Abstract When viewing stereoscopic 3D (S3D) displays, excessive binocular disparity is one of the major sources for the induced visual fatigue. Limiting the disparity within a certain range termed ‘comfort zone’ is a useful approach to alleviate the negative impact of viewing the S3D displays. Using the event-related potential (ERP) approach, we have previously showed that the differential P3 (DP3) signal evoked in an oddball task could be a useful neural indicator of the involvement of high-level cognitive functions in viewing S3D contents within the comfort zone compared to viewing 2D contents, despite of the similar subjective comfort of viewing experience for the two display conditions. It remains unclear whether the DP3 signal is sensitive enough for examination of the high-level processing when viewing S3D contents in different disparities within the comfort zone. Here, the DP3 signals were recorded while subjects performed an oddball task presented in S3D modality for three disparities (0.15, 0.45 and 0.76 arcdeg) within the comfort zone. Whereas the oddball task was of similar comfort by subjective measurement for different disparities, the DP3 signal showed monotonic delay in latency for increasing disparity, suggesting the capability of the DP3 signal for establishing a ‘cognitive comfort zone’ in terms of the high-level cognitive functions.

中文翻译：

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DP3 信号作为“舒适区”内不同深度立体内容的注意力处理神经指标

摘要 在观看立体 3D (S3D) 显示器时，过度的双眼视差是诱发视觉疲劳的主要来源之一。将差异限制在称为“舒适区”的特定范围内是减轻观看 S3D 显示的负面影响的有用方法。使用事件相关电位 (ERP) 方法，我们之前已经表明，在古怪任务中诱发的差分 P3 (DP3) 信号可能是高级认知功能参与舒适环境中观看 S3D 内容的有用神经指标。与观看 2D 内容相比，尽管两种显示条件下观看体验的主观舒适度相似。目前尚不清楚 DP3 信号是否足够敏感，以便在舒适区内查看不同视差的 S3D 内容时检查高级处理。在这里，当受试者在舒适区内执行以 S3D 模式呈现的三个差异（0.15、0.45 和 0.76 弧度）的奇怪任务时，记录了 DP3 信号。虽然通过对不同视差的主观测量，古怪任务具有相似的舒适度，但 DP3 信号在增加视差的延迟中表现出单调延迟，表明 DP3 信号在高级认知方面建立“认知舒适区”的能力职能。76 弧度）在舒适区内。虽然通过对不同视差的主观测量，古怪任务具有相似的舒适度，但 DP3 信号在增加视差的延迟中表现出单调延迟，表明 DP3 信号在高级认知方面建立“认知舒适区”的能力职能。76 弧度）在舒适区内。虽然通过对不同视差的主观测量，古怪任务具有相似的舒适度，但 DP3 信号在增加视差的延迟中表现出单调延迟，表明 DP3 信号在高级认知方面建立“认知舒适区”的能力职能。