Izinyembezi zabesifazane ziqukethe amakhemikhali avimbela ukuhlukunyezwa kwabesilisa, ucwaningo olwenziwa ososayensi bakwa-Israel, olucashunwe yi-electronic edition "Euricalert".
Ochwepheshe be-Weizmann Institute of Science bathola ukuthi izinyembezi ziholela ekunciphiseni komsebenzi wobuchopho ohambisana nobudlova, okubuye kube nomkhawulo wokuziphatha okunjalo kubameleli bobulili obunamandla. Umphumela uba ngemva kokuba amadoda “enuka” izinyembezi.
Ukuhlukunyezwa kwabesilisa kumagundane kwaziwa ukuthi kuyavinjwa uma ezwa iphunga lezinyembezi zezibonelo zesifazane. Lesi isibonelo se-social chemosignaling, inqubo evamile ezilwaneni kodwa engavamile—noma engaqondakali kahle—kubantu. Ukuze babone ukuthi banomphumela ofanayo yini kubantu, abacwaningi babone umthelela wezinyembezi ezingokomzwelo zabesifazane eqenjini lamadoda abambe iqhaza emdlalweni okhethekile wababili. Ngezinhloso zokuhlaziywa, amanye amavolontiya anikezwa usawoti esikhundleni sezinyembezi.
Umdlalo uklanyelwe ukuvusa impatho enolaka ngokumelene nomphikisi ocatshangwa ukuthi uyakopela. Uma benikezwa ithuba, amadoda angaphindisela koncintisana naye ngokumenza alahlekelwe yimali. Abamele ubulili obunamandla abazi ukuthi yini abayiphunga futhi abakwazi ukuhlukanisa phakathi kwezinyembezi nosawoti, ezingenaphunga.
Ukuziphatha okunolaka okuhloselwe ukuziphindiselela phakathi nomdlalo kwehle ngamaphesenti angaphezu kuka-40 ngemva kokuba amadoda ekwazi ukuthola izinyembezi ezingokomzwelo zabesifazane, ngokusho kwedatha yakwa-Israel.
Ekuhlolweni kabusha nge-imaging resonance magnetic, imaging esebenzayo ibonise izifunda ezimbili zobuchopho ezihlobene nobudlova - i-prefrontal cortex kanye ne-insula yangaphambili. Zicutshungulwa lapho amadoda ecasulwa phakathi nomdlalo, kodwa awenziwanga kakhulu ezimweni ezifanayo lapho abameleli bobulili obunamandla bengaphansi kwethonya lezinyembezi. Ngaphezu kwalokho, kusobala ukuthi lapho umehluko omkhulu kulo msebenzi wobuchopho, umphikisi uvame ukuziphindiselela phakathi negeyimu.
Ukutholakala kwalokhu kuxhumana phakathi kwezinyembezi, ukusebenza kobuchopho nokuziphatha okunolaka kuphakamisa ukuthi i-chemosignaling yomphakathi iyisici sobudlova bomuntu kunokuba nje ilukuluku lesilwane.
“Sithole ukuthi, njengamagundane, izinyembezi zomuntu zikhipha uphawu lwamakhemikhali oluvimba ulaka lwabesilisa. Lokhu kungqubuzana nombono wokuthi izinyembezi ezingokomzwelo zingumuntu kuphela,” kuphawula ososayensi bakwa-Israel, abaholwa uShani Agron.
Idatha yocwaningo ishicilelwe kujenali yokufinyelela evulekile i-PLOS Biology
