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. 2019 Sep 10;9:12932. doi: 10.1038/s41598-019-49275-x

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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The cognitive scores assessed by the eye tracking system correlates with ADAS-Cog, FAB, and CDR scores. (A) The correlation between ADAS-Cog scores and the cognitive scores assessed by the eye tracking system. p < 0.0005, Spearman’s rank test, n = 34. (B) The correlation between FAB scores and the cognitive scores assessed by the eye-tracking system. p < 0.0005, Spearman’s rank test, n = 41. (C) The correlation between CDR scores and the cognitive scores assessed by the eye tracking system. **p < 0.01, ANOVA followed by the Tukey–Kramer multiple comparisons test, n = 43. Error bars represent SEM. ADAS-Cog, Alzheimer’s Disease Assessment Scale-cognitive subscale; FAB, Frontal Assessment Battery; CDR, Clinical Dementia Rating.