Experimental Psychology, Justus Liebig Universität, Giessen, Germany.
J Vis. 2020 Sep 2;20(9):13. doi: 10.1167/jov.20.9.13.
Recent findings revealed consistent individual differences in fixation tendencies among observers free-viewing complex scenes. The present study aimed at (1) replicating these differences, and (2) testing whether they can be estimated using a shorter test. In total, 103 participants completed two eye-tracking sessions. The first session was a direct replication of the original study, but the second session used a smaller subset of images, optimized to capture individual differences efficiently. The first session replicated the large and consistent individual differences along five semantic dimensions observed in the original study. The second session showed that these differences can be estimated using about 40 to 100 images (depending on the tested dimension). Additional analyses revealed that only the first 2 seconds of viewing duration seem to be informative regarding these differences. Taken together, our findings suggest that reliable individual differences in semantic salience can be estimated with a test totaling less than 2 minutes of viewing duration.
最近的研究结果表明，在自由观看复杂场景时，观察者的注视倾向存在一致的个体差异。本研究旨在：(1) 复制这些差异，以及 (2) 测试是否可以使用更短的测试来估计这些差异。总共有 103 名参与者完成了两次眼动跟踪测试。第一次测试是对原始研究的直接复制，但第二次测试使用了更小的图像子集，旨在有效地捕捉个体差异。第一次测试复制了原始研究中观察到的五个语义维度上的大且一致的个体差异。第二次测试表明，这些差异可以使用大约 40 到 100 张图像（取决于测试的维度）来估计。进一步的分析表明，只有前 2 秒的观看时间似乎与这些差异有关。总的来说，我们的研究结果表明，使用总观看时间不到 2 分钟的测试，可以可靠地估计语义显著性方面的个体差异。
