Gaze Amplifies Value in Decision Making
Gaze Amplifies Value in Decision Making
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DOI：
10.1177/0956797618810521
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发表时间：
2019-01-01
影响因子：
8.2
通讯作者：
Krajbich, Ian
中科院分区：
文献类型：
--
作者：
Smith, Stephanie M.;Krajbich, Ian
在做决定时，人们倾向于选择他们看得更多的选项。一个尚未回答的问题是，注意力如何影响选择过程：它是放大了所看选项的主观价值，还是增加了一个恒定的、与价值无关的偏见。为了解决这个问题，我们检查了6个眼动追踪研究（Ns = 39，44，44，36，20和45，分别）的选择数据，以表征选择过程中的价值和凝视之间的相互作用。我们发现，选项的总和值影响每个数据集的反应时间和大多数数据集中的凝视选择相关性，这与注意力在选择过程中的放大作用一致。我们的研究结果表明，与使用小组习得刺激的任务相比，这种放大效应在使用大组熟悉刺激的任务中更加明显。
When making decisions, people tend to choose the option they have looked at more. An unanswered question is how attention influences the choice process: whether it amplifies the subjective value of the looked-at option or instead adds a constant, value-independent bias. To address this, we examined choice data from six eye-tracking studies (Ns = 39, 44, 44, 36, 20, and 45, respectively) to characterize the interaction between value and gaze in the choice process. We found that the summed values of the options influenced response times in every data set and the gaze-choice correlation in most data sets, in line with an amplifying role of attention in the choice process. Our results suggest that this amplifying effect is more pronounced in tasks using large sets of familiar stimuli, compared with tasks using small sets of learned stimuli.