.png){kind=icon}
返回
Not so smart? Smart drugs increase the level but decrease the quality of cognitive effort
.png){kind=icon}
OA
AI
DOI：10.1126/sciadv.add4165.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The efficacy of pharmaceutical cognitive enhancers in everyday complex tasks remains to be established. Using the knapsack optimization problem as a stylized representation of difficulty in tasks encountered in daily life, we discover that methylphenidate, dextroamphetamine, and modafinil cause knapsack value attained in the task to diminish significantly compared to placebo, even if the chance of finding the optimal solution (similar to 50%) is not reduced significantly. Effort (decision time and number of steps taken to find a solution) increases significantly, but productivity (quality of effort) decreases significantly. At the same time, productivity differences across participants decrease, even reverse, to the extent that above-average performers end up below average and vice versa. The latter can be attributed to increased randomness of solution strategies. Our findings suggest that smart drugs increase motivation, but a reduction in quality of effort, crucial to solve complex problems, annuls this effect.
Keyword:
METHYLPHENIDATE
MODAFINIL
DOPAMINE
DISORDER
INVOLVEMENT
PERFORMANCE
RELEASE
BOYS
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。