\nAsigurarea unei anumite autonomii \u00een cazul persoanelor suferind de paralizie este obiectivul echipei BrainGate2, format\u0103 din cercet\u0103tori de la Brown University, Massachusetts General Hospital, Stanford University \u015fi Providence VA Medical Center din Statele Unite ale Americii.<\/p>\n
\nDe foarte mul\u0163i ani, ace\u015ftia \u00eencearc\u0103 s\u0103 creeze o interfa\u0163\u0103 ambi\u0163ioas\u0103, capabil\u0103 s\u0103 descifreze activitatea cerebral\u0103 a bolnavilor pentru ca ace\u015ftia s\u0103 poat\u0103 controla dispozitive care s\u0103 \u00eei ajute la comunicare \u015fi mi\u015fcare.<\/p>\n
\nCele mai recente teste au avut ca subiec\u0163i dou\u0103 persoane suferind de scleroz\u0103 lateral\u0103 amiotrofic\u0103 (maladia Charcot), care au reu\u015fit s\u0103 utilizeze aceast\u0103 interfa\u0163\u0103, iar rezultatele las\u0103 s\u0103 se \u00eentrevad\u0103 noi perspective \u00een acest domeniu de cercetare.<\/p>\n
\nPentru a reu\u015fi o astfel de performan\u0163\u0103, cercet\u0103torii au implantat \u00een cortexul motor al voluntarilor, \u00een v\u00e2rst\u0103 de 50 de ani, c\u00e2te o re\u0163ea de electrozi. Subiec\u0163ii au fost apoi ruga\u0163i s\u0103 \u00ee\u015fi imagineze o mi\u015fcare prin care s\u0103 deplaseze cursorul pe ecranul unui computer p\u00e2n\u0103 la o anumit\u0103 \u0163int\u0103.<\/p>\n
\n\u00cen timpul experimentelor, dispozitivul a \u00eenregistrat simultan semnalele trimise de partea creierului care controla mi\u015fc\u0103rile \u015fi a retransmis informa\u0163iile c\u0103tre computer pentru a efectua sarcina respectiv\u0103.<\/p>\n
\nRezultatele acestui studiu, prezentate \u00een revista Nature Medicine, sugereaz\u0103 c\u0103 noua genera\u0163ie de “protez\u0103 cerebral\u0103” func\u0163ioneaz\u0103 nu numai satisf\u0103c\u0103tor, ci \u015fi de dou\u0103 ori mai rapid dec\u00e2t versiuni precedente.<\/p>\n
\nUn astfel de experiment a fost realizat cu succes \u015fi \u00een 2011, pe o pacient\u0103 tetraplegic\u0103, Cathy Hutchinson, care a reu\u015fit s\u0103 ac\u0163ioneze un bra\u0163 robotizat cu ajutorul unei re\u0163ele de electrozi implantat\u0103 \u00een creier. De la acel moment, dispozitivul a fost \u00eembun\u0103t\u0103\u0163it.<\/p>\n
\nPotrivit speciali\u015ftilor, prototipul se apropie din ce \u00een ce mai mult de o versiune poten\u0163ial utilizabil\u0103 de persoane cu handicap, \u00een mod autonom.<\/p>\n","protected":false},"excerpt":{"rendered":"
Dou\u0103 persoane suferind de paralizie au reu\u015fit, \u00een timpul unor teste clinice, s\u0103 mi\u015fte cursorul unui computer prin puterea g\u00e2ndului, un succes considerat de speciali\u015fti f\u0103r\u0103 precedent, informeaz\u0103 maxisciences.com.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[510],"tags":[41751,21802],"class_list":["post-127842","post","type-post","status-publish","format-standard","hentry","category-actualitate","tag-comunicare-cerebrala","tag-paralizie"],"_links":{"self":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/127842","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=127842"}],"version-history":[{"count":0,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/127842\/revisions"}],"wp:attachment":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=127842"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=127842"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=127842"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}