Ingabe Izinja Ziyayibona Imibala?

Mhlawumbe omunye wemibuzo ebuzwa njalo ngombono wenja ukuthi uyayibona yini imibala. Impendulo elula, yokuthi izinja ziyi-colorblind, ichazwe ngokungeyikho ngabantu njengokusho ukuthi izinja aziboni umbala, kepha kuphela i-shades yegrey. Lokhu akulungile. Izinja ziyayibona imibala, kodwa imibala eziyibonayo ayicebile futhi ayiningi njengaleyo ebonwa abantu.

Amehlo abo bobabili abantu nezinja aqukethe amaseli akhethekile okubamba abizwa ngama-cones aphendula umbala. Izinja zinezigaxa ezimbalwa kunabantu, okuphakamisa ukuthi umbono wazo wombala ngeke ucebe noma uqine njengathi. Kodwa-ke, iqhinga lokubona umbala aligcini ngokuba nezigaxa, kepha linezinhlobo ezahlukahlukene zama-cone, ngalinye libhekiswe kubude bokukhanya obuhlukile. Abantu banezinhlobo ezintathu zama-cone futhi ukusebenza okuhlangene kwalokhu kunikeza abantu uhla lwabo oluphelele lombono wombala.

Izinhlobo ezivame kakhulu zokubala kombala womuntu zenzeka ngoba umuntu ulahlekelwe olunye lwezinhlobo ezintathu zama-cones. Ngama-cones amabili kuphela, umuntu usengayibona imibala, kepha mancane kakhulu kunomuntu onombono ojwayelekile wombala. Lesi yisimo sezinja nazo ezinezinhlobo ezimbili kuphela zama-cones.

UJay Neitz e-University of California, eSanta Barbara, wahlola umbono wezinja. Ekuvivinyweni okuningi kokuhlolwa, izinja zakhonjiswa amapaneli wokukhanya amathathu elandelanayo, amabili wamapaneli ayenombala ofanayo, kanti owesithathu wayehlukile. Umsebenzi wezinja kwakuwukuthola ohlukile futhi ucindezele lelo phaneli. Uma inja yayiqinisile, wavuzwa ngesiphatho esathunyelwa yikhompyutha enkomishini engezansi kwalelo phaneli.

UNeitz ukuqinisekisile ukuthi izinja empeleni ziyawubona umbala, kepha imibala embalwa kunabantu abajwayelekile iyayibona. Esikhundleni sokubona uthingo njenge-violet, okuluhlaza okwesibhakabhaka, okuluhlaza okwesibhakabhaka, okuluhlaza okotshani, okuphuzi, okusawolintshi nokubomvu, izinja zizolubona njengombala oluhlaza okwesibhakabhaka, okuluhlaza okwesibhakabhaka, okumpunga, ophuzi okhanyayo, ophuzi okumnyama (uhlobo olunsundu), futhi omnyama kakhulu mpunga. Izinja zibona imibala yomhlaba njengokuphuzi, okuluhlaza okwesibhakabhaka nokumpunga ngokuyisisekelo. Babona imibala eluhlaza, ephuzi, nowolintshi njengombala ophuzi, futhi babona okuluhlaza okwesibhakabhaka noluhlaza okwesibhakabhaka njengokuhlaza okwesibhakabhaka. Okuluhlaza okwesibhakabhaka kubonakala njengokumpunga. Ungabona ukuthi i-spectrum ibukeka kanjani kubantu nasezinja ngezansi.

Iqiniso elilodwa elihlekisayo noma elingajwayelekile ukuthi imibala ethandwa kakhulu yamathoyizi enja namuhla abomvu noma ukuphepha kwe-orange (okukhanyayo okukhanyayo okusawolintshi kuzigaxa zethrafikhi noma amavesti okuphepha). Noma kunjalo okubomvu kunzima izinja ukukubona. Kungabonakala njengokumpunga okumnyama kakhulu noma mhlawumbe kumnyama. Lokhu kusho ukuthi lelo thoyizi elibomvu elikhanyayo elibomvu elibonakala kakhulu kuwe kungenzeka kube nzima ukuthi inja yakho ilibone. Lokho kusho ukuthi lapho inguqulo yakho yesilwane sasekhaya iLassie igijima idlula ngqo ithoyizi oliphonsile kungenzeka lingabi nenkani noma libe yisiphukuphuku. Kungaba yiphutha lakho ukukhetha ithoyizi elinombala okunzima ukubandlulula otshanini obuluhlaza otshanini bakho.

Lokho kusishiya nombuzo wokuthi ngabe izinja zisebenzisa amakhono okubona anemibala empeleni. Ukuthola okuningi mayelana nokuchofoza lapha.

UStanley Coren ungumbhali wezincwadi eziningi kufaka phakathi Kungani Izinja Zinamakhala Amanzi? Imibhalo Yomlando

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