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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Biological Physics and Chemisrty</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Biological Physics and Chemisrty</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2499-9962</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">54659</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Общая биофизика</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>General biophysics</subject>
    </subj-group>
    <subj-group>
     <subject>Общая биофизика</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Solving the inverse EEG problem and integral power estimation in the resting rhythm analysis probleme</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Решение обратной задачи ЭЭГ и интегральная оценка мощности в задаче анализа ритмов покоя</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Охрименко</surname>
       <given-names>Г С</given-names>
      </name>
      <name xml:lang="en">
       <surname>Okhrimenko</surname>
       <given-names>G S</given-names>
      </name>
     </name-alternatives>
     <email>galina-oxp@mail.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Каримова</surname>
       <given-names>Е Д</given-names>
      </name>
      <name xml:lang="en">
       <surname>Karimova</surname>
       <given-names>E D</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Московский государственный университет имени М.В. Ломоносова</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Lomonosov Moscow State University</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Институт высшей нервной деятельности и нейрофизиологии РАН</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Higher Nervous Activity and Neurophysiology of the RAS</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2021-09-25T20:22:29+03:00">
    <day>25</day>
    <month>09</month>
    <year>2021</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2021-09-25T20:22:29+03:00">
    <day>25</day>
    <month>09</month>
    <year>2021</year>
   </pub-date>
   <volume>6</volume>
   <issue>3</issue>
   <fpage>371</fpage>
   <lpage>376</lpage>
   <history>
    <date date-type="received" iso-8601-date="2021-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2021</year>
    </date>
    <date date-type="accepted" iso-8601-date="2021-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2021</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54659/view">https://rusjbpc.ru/en/nauka/article/54659/view</self-uri>
   <abstract xml:lang="ru">
    <p>Современное общество уделяет много времени потреблению различного рода медиаматериала, что не может не влиять на функциональное состояние головного мозга. Психологи и нейрофизиологи отмечают важность и необходимость нахождения в состоянии спокойного бодрствования - расслабленное физическое и умственное состояние, в котором человек не сосредоточен ни на чём конкретном. В данной работе рассматриваются изменения интенсивности и локализации ритмов спокойного бодрствования электроэнцефалограммы (тета, альфа и бета) после восприятия информационно-развлекательного видеоконтента и пассивного созерцания природы. С каждым из 16 испытуемых проводилось два эксперимента в разные дни (просмотр развлекательного видеоматериала и видеоряда природы). До и после сессий была произведена запись ЭЭГ в состоянии покоя при открытых и закрытых глазах. Решение обратной задачи ЭЭГ и поиск распределённых источников активности ритмов были реализованы с помощью метода standard low resolution tomography (sLORETA), определение спектральной мощности ритмов ЭЭГ до и после восприятия выполнялся методом быстрого преобразования Фурье. После активного восприятия информационного наполненного контента, интенсивность генераторов альфа-ритма повышалась, а после пассивного созерцания природы - снижалась. Наблюдалась разнонаправленная динамика в двух сессиях в бета-1 и бета-2 диапазонах частот. Распределение и динамика тета-ритма не отличались после активной и пассивной сессии. Проведение статического анализа мощностных характеристик позволило получить следующие результаты: наблюдалось повышение спектральной мощности альфа-ритма после активной сессии с открытыми и закрытыми глазами, а также повышение мощности бета1-ритма после активной сессии в пробе с открытыми глазами.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Modern society devotes a lot of time to the consumption of various kinds of media materials, which cannot but affect the functional state of the brain. Psychologists and neurophysiologists outline the significance and necessity of being in a state of calm wakefulness which is a relaxed physical and mental state when a person is not focused on anything specific. This paper examines the changes in the intensity and localization of the rhythms of calm wakefulness of the electroencephalogram (theta, alpha and beta) after the perception of informative and entertainment video content and passive contemplation of nature. Two experiments were carried out on each of the 16 participants on different days (viewing entertainment video material and a video series of nature). The EEG was recorded at rest with the participants' open and closed eyes before and after the sessions. The solution to the inverse EEG problem and the search for distributed activity sources were implemented using the standard low resolution tomography (sLORETA) method; the determination of the EEG spectral power before and after perception was performed by the Fast Fourier Transform method. After active perception of information-filled content, the intensity of alpha-rhythm generators increased, and after passive contemplation of nature it, conversely, decreased. Multidirectional dynamics was observed in two sessions in the beta-1 and beta-2 frequency ranges. The distribution and dynamics of the theta rhythm did not differ after the active and passive sessions. The statistical analysis of the power characteristics enabled us to obtain the following results: an increase in the spectral power of the alpha rhythm was observed after an active session with the participants' open and closed eyes, as well as an increase in the power of the beta1 rhythm was noted after an active session in the sample with their open eyes.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>ЭЭГ</kwd>
    <kwd>ритмы покоя</kwd>
    <kwd>медиа</kwd>
    <kwd>функциональное состояние</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>EEG</kwd>
    <kwd>rest rhythms</kwd>
    <kwd>media</kwd>
    <kwd>functional state</kwd>
   </kwd-group>
  </article-meta>
 </front>
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