A study published this month suggests that rs1799971 also influences learning through positive reinforcement. The researchers behind this study tested if individuals with different versions of rs1799971 were more or less likely to continue choosing the right answer in a video game if they received reinforcement (in the form of a small cash prize) for correct answers.
The authors found that positive reinforcement prompted individuals with the AA genotype at rs1799971 to continue to choose the right answer over time. That is, positive reinforcement motivated these individuals to learn. In contrast, individuals with at least one copy of the G version at rs1799971 (AG or GG) were less motivated by positive feedback—these participants did not continue to choose the right answer over time.
看來吃軟不吃硬或是軟硬都不吃是一種遺傳!
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