{"id":3589,"date":"2014-08-29T17:23:05","date_gmt":"2014-08-29T15:23:05","guid":{"rendered":"http:\/\/www.arnoschrauwers.nl\/weblog\/?p=3589"},"modified":"2014-08-29T17:23:05","modified_gmt":"2014-08-29T15:23:05","slug":"hersencellen-praten-via-trillingen-net-echt-dus","status":"publish","type":"post","link":"https:\/\/www.arnoschrauwers.nl\/weblog\/29\/08\/2014\/hersencellen-praten-via-trillingen-net-echt-dus\/","title":{"rendered":"Hersencellen praten via trillingen (net echt dus)"},"content":{"rendered":"
\"Resonantie<\/a>

Resonantie geeft de mogelijkheid tot communicatie tussen hersendelen (afb: univ. van Freiburg)<\/p><\/div>\n

Het schijnt dat hersencellen over langere afstanden met elkaar communiceren via trillingen of, beter gezegd, resonantie. Dat concluderen\u00a0Franse en Duitse wetenschappers<\/a> op basis van computersimulaties.
\nDe hersens vormen voor het overgrote deel nog steeds een groot mysterie. Hoe hersencellen over langere afstanden met elkaar communiceren was een bron van louter speculatie. Zo zouden er een soort ‘snelwegen’ zijn tussen de diverse hersendelen of er zouden trillingen in het spel zijn, maar niemand had enig idee hoe dat zou kunnen werken. Nu beschrijven Gerald Hahn van het CNRS-instituut UNIC<\/a> Gif-sur-Yvette (F) et. al. in het open blad PLoS Computational Biology<\/em> de mogelijkheid dat netwerken van neuronen kunnen resoneren om trillingen te versterken, waardoor die veel verder reiken. Ze komen tot die conclusie op basis van een computermodel. Ze analyseerden daarmee hoe de signalen door de hersens zouden kunnen wandelen.
\nDe onderzoekers benadrukken dat de simulatie niet is gebaseerd op onrealistische netwerkeigenschappen. Er hoeft ook niet een soort elektrische ‘gangmaker’ in de hersens te zitten om die resonantiecommunicatie mogelijk te maken. Resonantie is mogelijk met relatief weinig zwakke verbindingen zoals die in de hersens bestaan. Dat betekent dat een netwerk van hersencellen kan oscilleren rond een bepaald activiteitsniveau als resultaat van remming en activering. Die netwerken, zo gaat de verklaring verder, hebben voorkeursfrekwenties net als een vioolsnaar. Als een activiteit dezelfde frekwentie heeft, dan kan er resonanctie ontstaan, waardoor de trillingen verder reiken dan zonder. De onderzoekers denken dat het vermogen van een netwerk om van voorkeurfrekwentie te veranderen een rol zou kunnen spelen hoe de informatie verwerkt wordt.<\/p>\n

Bron: Alpha Galileo<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Het schijnt dat hersencellen over langere afstanden met elkaar communiceren via trillingen of, beter gezegd, resonantie. Dat concluderen\u00a0Franse en Duitse wetenschappers op basis van computersimulaties.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[96],"tags":[2190,2194,1201,2193,2191,2192],"class_list":["post-3589","post","type-post","status-publish","format-standard","hentry","category-hersens","tag-communicatie-in-de-hersens","tag-computermodel","tag-hersencellen","tag-netwerken","tag-resonantie","tag-trillingen"],"yoast_head":"\nHersencellen praten via trillingen (net echt dus) - Geleerd uitschot<\/title>\n<meta name=\"description\" content=\"De communicatie in de hersens zou via resonanties van trillingen verlopen, zo concluderen onderzoekers op basis van een computersimulaties\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.arnoschrauwers.nl\/weblog\/29\/08\/2014\/hersencellen-praten-via-trillingen-net-echt-dus\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hersencellen praten via trillingen (net echt dus) - 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