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HIGH SCHOOL

Science Experiments

Psychology

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Behavioral Science

Eye Movements in Cognitive Testing

Description

Eye tracking measures eye movements during cognitive testing. It is a non-invasive and sensitive tool that records movements of the eyes and helps describe a person's cognitive state.

A key eye movement is a saccade. A saccade is the movement between two fixation points, and it is one of the fast...

Transcript

眼动追踪是行为学研究中用于认知研究的最有用方法之一。该方法是一种非侵入性工具,可提供关于认知功能缺陷的高度敏感信息,而认知缺陷在神经系统疾病中十分常见。本视频将概述眼动追踪方法、通常测量的眼动类型,以及该工具在不同研究领域的应用。

首先,我们来了解眼动追踪所捕捉的几种眼动类型。眼睛的运动是人体内最快的运动,称为扫视。如蓝线所示,扫视可在任意方向发生,通常在毫秒级时间内从一个注视点移动到另一个注视点。当任务完成后,对特定目标的每次注视总时长可提供认知层面的洞察,揭示大脑处理目标内细微细节所需的时间。从一个注视点扫视至下一个注视点所花费的时间,称为扫视反应时间或潜伏期。这些反应可...

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