Modulation of oculomotor control during reading of mirrored and inverted texts
Modulation of oculomotor control during reading of mirrored and inverted texts
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DOI：
10.1038/s41598-020-60833-6
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发表时间：
2020-03-06
影响因子：
4.6
通讯作者：
Engbert, Ralf
中科院分区：
文献类型：
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作者：
Chandra, Johan;Kruegel, Andre;Engbert, Ralf
当文本的空间布局偏离典型的显示时，可以探索阅读过程中认知过程和眼动过程之间的相互作用。在这项研究中，我们研究了在阅读具有实验操作布局的文本时的各种眼动测量（单词和字母方向的镜像反转文本以及颠倒和乱序文本）。虽然早期的研究报道了阅读操纵文本时的典型发现（例如，与正常文本相比，平均注视时间更长，平均扫视长度更短），但在上述文本布局下，在单词内着陆位置观察到的动眼肌瞄准的变化却知之甚少。在这里，我们对着陆位置进行了精确的分析，发现除了预期的阅读性能整体放缓之外，所谓的发射场效应也发生了实质性变化。具体来说，在以颠倒字母顺序（与整体阅读方向相反）阅读我们的操纵文本条件时，我们发现发射点效应降低，而在所有其他操纵文本条件下，我们观察到发射点效应增加。我们的研究结果清楚地表明，动眼肌系统在面对不寻常的阅读条件时具有高度的适应性。
The interplay between cognitive and oculomotor processes during reading can be explored when the spatial layout of text deviates from the typical display. In this study, we investigate various eye-movement measures during reading of text with experimentally manipulated layout (word-wise and letter-wise mirrored-reversed text as well as inverted and scrambled text). While typical findings (e.g., longer mean fixation times, shorter mean saccades lengths) in reading manipulated texts compared to normal texts were reported in earlier work, little is known about changes of oculomotor targeting observed in within-word landing positions under the above text layouts. Here we carry out precise analyses of landing positions and find substantial changes in the so-called launch-site effect in addition to the expected overall slow-down of reading performance. Specifically, during reading of our manipulated text conditions with reversed letter order (against overall reading direction), we find a reduced launch-site effect, while in all other manipulated text conditions, we observe an increased launch-site effect. Our results clearly indicate that the oculomotor system is highly adaptive when confronted with unusual reading conditions.