{"id":14902,"date":"2023-04-20T17:34:03","date_gmt":"2023-04-20T17:34:03","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=14902"},"modified":"2023-04-20T17:34:03","modified_gmt":"2023-04-20T17:34:03","slug":"daytime-drowsiness-and-the-brain","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/neuroscience\/daytime-drowsiness-and-the-brain\/","title":{"rendered":"Mozkov\u00e1 aktivita a denn\u00ed ospalost"},"content":{"rendered":"

Mozkov\u00e1 aktivita a denn\u00ed ospalost<\/h2>\n\n

Kdy\u017e se b\u011bhem dne c\u00edt\u00edte ospal\u00ed, nen\u00ed to jen va\u0161e p\u0159edstavivost. V\u00e1\u0161 mozek ve skute\u010dnosti us\u00edn\u00e1. Nov\u011b objeven\u00fd mozkov\u00fd okruh spou\u0161t\u00ed \u010d\u00e1sti mozku, aby p\u0159e\u0161ly do re\u017eimu sp\u00e1nku, zat\u00edmco zbytek mozku z\u016fst\u00e1v\u00e1 aktivn\u00ed.<\/p>\n\n

Talamoj\u00e1dre\u010dko retikul\u00e1rn\u00ed (TRN)<\/h2>\n\n

Talamoj\u00e1dre\u010dko retikul\u00e1rn\u00ed (TRN) je \u010d\u00e1st mozku, kter\u00e1 hraje kl\u00ed\u010dovou roli v regulaci sp\u00e1nku a bd\u011bn\u00ed. Kdy\u017e sp\u00edte, jste v k\u00f3matu nebo pod anestezi\u00ed, TRN vys\u00edl\u00e1 pomal\u00e9 mozkov\u00e9 vlny do mozkov\u00e9 k\u016fry. Tyto pomal\u00e9 vlny spou\u0161t\u011bj\u00ed hlubok\u00fd sp\u00e1nek a pom\u00e1haj\u00ed mozku upev\u0148ovat vzpom\u00ednky.<\/p>\n\n

Pomal\u00e9 mozkov\u00e9 vlny a ospalost<\/h2>\n\n

Je zaj\u00edmav\u00e9, \u017ee kdy\u017e jsou pomal\u00e9 mozkov\u00e9 vlny aktivov\u00e1ny, zat\u00edmco jste vzh\u016fru, mohou p\u0159esto poslat \u010d\u00e1sti va\u0161eho mozku do sp\u00e1nku, co\u017e v\u00e1s \u010din\u00ed ospal\u00fdmi. Studie prok\u00e1zaly, \u017ee kdy\u017e jsou zv\u00ed\u0159ata vystavena pomal\u00fdm mozkov\u00fdm vln\u00e1m, za\u010dnou se chovat, jako by byla ospal\u00e1, st\u00e1vaj\u00ed se m\u00e9n\u011b aktivn\u00edmi a vykazuj\u00ed sn\u00ed\u017een\u00fd svalov\u00fd tonus.<\/p>\n\n

TRN a denn\u00ed ospalost<\/h2>\n\n

V\u00fdzkumn\u00edci zjistili, \u017ee stimulace TRN u my\u0161\u00ed m\u016f\u017ee zp\u016fsobit denn\u00ed ospalost. Kdy\u017e byl TRN aktivov\u00e1n, mozky my\u0161\u00ed produkovaly pomal\u00e9 mozkov\u00e9 vlny, co\u017e je p\u0159im\u011blo vypadat zmaten\u011b a ospale. To nazna\u010duje, \u017ee TRN m\u016f\u017ee b\u00fdt zodpov\u011bdn\u00fd za odpoledn\u00ed \u00fatlum, kter\u00fd za\u017e\u00edv\u00e1 mnoho lid\u00ed.<\/p>\n\n

TRN a anestezie<\/h2>\n\n

TRN se tak\u00e9 pod\u00edl\u00ed na anestezii. Mnoho anestetick\u00fdch l\u00e9k\u016f p\u016fsob\u00ed na TRN a produkuje pomal\u00e9 mozkov\u00e9 vlny jako jeden z jejich charakteristick\u00fdch \u00fa\u010dink\u016f. To nazna\u010duje, \u017ee TRN m\u016f\u017ee b\u00fdt potenci\u00e1ln\u00edm c\u00edlem pro v\u00fdvoj nov\u00fdch anestetik, kter\u00e1 l\u00e9pe napodobuj\u00ed p\u0159irozen\u00e9 vzorce sp\u00e1nku a maj\u00ed m\u00e9n\u011b vedlej\u0161\u00edch \u00fa\u010dink\u016f.<\/p>\n\n

Implikace pro pr\u00e1\u0161ky na span\u00ed<\/h2>\n\n

Pochopen\u00ed role TRN ve sp\u00e1nku a bd\u011bn\u00ed by mohlo v\u00e9st k v\u00fdvoji lep\u0161\u00edch pr\u00e1\u0161k\u016f na span\u00ed. Zam\u011b\u0159en\u00edm se na TRN mohou v\u011bdci vytvo\u0159it l\u00e9ky, kter\u00e9 navozuj\u00ed sp\u00e1nek p\u0159irozen\u011bji a \u00fa\u010dinn\u011bji, s men\u0161\u00edm po\u010dtem ne\u017e\u00e1douc\u00edch vedlej\u0161\u00edch \u00fa\u010dink\u016f.<\/p>\n\n

Dal\u0161\u00ed v\u00fdzkum<\/h2>\n\n

Zat\u00edmco objev role TRN v denn\u00ed ospalosti je v\u00fdznamn\u00fdm krokem vp\u0159ed, v\u011bdci st\u00e1le nev\u011bd\u00ed mnoho o tomto komplexn\u00edm mozkov\u00e9m okruhu. Je zapot\u0159eb\u00ed dal\u0161\u00edho v\u00fdzkumu, aby bylo pln\u011b pochopeno, jak TRN reguluje sp\u00e1nek a bd\u011bn\u00ed a jak m\u016f\u017ee b\u00fdt manipulov\u00e1n ke zlep\u0161en\u00ed v\u00fdsledk\u016f sp\u00e1nku.<\/p>","protected":false},"excerpt":{"rendered":"

Mozkov\u00e1 aktivita a denn\u00ed ospalost Kdy\u017e se b\u011bhem dne c\u00edt\u00edte ospal\u00ed, nen\u00ed to jen va\u0161e p\u0159edstavivost. V\u00e1\u0161 mozek ve skute\u010dnosti us\u00edn\u00e1. Nov\u011b objeven\u00fd mozkov\u00fd okruh spou\u0161t\u00ed \u010d\u00e1sti mozku, aby p\u0159e\u0161ly…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[411],"tags":[293,1395,19932,1870,19933],"class_list":["post-14902","post","type-post","status-publish","format-standard","hentry","category-neuroscience","tag-circadian-rhythm","tag-cognitive-neuroscience","tag-neurobiology-of-sleep","tag-brain-science","tag-thalamic-reticular-nucleus"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=14902"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14902\/revisions"}],"predecessor-version":[{"id":14903,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14902\/revisions\/14903"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=14902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=14902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=14902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}