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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">nnp</journal-id><journal-title-group><journal-title xml:lang="en">Neurology, Neuropsychiatry, Psychosomatics</journal-title><trans-title-group xml:lang="ru"><trans-title>Неврология, нейропсихиатрия, психосоматика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-2711</issn><issn pub-type="epub">2310-1342</issn><publisher><publisher-name>"IMA-Press", LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14412/2074-2711-2012-383</article-id><article-id custom-type="elpub" pub-id-type="custom">nnp-123</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="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>A change in the parameters of P300 evoked potentials in relation to the degree of exacerbation of pain syndrome</article-title><trans-title-group xml:lang="ru"><trans-title>Изменение параметров вызванного потенциала Р300 в зависимости от степени обострения болевого синдрома</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>Rachin</surname><given-names>A P</given-names></name><name name-style="western" xml:lang="en"><surname>Rachin</surname><given-names>A P</given-names></name></name-alternatives><email xlink:type="simple">-</email></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Averchenkova</surname><given-names>A A</given-names></name><name name-style="western" xml:lang="en"><surname>Averchenkova</surname><given-names>A A</given-names></name></name-alternatives><email xlink:type="simple">-</email></contrib></contrib-group><pub-date pub-type="collection"><year>2012</year></pub-date><pub-date pub-type="epub"><day>12</day><month>06</month><year>2012</year></pub-date><volume>4</volume><issue>2</issue><issue-title>NO2 (2012)</issue-title><fpage>52</fpage><lpage>55</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Rachin A.P., Averchenkova A.A., 2012</copyright-statement><copyright-year>2012</copyright-year><copyright-holder xml:lang="ru">Rachin A.P., Averchenkova A.A.</copyright-holder><copyright-holder xml:lang="en">Rachin A.P., Averchenkova A.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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://nnp.ima-press.net/nnp/article/view/123">https://nnp.ima-press.net/nnp/article/view/123</self-uri><abstract><p>In chronic pain, the state of suprasegmental brain structures (the cortex, limbic system, truncodiencephalic structures, which form the motivational-affective and cognitive components of pain behavior), actively affects pain afferentation as well. The purpose of the study was to comparatively analyze the parameters and topographic distribution of P300 cognitive evoked potential in patients with lower back pain. Sixty patients aged 22 to 60 years were examined. The authors made their clinical and neurological examinations, collected medical history data, and assessed back pain intensity by a visual analog scale. The findings were compared with the parameters of cognitive evoked potentials (the separating of P300 to count; keystroke in the recognition of significant stimuli; elaboration of a verbal and nonverbal visual stimulation protocol, by using emotionally significant stimuli). The processes of recognition and differentiation, those of directed attention, and the rate of information processing slowed down in patients with different stages of pain syndrome. The P300 separating procedure using the emotionally significant stimuli allows one to assess the specific features of chronization of pain syndromes and the presence of pain memory in the central nervous system of such patients. The estimation of P300 parameters over time or during treatment are of particular value for the optimization and evaluation of its efficiency.</p></abstract><trans-abstract xml:lang="ru"><p>При хронической боли состояние надсегментарных структур головного мозга — коры, лимбической системы, стволово-диэнцефальных образований, формирующих мотивационно-аффективные и когнитивные компоненты болевого поведения, — активно влияет и на проведение болевой афферентации. Цель исследования — сравнительный анализ параметров и топографического распределения когнитивного потенциала Р300 у пациентов с болью в нижней части спины. Обследовано 60 пациентов в возрасте от 22 до 60 лет. Проведены клинико-неврологический осмотр, сбор анамнеза, оценка интенсивности боли в спине по визуально-аналоговой шкале. Полученные данные сопоставлялись с параметрами когнитивных вызванных потенциалов (выделение Р300 на счет, нажатие клавиши при распознавании значимых стимулов, разработан протокол на вербальную и невербальную зрительную стимуляцию с использованием эмоционально значимых стимулов). У пациентов с различными стадиями болевого синдрома замедленны процессы распознавания и дифференцировки, процессы направленного внимания и скорость переработки информации. Применение методики выделения Р300 с использованием эмоционально значимых стимулов позволяет оценить особенности хронизации болевых синдромов и наличие у таких пациентов «болевой памяти» в ЦНС. Особое значение имеет оценка параметров Р300 в динамике или в процессе лечения для оптимизации и оценки его эффективности.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>хроническая боль</kwd><kwd>когнитивный вызванный потенциал</kwd><kwd>Р300</kwd></kwd-group><kwd-group xml:lang="en"><kwd>chronic pain</kwd><kwd>cognitive evoked potential</kwd><kwd>P300</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">&lt;div&gt;&lt;p&gt;Gureje O., Simon G.E., von Korff M. A cross-national study of the course of persistent pain in primary care. Pain 2001;92:195—200.&lt;/p&gt;&lt;p&gt;Rubin D.I. Epidemiology and risk factors for spine pain. Neurol Clin 2007;25:353—71.&lt;/p&gt;&lt;p&gt;Hart R.P., Martelli M.F., Zasler N.D. Chronic pain and neuropsychological functioning. Neuropsychol Rev 2000;10:131—49.&lt;/p&gt;&lt;p&gt;Hart R.P., Wade J.B., Martelli M.F. 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