Kungani bonke abantu bathanda ulalele umculo?

Umculo unekhono asenza sizizwe sijabula futhi kwenze umoya wakho uthokoze, kodwa abanye abantu ayinayo nomphumela ofanayo. Cha, lawa cranks ayikwazi asolwe engekho umphefumulo, kodwa ababhali ucwaningo olusha kusikisela esikhundleni ukuthi abantu abanjalo uhlangabezana okubizwa ngokuthi anhedonia zomculo. Lokhu kusho ukuthi ubuchopho bazo nje abakwazi ukuphendula umculo.

Umehluko kufihlwe ubuchopho bethu

By kuthwetshulwa ubuchopho izifundo 15 ne anhedonia zomculo ebafanisa idatha kusuka nabantu abangasithandi abaphethwe le into eyinqaba, abacwaningi bakwazi ukuthola indlela umsebenzi kwemizwa kuhlukile kwala maqembu amabili. Ngakho, ososayensi bakwazi ukuchaza ukuthi kungani abanye abantu abakuthandi ukulalela umculo.

Ukusebenzisa obusebenzayo-magnetic resonance imaging (fMRI), abacwaningi bathola ukuthi lapho abantu abaphethwe anhedonia umculo, ulalele umculo, ayegubha ezingeni leliphasi kakhulu emkhakheni womsebenzi zobuchopho, okuthiwa i-nucleus eduze, kunabantu ngaphandle kwezimo ezinjalo.

Kungani isikimu isinxephezelo

Njengoba sazi ukuthi i-nucleus accumbens kuyingxenye umvuzo busebenze ebuchosheni, kubonakala ukuthi achaze ukuthi kungani laba bantu ngakho akuvamile faka imisindo umculo. Nokho, lapho wathatha ingxenye esimweni umdlalo, Asabela kanjani accumbens nucleus kwaba njengoba donsile njengoba ukuthi abantu ngaphandle anhedonia zomculo. Lokhu kusikisela ukuthi imivuzo yabo isikimu usebenza emihle, futhi le nkinga ngokukhethekile lihlotshaniswa umculo.

Abacwaningi ube esephendukela kwabo ubudlelwane phakathi ezingeni isakhiwo amaholo, othiwa striatum ventral (ifaka accumbens nucleus) kanye cortex sokuzwa, lapho umsindo okwenziwa. Iziguli anhedonia zomculo babe namazinga aphansi compounds kunalezo yokuzwela ejwayelekile umculo.

Elinye iqembu labantu 15 ne ezwela acute kakhulu umculo yabonisa uxhumano okusezingeni eliphezulu ikakhulukazi phakathi striatum ventral futhi cortex sokuzwa.

iziphetho ososayensi

Ngu ukushicilela imiphumela yayo e "iziNyathelo ye-National Academy of Sciences," kusho abacwaningi abhale: "anhedonia zomculo kungenzeka ukuthi umataniswe nokungawuvivinyi ngokwanele budlelwane emkhatsini wetincenye cortex sokuzwa kanye subcortical inethiwekhi isinxephezelo. Lokhu kukhomba indima ebalulekile yalesi yokusebenzisana bezibona umculo. " Nokho, yini ebangela mehluko, ososayensi baye okwamanje esiphethweni.