Rapid serial blinks: An index of temporally increased cognitive load
Rapid serial blinks: An index of temporally increased cognitive load
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DOI：
10.1371/journal.pone.0225897
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发表时间：
2019-12-02
期刊：
影响因子：
3.7
通讯作者：
Maruno, Shunichi
中科院分区：
文献类型：
--
作者：
Nomura, Ryota;Maruno, Shunichi
近年来，具有视频呈现的自然观看设置已被用于神经学和心理学实验。然而，参与者的认知负荷可能会有所不同。在这项研究中，我们表明，快速连续眨眼（RSB）可以表明时间增加的认知负荷与高时间分辨率。我们提出了一种方法来创建一个个人的标准，为各自的参与者使用经验眨眼间隔。当我们专注于四个以上的连续眨眼时（即，三个眨眼间间隔），增加的RSB检测到参与者感到难以理解，表明对主题的理解较差。相比之下，在以前的研究中使用的一个恒定的标准在参与者之间不能检测参与者的理解。这些结果表明，每个参与者的认知特质的个体差异可能会扭曲实验结果。为了避免偏见，我们建议研究人员对实验组中个体不同的时间增加的认知负荷进行操作检查。
In recent years, natural viewing settings with video presentation have been used in neurological and psychological experiments. However, the experienced cognitive load may differ among participants. In this study, we show that rapid serial blinks (RSB) can indicate temporally increased cognitive load with high temporal resolution. We proposed a method to create a personal criterion for respective participants by using empirical blink intervals. When we focused on more than four serial blinks (i.e., three inter-blink intervals), an increased number of RSB detect participants who felt hard to understanding, indicating a poor understanding of the subject matter. By contrast, a constant criterion across participants used in previous study could not detect participant's understanding. These results suggest that individual differences in cognitive trait of each participant may skew the results of experiments. To avoid biases, we recommend researchers to perform an operational check on individually different temporally increased cognitive loads among experimental groups.