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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="other" 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">652037</article-id><article-id pub-id-type="doi">10.31857/S0044467723030139</article-id><article-id pub-id-type="edn">TTRRJK</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></subject></subj-group></article-categories><title-group><article-title xml:lang="en">BACKGROUND EEG ACTIVITY MEDIATES ASSOCIATIONS BETWEEN BDNF-VAL66MET POLYMORPHISM AND MEMORY DURING AGING</article-title><trans-title-group xml:lang="ru"><trans-title>Фоновая ЭЭГ-активность опосредует ассоциации между BDNF-VAL66MET-полиморфизмом и памятью при старении</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Volf</surname><given-names>N. V.</given-names></name><name xml:lang="ru"><surname>Вольф</surname><given-names>Н. В.</given-names></name></name-alternatives><email>volfnv@neuronm.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Privodnova</surname><given-names>E. Yu.</given-names></name><name xml:lang="ru"><surname>Приводнова</surname><given-names>Е. Ю.</given-names></name></name-alternatives><email>volfnv@neuronm.ru</email><xref ref-type="aff" rid="aff3"/><xref ref-type="aff" rid="aff4"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Scientific-Research Institute of Neurosciences and Medicine</institution></aff><aff><institution xml:lang="ru">Научно-исследовательский институт нейронаук и медицины,</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Novosibirsk State University</institution></aff><aff><institution xml:lang="ru">Новосибирский государственный университет</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Novosibirsk State University</institution></aff><aff><institution xml:lang="ru">Научно-исследовательский институт нейронаук и медицины,</institution></aff></aff-alternatives><aff id="aff4"><institution>Новосибирский государственный университет</institution></aff><pub-date date-type="pub" iso-8601-date="2023-05-01" publication-format="electronic"><day>01</day><month>05</month><year>2023</year></pub-date><volume>73</volume><issue>3</issue><fpage>398</fpage><lpage>410</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 ©; 2023, Н.В. Вольф, Е.Ю. Приводнова</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Н.В. Вольф, Е.Ю. Приводнова</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Н.В. Вольф, Е.Ю. Приводнова</copyright-holder><copyright-holder xml:lang="ru">Н.В. Вольф, Е.Ю. Приводнова</copyright-holder></permissions><self-uri xlink:href="https://innoscience.ru/0044-4677/article/view/652037">https://innoscience.ru/0044-4677/article/view/652037</self-uri><abstract xml:lang="en"><p id="idm45181323455968">Significant heterogeneity in cognitive aging is explained by the influence of both genetic and environmental factors. BDNF (brain-derived neurotrophic factor) is a neurotropic factor involved in the processes of plasticity in the mature brain. Val66Met polymorphism is a functional polymorphism of the BDNF gene, which determines its association with the architectonics and functions of the brain and the efficiency of cognitive functions. The aim of this study was to identify the aging-related features of the relationship between Val66Met polymorphism and the efficiency of verbal memory processes, determined in the dichotic test, as well as with the background oscillatory activity of the brain, recorded with eyes closed in 52 EEG leads. The study involved 235 right-handed young Caucasians (YA, mean age 21.65 years, SD = 3.18) and 141 older (OA, 64.37 years, SD = 6.04). Genetic differences in memory parameters and endophenotypes of EEG activity were found only in OA individuals. In dichotic testing, subjects with the Val/Val genotype reproduced fewer words from the right ear compared to carriers of the Met allele. When analyzing the EEG, genetic differences were found in the focal indicators of asymmetry in the power of the delta, theta, beta 1 and 2 rhythms, and were due to the greater power of the rhythms in the central temporal sections of the right hemisphere compared to the left hemisphere in Val/Val, with the opposite ratio in carriers of the Met allele. For the beta 2 rhythm, similar differences in asymmetry were also characteristic of the parietal-occipital regions of the hemispheres. It was found that indicators of central temporal asymmetry are mediators in the association between BDNF gene polymorphism and memory efficiency. The data obtained for the first time show age-related differences in the effects of the Val/Met BDNF polymorphism on the efficiency of verbal memory and EEG power and suggest possible relationships between these genotype-associated parameters.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181323451840">Значительная гетерогенность когнитивного старения объясняется влиянием как генетических, так и средовых факторов. BDNF (brain-derived neurotrophic factor) – нейротропный фактор, вовлеченный в процессы пластичности зрелого мозга. Val66Met-полиморфизм является функциональным полиморфизмом гена BDNF, что обусловливает его ассоциации с архитектоникой и функциями мозга и эффективностью когнитивных функций. Задачей настоящего исследования было выявить связанные со старением особенности взаимосвязей между Val66Met-полиморфизмом и эффективностью процессов вербальной памяти, определяемой в дихотическом тесте, а также с фоновой осцилляторной активностью мозга, регистрируемой при закрытых глазах в 52 ЭЭГ-отведениях. В исследовании участвовали 235 праворуких европеоидов молодого (МВ, средний возраст 21.65 лет, SD = 3.18) и 141 старшего возраста (СВ, средний возраст 64.37 лет, SD = 6.04). Ассоциированные с BDNF-Val66Met-полиморфизмом различия в показателях памяти и паттернах ЭЭГ-активности выявлены только у лиц СВ. При дихотическом тестировании испытуемые СВ с генотипом Val/Val воспроизводили меньше слов с правого уха по сравнению с носителями Met-аллеля. При анализе ЭЭГ различия между генотипами обнаружены в фокальных показателях асимметрии мощности дельта-, тета-, бета1- и бета2-ритмов и были обусловлены большей мощностью ритмов в центрально-темпоральных отделах правого по сравнению с левым полушарием у Val/Val при обратном соотношении у носителей Met-аллеля. Для бета2-ритма аналогичные различия в асимметрии были характерны также для париетально-окципитальных областей полушарий. Обнаружено, что показатели центрально-темпоральной асимметрии являются медиаторами в ассоциации между полиморфизмом гена BDNF и эффективностью памяти. Полученные данные впервые показывают возрастные различия в эффектах Val66Met-полиморфизма BDNF в отношении эффективности вербальной памяти и мощности ЭЭГ и указывают на возможные взаимосвязи между этими ассоциированными с генотипом параметрами.</p></trans-abstract><kwd-group xml:lang="en"><kwd>BDNF</kwd><kwd>Val66Met polymorphism</kwd><kwd>verbal memory</kwd><kwd>dichotic test</kwd><kwd>baseline EEG</kwd><kwd>aging</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>BDNF</kwd><kwd>Val66Met-полиморфизм</kwd><kwd>вербальная память</kwd><kwd>дихотический тест</kwd><kwd>фоновая ЭЭГ</kwd><kwd>старение</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Вольф Н.В. Половые различия функциональной организации процессов полушарной обработки речевой информации. Издательство ЦББР. Ростов-на-Дону. 2000. С. 239.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Вольф Н.В., Приводнова Е.Ю. 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