Post-decision wagering objectively measures awareness
Post-decision wagering objectively measures awareness
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DOI：
10.1038/nn1840
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发表时间：
2007-02-01
影响因子：
25
通讯作者：
Cowey, Alan
中科院分区：
文献类型：
--
作者：
Persaud, Navindra;McLeod, Peter;Cowey, Alan
由于缺乏公认的意识衡量标准，使得在没有意识的情况下也能做出准确决定的说法备受争议。在这里，我们引入了一种新的客观的意识度量，即决策后投注。我们的研究表明，在盲视、爱荷华赌博任务和人工语法任务中，参与者未能通过在正确决策后下注来最大化现金收益。这表明，没有与传统的意识主观测量（口头报告和信心评级）相关的不确定性，参与者没有意识到他们的决定是正确的。决策后下注可以用来研究意识的神经关联。
The lack of an accepted measure of awareness has made claims that accurate decisions can be made without awareness controversial. Here we introduce a new objective measure of awareness, post- decision wagering. We show that participants fail to maximize cash earnings by wagering high following correct decisions in blindsight, the Iowa gambling task and an artificial grammar task. This demonstrates, without the uncertainties associated with the conventional subjective measures of awareness ( verbal reports and confidence ratings), that the participants were not aware that their decisions were correct. Post- decision wagering may be used to study the neural correlates of consciousness.