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P. 2985-3004.</li> </ol> [number_payments] => 2 [issues_id] => 0 [product_another] => [keywords_list_another] => [full_description_another] => [financing_sources] => [financing_sources_en] => [position] => 5 [page_from] => 48 [page_to] => 57 [rubric_ru] => [rubric_en] => [external_pid] => 0 [edu_program_ids] => 429 [operator_id] => 13224 [issn_isbn] => 0205-9592 [pages] => 0 [retracted] => N [retracted_comment] => [external_url] => [video_url] => [gold_access] => N [nonperiodic_type] => [isbn] => [source] => [fiscal_data_1212] => 1 [mark_code_type] => [lang_code] => ru [product] => СООТНОШЕНИЕ ПРОСТРАНСТВЕННО-ЧАСТОТНЫХ НАСТРОЕК ЗРИТЕЛЬНЫХ ФИЛЬТРОВ ПЕРВОГО И ВТОРОГО ПОРЯДКА [shortname] => [short_description] => [full_description] => Результаты исследований последних лет указывают на существование преаттентивного механизма пространственного группирования зрительной информации, образованного фильтрами второго порядка. Цель исследования - определить правило объединения выходов фильтров первого порядка на фильтрах второго порядка. Для решения поставленной задачи использовали шахматные текстуры, составленные из Габоровских элементов. Это позволило избежать артефактов, характерных для "шумовых" текстур. Определяли пороговую амплитуду модуляции контраста, ориентации или пространственной частоты при разном отношении частот огибающей и несущей. Установлено, что порог обнаружения модуляции минимален при определенном отношении частот. При изменении частоты несущей оптимальное отношение остается неизменным. Это указывает на то, что группирование фильтров первого порядка на механизмах второго порядка подчиняется определенному универсальному правилу. 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