The pupil is faster than the corneal reflection (CR): Are video based pupil-CR eye trackers suitable for studying detailed dynamics of eye movements?
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- 作者：Ignace Hoogea ; i.hooge@uu.nl" class="auth_mail" title="E-mail the corresponding author ; Kenneth Holmqvistb ; c ; Marcus Nyströ ; mb
- 关键词：Saccades ; Pupil ; Corneal reflection
- 刊名：Vision Research
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：128
- 期：Complete
- 页码：6-18
- 全文大小：1579 K
文摘
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Many video based eye trackers use the p-CR (pupil minus corneal reflection) technique.
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The dynamic properties of the pupil and the CR are different during a saccade.
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The combined p-CR signal overestimates saccade peak velocity and post saccadic oscillation.
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The p-CR signal is not suitable for studying saccade dynamics.