Australijos Naujojo Piet\u0173 Velso universiteto mokslinink\u0173 teigimu, \u0161ie atradimai gali suteikti svarbi\u0105 u\u017euomin\u0105, padedan\u010di\u0105 suprasti, kod\u0117l \u017emon\u0117s (ir daugelis kit\u0173 r\u016b\u0161i\u0173) evoliucijos metu i\u0161siugd\u0117 geb\u0117jim\u0105 \u017eiovauti.<\/p>\n
Tyr\u0117j\u0173 komanda pasitelk\u0117 magnetinio rezonanso tomografij\u0105 (MRT), kad nuskenuot\u0173 22 sveik\u0173 dalyvi\u0173 galvas ir kaklus, kol j\u0173 buvo pra\u0161oma \u017eiovauti, giliai kv\u0117puoti, slopinti \u017eiovul\u012f arba kv\u0117puoti \u012fprastai.<\/p>\n
Kadangi \u017eiovulys ir gilus kv\u0117pavimas veikia pana\u0161iais mechanizmais, mokslininkai tik\u0117josi, kad magnetinio rezonanso vaizduose jie atrodys pana\u0161iai.<\/p>\n
Ta\u010diau rezultatai atskleid\u0117 netik\u0117t\u0105 skirtum\u0105. Paai\u0161k\u0117jo, kad, kitaip nei gilus \u012fkv\u0117pimas, \u017eiovulys smegen\u0173 skyst\u012f (CSF) stumia tolyn nuo smegen\u0173.<\/p>\n
\u201e\u017diovulys sukeldavo smegen\u0173 skys\u010dio jud\u0117jim\u0105 prie\u0161inga kryptimi nei giliai \u012fkv\u0117piant. O mes ten s\u0117d\u0117jome ir galvojome: \u201eOho, to tikrai nesitik\u0117jome\u201c, \u2013 sak\u0117 neurologas Adamas Martinacas.<\/p>\n
Tiesa, toks efektas u\u017efiksuotas ne visais atvejais, o tarp vyr\u0173 jis pasitaik\u0117 re\u010diau. Vis d\u0117lto tyr\u0117jai pa\u017eymi, kad tam \u012ftakos gal\u0117jo tur\u0117ti ir paties magnetinio rezonanso aparato sukeliami trikd\u017eiai.<\/p>\n
Tyrimas taip pat atskleid\u0117, kad tiek gilus kv\u0117pavimas, tiek \u017eiovulys padidino i\u0161 smegen\u0173 nutekan\u010dio kraujo sraut\u0105, taip sudarydami daugiau vietos \u012f smegenis patekti \u0161vie\u017eiam kraujui.<\/p>\n
\u017diovaujant kraujo t\u0117km\u0117s kryptis nesikeit\u0117. Ta\u010diau pradin\u0117se \u017eiovulio stadijose miego arterijomis \u012f smegenis tekan\u010dio kraujo srautas padid\u0117davo ma\u017edaug tre\u010ddaliu, o tai gali b\u016bti vienas i\u0161 galim\u0173 paai\u0161kinim\u0173, kod\u0117l apskritai \u017eiovaujame.<\/p>\n
Be to, visi dalyviai tur\u0117jo savitus \u017eiovavimo modelius, kurie buvo atid\u017eiai stebimi kiekvieno \u017eiovulio metu. Tai rodo, kad kiekvienas i\u0161 m\u016bs\u0173 turi individual\u0173 centrin\u012f modeli\u0173 generatori\u0173, lemiant\u012f, kaip mes \u017eiovaujame.<\/p>\n
\u201eKiekvienas \u017emogus \u017eiovauja savaip \u2013 taigi lie\u017euvio judesiai \u017eiovaujant skiriasi tarp \u017emoni\u0173, ta\u010diau kiekvienam asmeniui jie yra labai pastov\u016bs. Tai beveik kaip pir\u0161t\u0173 atspaudai, tod\u0117l \u017emog\u0173 b\u016bt\u0173 galima atpa\u017einti vien pagal tai, kaip jis \u017eiovauja\u201c, \u2013 sako A.Martinacas.<\/p>\n
Kitas svarbus klausimas \u2013 k\u0105 visa tai rei\u0161kia ir kod\u0117l \u017eiovulys tur\u0117t\u0173 taip smarkiai skirtis nuo gilaus \u012fkv\u0117pimo, kai kalbama apie smegen\u0173 skyst\u012f \u2013 skyst\u012f, kuris u\u017etikrina skland\u0173 centrin\u0117s nerv\u0173 sistemos veikim\u0105, tiekiant maistines med\u017eiagas ir pa\u0161alinant atliekas.<\/p>\n
Viena i\u0161 mokslinink\u0173 i\u0161kelt\u0173 hipotezi\u0173 \u2013 kad \u017eiovulys atlieka tam tikr\u0105 vaidmen\u012f valant smegenis. Kita hipotez\u0117 \u2013 kad tai yra tam tikra smegen\u0173 au\u0161inimo funkcija.<\/p>\n","protected":false},"excerpt":{"rendered":"Australijos Naujojo Piet\u0173 Velso universiteto mokslinink\u0173 teigimu, \u0161ie atradimai gali suteikti svarbi\u0105 u\u017euomin\u0105, padedan\u010di\u0105 suprasti, kod\u0117l \u017emon\u0117s (ir…\n","protected":false},"author":2,"featured_media":112083,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[25,30,31,34,35,24,32,33,37,39,36,38,40,23,22,44,28,29,26,27,74,75,76],"class_list":{"0":"post-174625","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-pasaulis","8":"tag-antrastes","9":"tag-breaking-news","10":"tag-breakingnews","11":"tag-featured-news","12":"tag-featurednews","13":"tag-headlines","14":"tag-latest-news","15":"tag-latestnews","16":"tag-lietuva","17":"tag-lietuviu","18":"tag-lithuania","19":"tag-lithuanian","20":"tag-lt","21":"tag-naujienos","22":"tag-news","23":"tag-pasaulis","24":"tag-populiariausios-naujienos","25":"tag-populiariausiosnaujienos","26":"tag-top-stories","27":"tag-topstories","28":"tag-world","29":"tag-world-news","30":"tag-worldnews"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@lt\/116554782948140699","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts\/174625","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/comments?post=174625"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts\/174625\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/media\/112083"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/media?parent=174625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/categories?post=174625"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/tags?post=174625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}