Kutheni bonke abantu bayathanda ukuphulaphula umculo?

Umculo uyakwazi ukuze sizive okulungileyo phakamisa isimo sakho, kodwa abanye abantu kuyo akanayo nemiphumo efanayo. Akunjalo, le cranks ayikwazi lungabi nakubekwa bala ngenxa yokungabikho umphefumlo, kodwa ababhali Uphando olutsha lubonisa endaweni yokuba abantu abanjalo abafumana ekuthiwa-anhedonia somculo. Oku kuthetha ukuba iingqondo zabo nje nako ukuphendula umculo.

Umahluko kufihlwe inqondo zethu

Xa ukukrwaqula ubuchopho kwizifundo 15 kunye anhedonia zomculo kunye nokuthelekisa ukuba data evela kubantu abo engazivumeli kulo umbono ongaqhelekanga, abaphengululi bakwazi sibone indlela umsebenzi umbefu eyahlukileyo maqela mabini. Ngoko ke, oosonzululwazi baye bakwazi ukuba bachaze ukuba kutheni abanye abantu abakuthandi ukuphulaphula umculo.

Ukusebenzisa ezisebenzayo intlokoma magnetic umfanekiso (fMRI), abaphengululi bafumanisa ukuba xa abantu abanengxaki anhedonia umculo, ukuphulaphula umculo, ayewugqala inqanaba elisezantsi kakhulu kwinkalo yomsebenzi yobuchopho, leyo ibizwa ngokuba isiqalo osecaleni, kunokuba abantu ngaphandle iimeko ezinjalo.

Kutheni na le scheme imbuyekezo

Sisazi ukuba isiqalo accumbens kuyinxalenye umvuzo busebenze ingqondo, kuya kubonakala ukuba isizathu sokuba aba bantu kangaka kunqabile ukuba waphefumlela izandi yomculo. Noko ke, xa bathabatha inxaxheba isicwangciso umdlalo, impendulo kwezi accumbens isiqalo waba namandla njengoko abantu ngaphandle anhedonia umculo. Oku kubonisa ukuba umvuzo wabo scheme isebenza kakuhle, yaye lo mba ingakumbi linxulunyaniswa umculo.

Abaphandi ke waphethulela ingqalelo yabo amakhonkco phakathi kwenqanaba ngesakhiwo kwemivuzo, leyo ibizwa ngokuba striatum ventral (iquka accumbens isiqalo) kunye neuron ezikhalayo, apho izandi .Luqhubekekisiwe. Izigulane anhedonia zomculo kufuneka amanqanaba asezantsi iikhompawundi ngaphezu kwabo eqhelekileyo xa ufunyansiwe ukuba umculo.

Elinye iqela labantu 15 ubuthathaka oyingozi kakhulu umculo wabonisa unxulumano ingakumbi phakathi striatum ventral kunye uthinte eziviwayo.

iziphetho zesayensi

Ngokushicilela iziphumo zayo 'ngeeNkqubo National Academy of Sciences, "abaphandi abhale athi:" Le anhedonia zomculo esinxulunyaniswa kunye nokuhla intsebenziswano phakathi neuron eziviwayo kunye subcortical imbuyekezo womnatha. Oku kukhomba indima ephambili yale intsebenziswano kulo mbono somculo. " Noko ke, yintoni ebangela ezi mahluko, izazinzulu ziye okwangoku yabona ngaphandle.