Eye Movement Studies of Visual Search
试验速览
- 阶段
- 不适用
- 状态
- 撤回
- 入组人数
- 50
- 试验地点
- 2
- 主要终点
- Eye Tracking Data
研究概览
简要总结
Using a noninvasive eye tracker, the investigators will measure how participants move their eyes to objects arrayed on a computer screen. Participants will be asked to find one element among many.
详细描述
The investigators measure how quickly and how accurately participants can move their eyes from a central fixation point to a target object arrayed with one or more distractor objects. A noninvasive eye tracker will be used to measure their eye movements. Participants may also be asked to make a decision about a feature of the target they have selected with a key press. Difficulty of the search for the target object and difficulty of the decision about a feature of the target object will be manipulated.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Basic Science
- 盲法
- None
盲法说明
Manipulation is within-participant. Participants view multiple visual search arrays in an experimental session. They will be masked with regards to the difficulty and timing manipulations until they experience them on a trial.
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Sona System users (open to the public)
排除标准
- •participants that fail the Ishihara color vision screening test
- •participants with acuity worse than 20/20 with or without correction
- •children under 18
- •adults over 50
结局指标
主要结局
Eye Tracking Data
时间窗: During 1-2 hour experimental session
Saccade Events, Fixation Events, Pupil Size
Response Data
时间窗: During 1-2 hour experimental session
Response Time, Error Rate
次要结局
未报告次要终点
研究者
Thomas J. Palmeri
Distinguished Professor of Psychology
Vanderbilt University