Boko ba batho ba nang le bothata ba papali ea chelete ba itšoara ka matla ho "haufi le liphoso" ho feta batho ba tloaetseng ho becha, mohlomong ba ba susumelletsang ho bapala ho feta, ho latela lipatlisiso tse ncha tokollong ea la 5 Motšeanong Journal of Neuroscience. Bafuputsi ba fumane sebaka sa boko se arabelang moputsong ka ho fana ka tekanyetso ea dopamine ea lik'hemik'hale se neng se sebetsa haholo ho batho bana.
Boithuto bo bonts'itse hore papali ea chelete ke bokhoba, bo ts'oanang ka litsela tse ngata le bokhoba ba lithethefatsi. Hona joale, bafuputsi ba UK Luke Clark, PhD, oa Univesithi ea Cambridge, le Henry Chase, PhD, oa Univesithi ea Nottingham ba fumana hore tekanyo eo boko ba motho bo arabelang ka eona ho liphoso tse haufi e kanna ea supa ho teba ha tahi. Selemong se fanoeng, batho ba baholo ba fetang limilione tse peli ba Amerika ba na le takatso e sa laoleheng ea ho becha leha ho bile le litlamorao tse mpe.
Phuputsong ena, bafuputsi ba sebelisitse litšoantšo tsa magnetic resonance imaging (fMRI) ho lekola likelello tsa batho ba 20 ba bechang. Mekhoa ea papali ea chelete ea bankakarolo e ne e qala ka ho reka tekete ea lothari ka linako tse ling ho isa ho becheng lipapali tse qobelloang.
Nakong ea teko, baithaopi ba ne ba sebelisa mochini o sekereng o skrineng o nang le mabili a mabeli a likonopo a ho potoloha. Ha litšoantšo tse peli li tšoana, moithaopi o hapile lisente tse ka bang 75, 'me meputso ea boko ea qala ho sebetsa. Ho se tšoane ha letšoao ke tahlehelo. Leha ho le joalo, ha mabili a emisa ka har'a letšoao le le leng la papali, sephetho se ne se nkuoa e le phoso e haufi. Clark le sehlopha sa hae ba fumane hore haufi le liphoso li sebelisitse mekhoa e tšoanang ea boko e hapiloeng, leha ho sa fuoe moputso.
"Liphuputso tsena lia thabisa hobane li fana ka maikutlo a hore liphetho tse haufi le ho hloloheloa li ka tsosa karabelo ea dopamine ho batho ba becha haholo, leha ho sa fuoe moputso oa nnete," ho boletse Clark. "Haeba ho phatloha hona ha dopamine ho khannela boitšoaro bo lemalloang, sena se ka thusa ho hlalosa hore na hobaneng batho ba nang le bothata ba ho becha ba thatafalloa ho e tlohela."
Haholo-holo, bangoli ba fumane likarabo tse matla ho 'mele oa mpa, sebaka se amanang le tšibollo e tletse lisele tsa boko tse lokollang dopamine. Ba boetse ba fumane hore meroalo e haufinyane e hokahane le ts'ebetso e eketsehileng libakeng tsa boko tse bitsoang ventral striatum le infula ea ka ntle, libaka tse tlameletsoeng moputso le ho ithuta.
Boithuto bo bontšitse hore batho ba bapalang lipapali tsa menyetla, joalo ka metjhini ea slot kapa lottery, hangata ba lumela ka phoso hore karolo e itseng ea boits'oaro e hlokahala ho hlola. Hangata thetso ena ea taolo e susumetsa libapali ho tsoela pele. Matthew Roesch, PhD, setsebi sa moputso le boits'oaro Univesithing ea Maryland College Park ea neng a sa sebetsane le thuto, o re maemo a eketsehang a dopamine nakong ea liphoso tse haufi a ka ba bohlokoa ho tsamaiseng papali ea papali ea chelete le ho ts'ehetsa maikutlo a fosahetseng a hore lipapali tsa menyetla li kenyelletsa bokgoni bofe kapa bofe.
"Mosebetsi oa nako e tlang o tla hlokahala ho tseba hore na karabelo ena e baka kapa ke ntho e sa tloaelehang e le mokhoa oa batho ba bapalang papali ea chelete - le hore na ho atile kapa che," ho boletse Roesch.
Patlisiso eo e ne e tšehelitsoe ke Boikarabello ho Papali ea Papali ea Papali ea Chelete (eo hona joale e leng Letlole la Papali ea Chelete ea Boikoaro), Lekhotla la Boithuto ba Bongaka (United Kingdom), le Wellcome Trust, mme e phethetsoe ka hare ho Univesithi ea Cambridge Behavioral and Clinical Neuroscience Institute.
Mohloli oa pale:
Lisebelisoa tse fanoeng ke Mokhatlo oa Neuroscience. Tlhokomeliso: Boitsebiso bo ka fetoha bakeng sa mokhoa le bolelele.
Journal Reference:
- Henry W. Chase, Luke Clark. Ho Becha Bofetoheli Ho Beha Karabelo ea Midbrain ho Liphetho tse Haufi. Journal of Neuroscience, 2010; 30 (18): 6180 DOI: 10.1523 / JNEUROSCI.5758-09.2010