托比普光谱仪：研究微扫视的有用工具？

The Tobii Pro Spectrum: A useful tool for studying microsaccades?

机构信息

Lund University Humanities Lab, Box 201, SE-221 00, Lund, Sweden.

Department of Psychology, Lund University Humanities Lab, Box 201, SE-221 00, Lund, Sweden.

出版信息

Behav Res Methods. 2021 Feb;53(1):335-353. doi: 10.3758/s13428-020-01430-3.

DOI:10.3758/s13428-020-01430-3

PMID:32705656

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7880983/

Abstract

Due to its reported high sampling frequency and precision, the Tobii Pro Spectrum is of potential interest to researchers who want to study small eye movements during fixation. We test how suitable the Tobii Pro Spectrum is for research on microsaccades by computing data-quality measures and common properties of microsaccades and comparing these to the currently most used system in this field: the EyeLink 1000 Plus. Results show that the EyeLink data provide higher RMS precision and microsaccade rates compared with data acquired with the Tobii Pro Spectrum. However, both systems provide microsaccades with similar directions and shapes, as well as rates consistent with previous literature. Data acquired at 1200 Hz with the Tobii Pro Spectrum provide results that are more similar to the EyeLink, compared to data acquired at 600 Hz. We conclude that the Tobii Pro Spectrum is a useful tool for researchers investigating microsaccades.

摘要

由于其报告的高采样频率和精度，Tobii Pro Spectrum 可能引起希望研究注视时小眼球运动的研究人员的兴趣。我们通过计算数据质量指标和微扫视的常见属性，并将这些与该领域目前使用最广泛的系统（即 EyeLink 1000 Plus）进行比较，来测试 Tobii Pro Spectrum 对微扫视研究的适用性。结果表明，与 Tobii Pro Spectrum 采集的数据相比，EyeLink 数据提供了更高的 RMS 精度和微扫视率。然而，这两个系统提供的微扫视具有相似的方向和形状，以及与先前文献一致的速率。与 600 Hz 采集的数据相比，Tobii Pro Spectrum 在 1200 Hz 采集的数据与 EyeLink 更相似。我们的结论是，Tobii Pro Spectrum 是研究微扫视的研究人员的有用工具。