To better understand the impact of different screen sizes in cognitive training, study subjects performed an adaptive training task at three separate visual angles using a head-mounted display (HMD). Cognitive load was assessed using EEG and compared with task performance (accuracy and response time) for each condition. While previous studies found performance benefits corresponding to increased screen size in memory and learning tasks, our results suggest such benefits may only apply up to a visual angle of approximately 20°, after which increases in size become inversely correlated with task performance.

中文翻译：

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屏幕尺寸对认知训练任务表现的影响：HMD 研究

为了更好地了解不同屏幕尺寸对认知训练的影响，研究对象使用头戴式显示器 (HMD) 在三个不同的视角执行自适应训练任务。使用 EEG 评估认知负荷，并与每个条件的任务表现（准确性和响应时间）进行比较。虽然之前的研究发现，内存和学习任务中屏幕尺寸的增加会带来性能优势，但我们的结果表明，这种优势可能仅适用于大约 20° 的视角，之后尺寸的增加与任务性能呈负相关。