{"id":153138,"date":"2013-11-13T00:00:00","date_gmt":"2013-11-13T00:00:00","guid":{"rendered":"https:\/\/v2.optiknow.ca\/les-aveugles-plus-sensibles-a-la-chaleur\/"},"modified":"2013-11-13T00:00:00","modified_gmt":"2013-11-13T00:00:00","slug":"les-aveugles-plus-sensibles-a-la-chaleur","status":"publish","type":"post","link":"https:\/\/v2.optiknow.ca\/fr\/2013\/11\/13\/les-aveugles-plus-sensibles-a-la-chaleur\/","title":{"rendered":"Les aveugles plus sensibles \u00e0 la chaleur"},"content":{"rendered":"<p>\u00a0<\/p>\n<p>Une recherche a r\u00e9cemment d\u00e9montr\u00e9 que la c\u00e9cit\u00e9 m\u00e8ne \u00e0 un \u00e9tat permanent d'hypersensibilit\u00e9 \u00e0 la douleur, lequel se manifeste notamment par une hypersensibilit\u00e9 aux stimuli thermiques.<\/p>\n<p>\u00a0<\/p>\n<p>L'une des fonctions biologiques de la douleur aigu\u00eb est de pr\u00e9venir les blessures. La vision joue un r\u00f4le critique dans cette fonction, puisqu'elle permet \u00e0 un individu de d\u00e9tecter et d'\u00e9viter une situation potentiellement dangereuse. Mais que se passe-t-il chez les aveugles? Une r\u00e9cente \u00e9tude men\u00e9e en Italie et au Danemark indique que ceux-ci compenseraient l'absence d'indices visuels par une vigilance accrue envers la douleur.<\/p>\n<p>\u00a0<\/p>\n<p>Les trois exp\u00e9riences men\u00e9es aupr\u00e8s d'aveugles et de personnes avec une vision normale consistaient \u00e0 mesurer le seuil de la douleur et le seuil de d\u00e9tection de la chaleur et du froid. Les r\u00e9sultats ont d\u00e9montr\u00e9 qu'en comparaison avec les personnes voyantes, les aveugles cong\u00e9nitaux avaient un seuil de douleur caus\u00e9e par la chaleur plus bas, trouvaient le stimulus de chaleur plus douloureux et d\u00e9montraient une sensibilit\u00e9 plus grande aux douleurs caus\u00e9es par le froid.<\/p>\n<p>\u00a0<\/p>\n<p>\u00ab\u00a0Nous avons d\u00e9montr\u00e9 que l'absence de vision d\u00e8s la naissance entra\u00eene une hypersensibilit\u00e9 \u00e0 la douleur, ce qui offre de nouveaux appuis \u00e0 un mod\u00e8le d'int\u00e9gration sensorielle des processus de la vision et de la douleur\u00a0\u00bb, explique le D<sup>r<\/sup> Ron Kupers, de l'Universit\u00e9 de Copenhague, au Danemark.<\/p>\n<p><\/p>\n<p>Sources\u00a0:<\/p>\n<p><a title=\"Les aveugles plus sensibles \u00e0 la chaleur\" href=\"http:\/\/www.sciencedaily.com\/releases\/2013\/11\/131101125413.htm\">http:\/\/www.sciencedaily.com\/releases\/2013\/11\/131101125413.htm<\/a><\/p>\n<p><a title=\"Les aveugles plus sensibles \u00e0 la chaleur\" href=\"http:\/\/www.painjournalonline.com\/article\/S0304-3959(13)00275-3\/abstract\">http:\/\/www.painjournalonline.com\/article\/S0304-3959(13)00275-3\/abstract<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 Une recherche a r\u00e9cemment d\u00e9montr\u00e9 que la c\u00e9cit\u00e9 m\u00e8ne \u00e0 un \u00e9tat permanent d'hypersensibilit\u00e9 \u00e0 la douleur, lequel se manifeste notamment par une hypersensibilit\u00e9 aux stimuli thermiques. \u00a0 L'une [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23133],"tags":[],"class_list":["post-153138","post","type-post","status-publish","format-standard","hentry","category-nouvelles"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - 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