Bonyane ba boko ba hau bo bontšang hore na lintho li ka ba mpe hakae
Karolo ea tlhaho ea khale le e nyane ea boko e latela litebello mabapi le liketsahalo tse mpe, e fumana lipatlisiso tse ncha tsa UCL.
Boithuto bona, bo hatisitsoeng ho Proceedings of the National Academy of Science, bo bonts'a ka lekhetlo la pele hore habenula ea motho, halofo ea lekhapetla, e lelekisa likhakanyo mabapi le liketsahalo tse mpe, joalo ka lits'oants'o tse bohloko tsa motlakase, ho fana ka maikutlo a karolo ea ho ithuta ho tsoa liphihlelong tse mpe.
Brain scans e tsoang ho baithaopi ba phetseng hantle ba 23 e bonts'itse hore habenula e sebetsa ha e arabela lifoto tse amanang le lits'oants'o tse bohloko tsa motlakase, ka ketsahalo e fapaneng le ea lifoto tse boletseng esale pele ho hapa chelete.
Boithuto ba pejana ho liphoofolo bo fumane hore ts'ebetso ea habenula e lebisa ho phepheng ha e hatella dopamine, k'hemik'hale ea boko e tsamaisang khothatso. Ho liphoofolo, lisele tsa habenula li fumanoe li chesa ha lintho tse mpe li etsahala kapa li lebelletsoe.
"Habenula e latela liphihlelo tsa rona, e arabela ho hobe le ho feta moo ho lebelletsoeng ho ba teng," ho bolela mongoli e moholo Dr Jonathan Roiser oa UCL Institute of Cognitive Neuroscience. “Mohlala, habenula e arabela ka matla le ho feta ha ts'isinyeho ea motlakase e batla e le teng ho feta ha e sa lebelloa. Thutong ena re bontšitse hore habenula ha e bontše feela hore na ho na le ntho e lebisang liketsahalong tse mpe kapa che; e bontša hantle hore na ho lebelletsoe litholoana tse mpe hakae. ”
Nakong ea teko, baithaopi ba phetseng hantle ba ile ba kenngoa ka har'a mochini o ka har'a sebapali o sebelisang mahlaseli a ts'ebetso ea matla a khoheli (fMRI), 'me litšoantšo tsa bokong li ile tsa bokelloa ka qeto e phahameng hobane habenula e nyane haholo. Baithaopi ba ile ba bontšoa tatelano ea litšoantšo ka tatellano e lateloang ke monyetla o motle oa ho hlahisa litholoana tse ntle kapa tse mpe, ka linako tse ling ba tobetsa konopo ho bontša hore ba ela hloko. Ts'ebetso ea Habenula e ile ea latela tebello e fetohang ea liketsahalo tse mpe le tse ntle.
Batho ba ile ba khahloa ke ho tobetsa konopo ha setšoantšo seo se amahanngoa le ho tšoha, le hoja karabelo ea bona e ne e sa ame liphello. ” ho bolela mongoli ea etelletseng pele Dr Rebecca Lawson, le eena ho UCL Institute of Cognitive Neuroscience. "Ho feta moo, batho ba liehang ba arabela, ba ile ba ts'epahalla mekhatlo ea bona ea habenula ka mokhoa o tšosang. Sena se bontša kamano e bohlokoa lipakeng tsa habenula le boitšoaro bo susumetsoang, bo ka bang teng ka lebaka la khatello ea dopamine. ”
Habenula e kile ea hokahanngoa le khatello ea maikutlo, 'me thuto ena e bonts'a hore na e ka ameha joang ho baka matšoao a joalo, ho hloka tšepo le ho tsepamisa maikutlo liphihlelong tse mpe. Habenula e matlafatsang e ka etsa hore batho ba profete hampe.
Dr Roiser o re: "Mosebetsi o mong o bontša hore ketamine, e nang le melemo e tebileng le e potlakileng ho bakuli ba sa atleheng ho amohela meriana e tloahelehileng ea ho imeloa kelellong, e fokotsa ts'ebetso ea habenula." "Ka hona, ho utloisisa habenula ho ka re thusa ho hlahisa mekhoa e metle ea kalafo bakeng sa khatello ea maikutlo e hanang kalafo."
Boitsebiso bo eketsehileng: Proceedings of National Academy of Sciences. DOI: 10.1073 / pnas.1323586111
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