Persoanele cu acest genotip au o activitate cerebrală mai puternică în zona cortexului prefrontal, activitate ce are probabil legătură cu metabolismul dopaminei.
„Dopamina are legătură cu centrii recompensei, aşa că probabil, unii oameni pot lua decizii mai rapid pentru că au mai multă dopamină sintetizată în cortexul prefrontal”, a susţinut Paul Sanberg, profesor de neurochirugie la University of South Florida.
Poate ajuta la tratatea bolnavilor de Parkinson
Acest studiu publicat în ultimul număr al revistei Proceedings of the National Academy of Sciences (PNAS) ar putea contribui la apariţia unor noi tratamente pentru persoanele care suferă de Parkinson, sau de maladii ce sunt influenţate de cantitatea de dopamină. În cadrul acestui studiu realizat la Institutul Max Planck din Berlin, 26 de voluntari, cu vârsta între 20 şi 30 de ani, au intrat într-un joc în care trebuiau să acumuleze puncte alegând cea mai profitabilă dintre patru variante. Câştigurile acestora erau modificate în funcţie de comportamentul jucătorilor, forţându-i pe aceştia să se adapteze rapid la situaţii noi. Reuşind să înveţe mai rapid din propriile greşeli, sau din greşelile colegilor de joc, voluntarii cu o versiune a genei COMT denumită Val/Val, au câştigat mai multe puncte decât participanţii cu versiunea Met/Met a aceleiaşi gene. Gena COMT este răspunzătoare de crearea unor enzime care distruge dopamina şi alţi neurotransmiţători.
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