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当前位置: Science » 大脑&行为 » Science:象棋比赛暗示每天做决定会越来越冒险

Science:象棋比赛暗示每天做决定会越来越冒险

摘要 : 早起的鸟儿和晚睡的猫头鹰拥有截然不同的日常习惯。不过,一项最新研究表明,两者都有一个共同特点:随着时间一分一秒地过去,它们的决策存在更多风险。

 

早起的鸟儿和晚睡的猫头鹰拥有截然不同的日常习惯。不过,一项最新研究表明,两者都有一个共同特点:随着时间一分一秒地过去,它们的决策存在更多风险。

神经科学家分析了一个在线数据库中100多万次国际象棋对局的棋步质量。研究人员通过估算99名多产棋手下每步棋花费的时间及其在导致胜利中的有效性,绘制了他们作出的决策地图。上述因素会影响诸如在日前于美国纽约举行的世界国际象棋锦标赛中快速进行的决胜局等关键棋局。

不出所料,早起的人在上午下更多的棋,而“夜猫子”在黄昏和其他时间更加活跃。不过,两组选手均会在大清早和各自起床后不久花更多时间走每步棋并且作出更好的决策。到了晚上,他们下棋的速度加快了2.5%,同时棋步的质量平均下降了相同幅度。

此项研究揭示了决策策略中一种普遍存在的转变,即从早上的安全“打法”转变成太阳落山时更加危险(更快且没有那么成功)的举动。研究人员将在下个月出版的《认知》杂志上报告这一成果。

该发现表明,人们可能在一天的早些时候和起床后不久对自己的决策拥有更大的控制权,而这同喜欢在何时睡觉无关。随着人们越来越累,身体对睡眠的需求会对决策质量产生决定性影响,无论人们觉得自己的注意力可能有多集中。

原文链接:

You make more risky choices as the day wears on, chess study suggests

原文摘要:

Early birds and night owls have radically different daily habits. But a new study suggests they both share one trait: As the clock ticks, their decisions get dicey. Neuroscientists examined the quality of moves in more than one million games of chess in an online database. They charted the decisions of 99 prolific players by gauging the time they took for each move and its usefulness in leading to a victory—factors that impact games like high-speed tiebreakers in the World Chess Championships, which took place in New York earlier this week. As expected, early risers played more games in the morning, wheras night owls were active at dusk and beyond. But both sets of players took longer for each move and made better game choices early in the day and soon after they woke up. Come evening, their game play quickened by 2.5%, while their moves grew less effective by the same margin on average. The study revealed a pervasive switch in decision strategy from safe play in the morning to riskier—faster and less successful—moves at sundown, the team will report next month in Cognition. The finding shows we may have greater control over our decisions earlier in the day and soon after we wake up, regardless of when we prefer to sleep. As we grow tired, our bodies’ need for sleep could dictate the quality of our choices—no matter how focused we think we might be.

来源: Science 浏览次数:0

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