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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">Sensory Systems</journal-id><journal-title-group><journal-title xml:lang="en">Sensory Systems</journal-title><trans-title-group xml:lang="ru"><trans-title>Сенсорные системы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0235-0092</issn><issn publication-format="electronic">3034-5936</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">675770</article-id><article-id pub-id-type="doi">10.31857/S0235009224040048</article-id><article-id pub-id-type="edn">ADFOZS</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>СЛУХОВАЯ СИСТЕМА</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">Localization of a sound signal in the vertical plane under masking conditions</article-title><trans-title-group xml:lang="ru"><trans-title>Локализация звукового сигнала в условиях маскировки в вертикальной плоскости</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Agaeva</surname><given-names>M. Yu.</given-names></name><name xml:lang="ru"><surname>Агаева</surname><given-names>М. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>agamu_1@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">I.P. Pavlov Institute of Physiology RAS</institution></aff><aff><institution xml:lang="ru">Институт физиологии им. И.П. Павлова РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-12-12" publication-format="electronic"><day>12</day><month>12</month><year>2024</year></pub-date><volume>38</volume><issue>4</issue><fpage>38</fpage><lpage>48</lpage><history><date date-type="received" iso-8601-date="2025-02-28"><day>28</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://journals.eco-vector.com/0235-0092/article/view/675770">https://journals.eco-vector.com/0235-0092/article/view/675770</self-uri><abstract xml:lang="en"><p>The effect of masker on the localization of a sound source in vertical sagittal plane was investigated in simultaneous masking conditions and in the precedence effect paradigm. In the first case, the stationary signal and the masker were presented simultaneously while in the second case the signal onset was delayed relative to the masker onset. The delay was 2, 4, 8, 20, 40, 80 and 200 ms. The signal and the masker were created from two different uncorrelated noise bursts with a bandwidth of 5 to 18 kHz. Duration of noise bursts were 1 s. The masker was placed above the listeners head at an angle of 90 deg and the signal was placed in front of the listener at an angle of 7.5 deg. Perceived positions of signals under masking conditions were compared with those single of the signal or masker presented separately. It is shown that under the masking conditions the probability of detecting a signal decreased. Listeners could localize the signal at the delay of 80 ms and higher. The probability of detecting the signal at 80 ms delay was 92%. The perceived position of signal in masking condition did not significantly differ from the perceived position of single signal. At delays ranging from 0 to 40 ms, listeners mainly showed a perceived masker position that was shifted toward the signal. The shifted position was significantly different from the perceived position of a single masker.</p></abstract><trans-abstract xml:lang="ru"><p>Исследовано влияние маскера на локализацию звукового сигнала в вертикальной сагиттальной плоскости в условиях маскировки: одновременной и в парадигме эффекта предшествования. В первом случае неподвижные сигнал и маскер предъявлялись одновременно, во втором – начало сигнала сдвигалось относительно начала маскера. Величина сдвига (задержка) составляла 2, 4, 8, 20, 40, 80 и 200 мс. В качестве сигнала и маскера были использованы некоррелированные шумовые посылки с шириной полосы от 5 до 18 кГц. Длительность шумовых посылок – 1 с. Маскер всегда предъявлялся под углом 90° элевации (над головой слушателя), а сигнал из положения 7.5° элевации (перед слушателем относительно межушной линии). Воспринимаемое угловое положение сигнала в условиях маскировки сравнивалось с пространственными оценками того же сигнала при его изолированном предъявлении (без маскера), аналогично локализация маскера в условиях маскировки сравнивалась с воспринимаемым положением изолированного маскера (без сигнала). Показано, что под действием маскировки вероятность обнаружения сигнала уменьшалась. При задержках от 0 до 40 мс слушатели в основном показывали воспринимаемое положение маскера, которое было смещено в сторону сигнала независимо от величины задержки и достоверно отличалось от воспринимаемого положения одиночного маскера. Вероятность локализазации сигнала при этих задержках составляла не больше 8%. При задержках от 80 мс и выше вероятность локализации сигнала увеличивалась и составляла 92% и выше. Воспринимаемое положение сигнала не зависело от величины задержки и достоверно не отличалось от положения одиночного сигнала.</p></trans-abstract><kwd-group xml:lang="en"><kwd>vertical plane</kwd><kwd>sound signal localization</kwd><kwd>masking</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вертикальная плоскость</kwd><kwd>локализация звукового сигнала</kwd><kwd>маскировка</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Правительство Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Government of the Russian Federation</institution></institution-wrap></funding-source><award-id>1021062411653–4–3.1.8</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Agaeva M. Ju., Al'tman Ja. A. 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