IZIMPENDULO: Kubonakala sengathi ukuqeqeshwa kwememori yokusebenza kungandisa i-dopamine ne-frontal cortex esebenzayo. Bobabili banqabile ukulutha.
Agasti 5, 2011 ku Psychology & Psychiatry
Kuyaziwa ukuthi ukuqeqeshwa kungathuthukisa inkumbulo yokusebenza. Esicwaningweni esisha seSayensi, abacwaningi baseKalinsinska Institutet, University of Umeå, Åbo Akademi University, kanye neYunivesithi yaseTurku babonisa okokuqala ukuthi ukuqeqeshwa kokusebenza komsebenzi kuhambisana nokukhululwa okwedlulele kwe-neurotransmitter dopamine ezindaweni ezithile zobuchopho.
"Ukuqeqeshwa kokukhumbula ukusebenza kuholele ekukhulisweni kokukhishwa kwe-dopamine e-caudate, isifunda esingezansi kwe-neocortex, lapho ukungena kwe-dopaminergic kukhulu kakhulu", kusho uLars Bäckman, uProfesa eKarolinska Institutet, kanye nomunye wososayensi abalandela lolu cwaningo. "Lokhu kuphawula kubonisa ukubaluleka kwe-dopamine ekwenzeni ngcono ukusebenza kwememori yokusebenza."
Esifundweni, amadoda ase-Finnish ase-10 aqeqeshwe ekuvuseleleni inkumbulo yokusebenzela amasonto amahlanu ngokusebenzisa umsebenzi wokubhala incwadi. Abahlanganyeli banikezwe nge-7 ezincwadini ze-15 phakathi nemizuzu ye-45 kathathu ngesonto esikrinini esivaliwe ngemuva kwesethulo. Umsebenzi kwakuwukukhumbula izinhlamvu ezine zokugcina ngokulandelana ngokuhlelekile. (Uhlelo lokuqeqesha lungatholakala ku-intanethi, bheka ukuxhumana okuqhubekayo)
Uma kuqhathaniswa neqembu lokulawula elingatholanga ukuqeqeshwa, iqembu eliqeqeshwe libonise ukuthuthukiswa kancane kancane kokusebenza komemori. Imiphumela evela ekutheni i-PET ibonise ukukhululwa okwedlulele kwe-dopamine ngemuva kokuqeqeshwa. Ngaphezu kwalokho, ukukhululwa kwe-dopamine kubonwe ngesikhathi sencwadi-yememori ngaphambi kokuqeqeshwa; lokhu kukhululwa kwanda ngokuphawulekayo ngemuva kokuqeqeshwa.
Ngaphezu kwalokho, ukuthuthukiswa ngemuva kokuqeqeshwa kuboniswe emsebenzini ongafundiwe okudingayo nokuvuselela.
"Lokhu okutholakele kuphakamisa ukuthi ukuqeqeshwa kuthuthukise inkumbulo yokusebenza ngokujwayelekile", kusho uSolwazi Lars Nyberg eUmea University.
Kunikezwe i-Karolinska Institutet
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