных сетей, которые были обучены и протестированы на выборке из 100 человек (51 медитатор и 49 не-медитатор). В дальнейшем все структуры были дополнительно протестированы на независимой выборке в 25 человек. Установлено, что структура, использующая одномерный сверточный слой, который объединяет слой и двуслойную полностью подключенную сеть, показала наилучшие результаты работы в имитационных тестах. Однако эта модель была часто подвержена переобучению из-за ограничения размера отображения набора данных. Явление переобучения было смягчено при помощи изменения структуры и масштаба модели, параметров сети инициализации, регуляризации, случайной деактивации (dropout) и гиперпараметров скрининга перекрестной проверки. В итоге нами получена модель, которая показала 82 % точность в классификации людей на подгруппы. Можно ожидать, что использование таких моделей окажется эффективным методом для оценки уровня стресса и предрасположенности к тревожным и депрессивным расстройствам в других группах испытуемых.</p></abstract><trans-abstract xml:lang="en"><p>The development of objective methods for assessing stress levels is an important task of applied neuroscience. Analysis of EEG recorded as part of a behavioral self-control program can serve as the basis for the development of test methods that allow classifying people by stress level. It is well known that participation in meditation practices leads to the development of skills of voluntary self-control over the individual’s mental state due to an increased concentration of attention to themselves. As a consequence of meditation practices, participants can reduce overall anxiety and stress levels. The aim of our study was to develop, train and test a convolutional neural network capable of classifying individuals into groups of practitioners and non-practitioners of meditation by analysis of eventrelated brain potentials recorded during stop-signal paradigm. Four non-deep convolutional network architectures were developed, trained and tested on samples of 100 people (51 meditators and 49 non-meditators). Subsequently, all structures were additionally tested on an independent sample of 25 people. It was found that a structure using a one-dimensional convolutional layer combining the layer and a two-layer fully connected network showed the best performance in simulation tests. However, this model was often subject to overfitting due to the limitation of the display size of the data set. The phenomenon of overfitting was mitigated by changing the structure and scale of the model, initialization network parameters, regularization, random deactivation (dropout) and hyperparameters of cross-validation screening. The resulting model showed 82 % accuracy in classifying people into subgroups. The use of such models can be expected to be effective in assessing stress levels and inclination to anxiety and depression disorders in other groups of subjects.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сверточные нейронные сети</kwd><kwd>ЭЭГ</kwd><kwd>вызванные потенциалы мозга</kwd><kwd>медитация</kwd><kwd>парадигма стоп-сигнал</kwd></kwd-group><kwd-group xml:lang="en"><kwd>convolutional neural networks</kwd><kwd>EEG</kwd><kwd>event-related brain potentials</kwd><kwd>meditation</kwd><kwd>stop-signal paradigm</kwd></kwd-group><funding-group xml:lang="en"><funding-statement>The development and testing of the neural network and the collection of EEG data from meditators was carried out as part of the budget project of the ICG SB RAS No. FWNR-2022-0020. The collection of EEG data from non-meditators, as well as the preprocessing of all EEG data, was carried out as part of the project of the Russian Scientific Foundation No. 22-15-00142 “fMRI and EEG correlates of the focus of attention on oneself as a factor of propensity to affective disorders”.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Aftanas L., Golosheykin S. Impact of regular meditation practice on EEG activity at rest and during evoked negative emotions. Int. J. Neurosci. 2005;115(6):893­909. DOI 10.1080/00207450590897969</mixed-citation><mixed-citation xml:lang="en">Aftanas L., Golosheykin S. Impact of regular meditation practice on EEG activity at rest and during evoked negative emotions. Int. J. Neurosci. 2005;115(6):893­909. 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