{"id":73517,"date":"2025-12-16T12:00:00","date_gmt":"2025-12-16T12:00:00","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/le-silence-est-il-un-son"},"modified":"2025-12-18T02:50:27","modified_gmt":"2025-12-18T02:50:27","slug":"le-silence-est-il-un-son","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/le-silence-est-il-un-son","title":{"rendered":"Le Silence Est-Il un Son?"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Senegal. <\/strong><\/span>Le silence est-il un son, un bruit? \u00bb, nous demande Jordi Campoy sur notre page Facebook. C\u2019est notre question de lecteur de la semaine. Merci a\u0300 toutes et tous pour votre participation.<\/p>\n<p>\u00ab Les philosophes de\u0301battent depuis longtemps de la question de savoir si le silence est quelque chose que nous pouvons litte\u0301ralement percevoir, mais aucune e\u0301tude scientifique ne s\u2019e\u0301tait penche\u0301e directement sur cette question \u00bb, nous expliquait Chaz Firestone, professeur adjoint de psychologie a\u0300 l\u2019universite\u0301 Johns Hopkins (Etats-Unis), dans un article publie\u0301 en 2023 et intitule\u0301 \u00ab Le silence produit un son que nous pouvons entendre, selon une e\u0301tude\u00ab.<\/p>\n<p><b>\u00ab Le silence, quel qu\u2019il soit, n\u2019est pas un son, c\u2019est l\u2019absence de son \u00bb<\/b><\/p>\n<p>Pour sortir du de\u0301bat abstrait, Chaz Firestone et son e\u0301quipe ont choisi une voie originale: utiliser des illusions auditives pour tester la perception&#8230; de l\u2019absence de son.<\/p>\n<p>Leur e\u0301tude, publie\u0301e en 2023 dans la revue Proceedings of the National Academy of Sciences (PNAS), ne pre\u0301tend pas rede\u0301finir le silence comme un son. Au contraire, les chercheurs sont clairs: \u00ab Le silence, quel qu\u2019il soit, n\u2019est pas un son, c\u2019est l\u2019absence de son \u00bb, soulignait en 2023 Rui Zhe Goh, co-auteur de l\u2019e\u0301tude. Mais alors, que perc\u0327oit exactement notre cerveau quand il n\u2019y a \u00ab rien \u00bb a\u0300 entendre?<\/p>\n<p>Pour re\u0301pondre a\u0300 cette question, cette e\u0301quipe de recherche a de\u0301tourne\u0301 des illusions auditives bien connues, qui reposent sur la segmentation: notre syste\u0300me auditif de\u0301coupe en permanence le flux continu d\u2019ondes sonores en e\u0301ve\u0301nements distincts (une note, un mot, un bip). Le pari e\u0301tait audacieux: remplacer les sons par des silences. Si les me\u0302mes illusions apparaissaient, cela signifierait que le cerveau traite aussi les silences comme des e\u0301ve\u0301nements auditifs a\u0300 part entie\u0300re.<\/p>\n<p><b>\u00ab Nous entendons le silence \u00bb<\/b><\/p>\n<p>L\u2019expe\u0301rience a mobilise\u0301 pre\u0300s de 1 000 participants. Ceux-ci ont d\u2019abord e\u0301coute\u0301 des ambiances sonores simulant le vacarme de lieux publics. Puis les me\u0302mes sce\u0300nes auditives, cette fois interrompues par de bre\u0300ves plages de silence. Re\u0301sultat: comme pour les sons, un long silence est perc\u0327u comme plus long que deux silences courts, me\u0302me lorsque leur dure\u0301e totale est identique. \u00ab Cela sugge\u0300re que le syste\u0300me auditif traite les moments de silence de la me\u0302me manie\u0300re que les sons. En d\u2019autres termes, nous entendons le silence \u00bb, re\u0301sumait en 2023 Ian Phillips, coauteur de l\u2019e\u0301tude.<\/p>\n<p><b>\u00ab Il y a au moins une chose que nous entendons qui n\u2019est pas un son \u00bb<\/b><\/p>\n<p>Attention toutefois a\u0300 la conclusion ha\u0302tive: entendre le silence ne signifie pas qu\u2019il devienne un bruit. Les chercheurs insistent sur la nuance. Le silence reste une absence de stimulation sonore, mais cette absence est activement traite\u0301e par le syste\u0300me auditif, au me\u0302me titre que la pre\u0301sence d\u2019un son.<\/p>\n<p>\u00ab Il y a au moins une chose que nous entendons qui n\u2019est pas un son: le silence qui se produit lorsque les sons disparaissent \u00bb, pre\u0301cise Ian Phillips. Autrement dit, notre oreille \u2013 et surtout notre cerveau \u2013 ne se contente pas d\u2019enregistrer des vibrations: il de\u0301tecte aussi leurs interruptions, leurs contrastes, leurs disparitions.<\/p>\n<p><b>Le silence absolu existe-t-il?<\/b><\/p>\n<p>Cette e\u0301tude ne clo\u0302t pas le de\u0301bat philosophique, mais l\u2019enrichit. Quelles sont les limites de notre perception du silence? Peut-on entendre des silences tre\u0300s longs? Et surtout, existe-t-il quelque chose comme un silence absolu, une absence totale de sons, ou bien notre cerveau finit-il toujours par \u00ab remplir le vide \u00bb? Autant de questions qui ouvrent un nouveau champ de recherche: celui de la perception de l\u2019absence. Une manie\u0300re de peut-e\u0302tre comprendre pourquoi le silence peut parfois peser autant qu\u2019un vacarme.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <span style=\"color: #ff6600\">Senegal<\/span>, suivez <span style=\"color: #ff6600\">Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Senegal. Le silence est-il un son, un bruit? \u00bb, nous demande Jordi Campoy sur notre page Facebook. C\u2019est notre question de lecteur de la semaine. Merci a\u0300 toutes et tous pour votre participation. \u00ab Les philosophes de\u0301battent depuis longtemps de la question de savoir si le silence est quelque chose que nous pouvons [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":73516,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[44],"class_list":["post-73517","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-senegal-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Le Silence Est-Il un Son? - Senegal<\/title>\n<meta name=\"description\" content=\"Le silence est-il un son, un bruit? \u00bb, nous demande Jordi Campoy sur notre page Facebook. 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