izimvo: Inqaku elilula. I-Dopamine inefuthe kuyo yonke into eyenziwayo, nokuba yeyokuziphatha, imilinganiselo yokuziphatha, inqanaba lesisu, uyalibiza. Utshintsho kwi-dopamine receptors okanye amanqanaba e-dopamine kuya kuchaphazela umbono wakho kunye nokuziphatha. Iziyobisi ezinzulu ziguqula inkqubo ye-dopamine.
I-Dopamine, imichiza enendima ephambili ekusekweni kweemvakalelo zabantu, inokuba nefuthe elibanzi kubomi babo bemihla ngemihla, uphando lucebisa..
ExperienceIingxelo zibonisa ukuba ukuguqulwa kwamanqanaba emichiza esengqondweni kunempembelelo kwizigqibo ezenziwa ngabantu.
Enye ingcali yathi iziphumo zibonise ukubaluleka “kokuziva emathunjini” xa kusenziwa izigqibo zohlalutyo.
Uphononongo lwangoku lweBhayoloji lunokunceda ukuqonda ukuba ulindelo lolonwabo lunokonakala njani, umzekelo kubukhoboka.
Kulandela uphando lwangaphambili olwenziwa liqela leYunivesithi yaseLondon yaseLondon, ethi, isebenzisa ubuchule bokucinga, yafumanisa imiqondiso ebuchotsheni edityaniswe nokuba umntu uwonwabele kangakanani amava. Bafumanise ukuba umqondiso unokuphinda uqikelele ukhetho olwenziwe ngumntu.
Ngokurhanelwa ukuba umqondiso yi-dopamine, abaphandi baseka isifundo sokuvavanya indlela abantu abazenza ngayo izigqibo ezintsonkothileyo xa inkqubo yabo ye-dopamine iphazanyisiwe.
Abathathi-nxaxheba abangama-61 banikwe uluhlu lweendawo zokuchitha iholide ezingama-80, ukusuka eGrisi ukuya eThailand, kwaye bacelwa ukuba bazilinganise kwisikali esinye ukuya kwisithandathu.
" I-Dopamine inendima ekuboniseni ulonwabo olulindelekileyo kwiziganeko zexesha elizayo " I-Tali Sharot Wellcome Trust Centre ye-Neuro-imaging
Banikwa ipilisi yeswekile baza bacelwa ukuba bazicingele ngokwabo kwindawo nganye kwezingama-40.
Abaphandi baye balawula i-L-Dopa, ichiza elisetyenziswa kwisifo sikaParkinson ukunyusa ukugxila kwe-dopamine engqondweni, ngaphambi kokuba babacele ukuba bacinge ngezinye iiholide.
Bazilinganisa zonke iindawo kwakhona, yaye emva kosuku babuzwa ukuba bangathanda ukuya phi na, bephuma kuludwe oluhamba ngababini lweeholide.
I-dopamine eyongezelelweyo inike abantu ulindelo oluphezulu xa belinganisa iinketho zeeholide.
Kwaye oko kwaguqulelwa kukhetho lohambo abalwenzayo emva kosuku.
Inkokeli yokufunda uGqr Tali Sharot, ovela kwiZiko leWellcome Trust ye-Neuro-imaging e-UCL, uthe abantu benza izigqibo ezintsonkothileyo kunezinye izilwanyana, ezinje ngokuba nguwuphi umsebenzi omawuwuthathe kwaye uqale usapho, kwaye kubonakala ngathi i-dopamine idlala indima ebalulekileyo. kulo nto.
"Luhlobo lwendlela emfutshane kwingcinga yethu" UNjingalwazi uJohn Maule Leeds University
Uthe baye bamangaliswa ngamandla esiphumo abasibonileyo.
"Iziphumo zethu zibonisa ukuba xa sijonga ezinye iindlela xa sisenza izigqibo zokwenyani, i-dopamine inendima ekuboniseni uyolo olulindelekileyo kwezo zinto zinokwenzeka zekamva.
"Siye sisebenzisa lo mqondiso ukwenza ukhetho lwethu."
UGqr Sharot wongeze ukuba abakhobokileyo baqikelele kakhulu ulonwabo abaza kulufumana kwinto ethile, nokuba yiheroin okanye ungcakazo, kuba inkqubo yabo ye-dopamine yayingasebenzi, kwaye uphando lwamva nje luxhasa ukuba ukhetho abalwenzileyo luya kuphenjelelwa yilonto.
Ithuku lethuku
Wongeze wathi: "Kwiimeko ezininzi sinamayeza atshintsha ukusebenza kwe-dopamine, ke ukwazi ukuba sinokutshintsha ulindelo lwabantu kwaye ukuthatha kwabo izigqibo kunokutshintsha indlela esicinga ngayo ngokunika olu hlobo lwamayeza."
UNjingalwazi uJohn Maule, ingcali ekwenzeni izigqibo, eLeeds
Isikolo soShishino seYunivesithi, sathi kwiminyaka yakutshanje abantu baqalisile ukuqaphela ukwenza izigqibo ngokweemvakalelo okanye “zethuku lethuku” kwakubaluleke kakhulu kukhetho lomntu njengokuthatha izigqibo ezihlalutywayo.
“Naliphi na ixesha uya kuba nazo zombini ezi nkqubo ziqhubeka, ngoko ke akothusi ukubona ezi ziphumo, ngakumbi xa kufikwa kwizigqibo ezisekelwe emphefumlweni, njengeeholide.
"Luhlobo olufutshane kwindlela yethu yokucinga."
Ibali elivela kwi-BBC NEWS:
http://news.bbc.co.uk/go/pr/fr/-/2/hi/health/8357739.stm
Ipapashwe: 2010/01/08 17:16:11 GMT
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