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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">I.P. Pavlov Journal of Higher Nervous Activity</journal-id><journal-title-group><journal-title xml:lang="en">I.P. Pavlov Journal of Higher Nervous Activity</journal-title><trans-title-group xml:lang="ru"><trans-title>Журнал высшей нервной деятельности им. И.П. Павлова</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0044-4677</issn><issn publication-format="electronic">3034-5316</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">652089</article-id><article-id pub-id-type="doi">10.31857/S0044467724030049</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ФИЗИОЛОГИЯ ВЫСШЕЙ НЕРВНОЙ (КОГНИТИВНОЙ) &#13;
ДЕЯТЕЛЬНОСТИ ЧЕЛОВЕКА</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ФИЗИОЛОГИЯ ВЫСШЕЙ НЕРВНОЙ (КОГНИТИВНОЙ) ДЕЯТЕЛЬНОСТИ ЧЕЛОВЕКА</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Identification of neurophysiological markers of interoceptive signals using the event-related potential technique</article-title><trans-title-group xml:lang="ru"><trans-title>Выявление нейрофизиологических маркеров обработки интрацептивных сигналов с помощью метода связанных с событиями потенциалов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Slovenko</surname><given-names>E. D.</given-names></name><name xml:lang="ru"><surname>Словенко</surname><given-names>Е. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ekaterinaslovenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sysoeva</surname><given-names>O. V.</given-names></name><name xml:lang="ru"><surname>Сысоева</surname><given-names>О. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ekaterinaslovenko@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Higher Nervous Activity and Neurophysiology of RAS</institution></aff><aff><institution xml:lang="ru">ФГБУН Институт высшей нервной деятельности и нейрофизиологии РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Sirius University of Science and Technology</institution></aff><aff><institution xml:lang="ru">Научно-технологический университет “Сириус”</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-10-24" publication-format="electronic"><day>24</day><month>10</month><year>2024</year></pub-date><volume>74</volume><issue>3</issue><fpage>297</fpage><lpage>310</lpage><history><date date-type="received" iso-8601-date="2025-02-02"><day>02</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://innoscience.ru/0044-4677/article/view/652089">https://innoscience.ru/0044-4677/article/view/652089</self-uri><abstract xml:lang="en"><p>The paper is devoted to presentation and assessment of the algorithm for extraction of heartbeat evoked potential (HEP) using the independent component analysis (ICA). The algorithm includes simultaneous recording of electroencephalogram (EEG) and photoplethysmogram (PPG), selection the EEG-epochs, related to the peak of the PPG pulse wave, separation of cardiac and brain activity in the epochs using the independent component analysis (ICA), synchronization the epochs with the R-wave of the cardiogram. Current source density (CSD) transformation was applied to establish the localization of the extracted potential. The algorithm was tested on 21 subjects and revealed a characteristic increase in evoked potential amplitude between 0 and 400 ms after a heartbeat.</p> <p>Application of independent component analysis and spatial filtering to EEG epochs, synchronized with PPG recording of heartbeat, allows to extract the heartbeat evoked potential, separately from cardiac field artifact.</p></abstract><trans-abstract xml:lang="ru"><p>Работа посвящена представлению и оценке работы алгоритма выделения мозгового вызванного потенциала, связанного с сердцебиением (ВПС), с помощью метода независимых компонент. Алгоритм включает одновременную регистрацию электроэнцефалограммы (ЭЭГ) и фотоплетизмограммы (ФПГ), выделение из ЭЭГ фрагментов, соответствующих пику пульсовой волны ФПГ, удаление из полученных фрагментов кардиогенной активности с помощью метода независимых компонент (МНК), синхронизацию фрагментов с R-зубцом кардиограммы. Для уточнения локализации источника полученного потенциала применен пространственный фильтр “current source density” (CSD). Алгоритм был апробирован на 21 участнике эксперимента и выявил характерное повышение амплитуды потенциала в промежутке от 0 до 400 мс после удара сердца — ВПС.</p> <p>Таким образом, применение методов независимых компонент и пространственной фильтрации к ЭЭГ-фрагментам, синхронизированным с ФПГ, позволяет выделить мозговой вызванный потенциал, связанный с ударом сердца, независимый от собственно сердечной активности, регистрируемой скальповыми отведениями.</p></trans-abstract><kwd-group xml:lang="en"><kwd>heartbeat evoked potential</kwd><kwd>independent component analysis</kwd><kwd>EEG</kwd><kwd>PPG</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вызванный потенциал</kwd><kwd>связанный с сердцебиением</kwd><kwd>метод независимых компонент</kwd><kwd>ЭЭГ</kwd><kwd>ФПГ</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Российский научный фонд</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Science Foundation</institution></institution-wrap></funding-source><award-id>22-18-00676</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Abtahi F., Seoane F., Lindecrantz K., Löfgren N. 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