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TNO立体视测试对立体视阈值的高估并非由于整体立体视。

Overestimation of stereo thresholds by the TNO stereotest is not due to global stereopsis.

作者信息

Vancleef Kathleen, Read Jenny C A, Herbert William, Goodship Nicola, Woodhouse Maeve, Serrano-Pedraza Ignacio

机构信息

Institute of Neuroscience, Newcastle University, Newcastle-upon-Tyne, UK.

Faculty of Psychology, Complutense University of Madrid, Madrid, Spain.

出版信息

Ophthalmic Physiol Opt. 2017 Jul;37(4):507-520. doi: 10.1111/opo.12371. Epub 2017 Mar 23.

DOI:10.1111/opo.12371
PMID:28337792
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5516234/
Abstract

PURPOSE

It has been repeatedly shown that the TNO stereotest overestimates stereo threshold compared to other clinical stereotests. In the current study, we test whether this overestimation can be attributed to a distinction between 'global' (or 'cyclopean') and 'local' (feature or contour-based) stereopsis.

METHODS

We compared stereo thresholds of a global (TNO) and a local clinical stereotest (Randot Circles). In addition, a global and a local psychophysical stereotest were added to the design. One hundred and forty-nine children between 4 and 16 years old were included in the study.

RESULTS

Stereo threshold estimates with TNO were a factor of two higher than with any of the other stereotests. No significant differences were found between the other tests. Bland-Altman analyses also indicated low agreement between TNO and the other stereotests, especially for higher stereo threshold estimates. Simulations indicated that the TNO test protocol and test disparities can account for part of this effect.

DISCUSSION

The results indicate that the global - local distinction is an unlikely explanation for the overestimated thresholds of TNO. Test protocol and disparities are one contributing factor. Potential additional factors include the nature of the task (TNO requires depth discrimination rather than detection) and the use of anaglyph red/green 3D glasses rather than polarizing filters, which may reduce binocular fusion.

摘要

目的

与其他临床立体视测试相比，TNO立体视测试反复显示出高估了立体视阈值。在本研究中，我们测试这种高估是否可归因于“整体”（或“独眼的”）和“局部”（基于特征或轮廓）立体视之间的区别。

方法

我们比较了一种整体临床立体视测试（TNO）和一种局部临床立体视测试（兰多环）的立体视阈值。此外，在设计中增加了一项整体和一项局部心理物理学立体视测试。149名4至16岁的儿童纳入了该研究。

结果

TNO的立体视阈值估计值比其他任何立体视测试高出两倍。其他测试之间未发现显著差异。布兰德-奥特曼分析也表明TNO与其他立体视测试之间的一致性较低，尤其是对于较高的立体视阈值估计值。模拟表明，TNO测试方案和测试视差可以解释这种效应的一部分。

讨论

结果表明，整体-局部区别不太可能是TNO阈值高估的原因。测试方案和视差是一个促成因素。潜在的其他因素包括任务的性质（TNO需要深度辨别而不是检测）以及使用红/绿互补色3D眼镜而不是偏振滤光片，这可能会降低双眼融合。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90bb/5516234/b3af69af6202/OPO-37-507-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90bb/5516234/40a09d19f4ce/OPO-37-507-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90bb/5516234/12fc6be8ac3e/OPO-37-507-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90bb/5516234/228b51318ad5/OPO-37-507-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90bb/5516234/962c3581668d/OPO-37-507-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90bb/5516234/ddbff4f80f69/OPO-37-507-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90bb/5516234/b3af69af6202/OPO-37-507-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90bb/5516234/40a09d19f4ce/OPO-37-507-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90bb/5516234/12fc6be8ac3e/OPO-37-507-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90bb/5516234/228b51318ad5/OPO-37-507-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90bb/5516234/962c3581668d/OPO-37-507-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90bb/5516234/ddbff4f80f69/OPO-37-507-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90bb/5516234/b3af69af6202/OPO-37-507-g006.jpg

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