Comparison of DP3 Signals Evoked by Comfortable 3D Images and 2D Images - an Event-Related Potential Study using an Oddball Task.
Comparison of DP3 Signals Evoked by Comfortable 3D Images and 2D Images - an Event-Related Potential Study using an Oddball Task.
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舒适 3D 图像和 2D 图像引起的 DP3 信号比较 — 使用 Oddball 任务进行事件相关电位研究
DOI：
10.1038/srep43110
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发表时间：
2017-02-22
影响因子：
4.6
通讯作者：
Chen J
中科院分区：
文献类型：
--
作者：
Ye P;Wu X;Gao D;Liang H;Wang J;Deng S;Xu N;She J;Chen J
双目水平视差是观看立体电视引起视疲劳的重要因素。在“舒适区”内具有差异并在深度方向上保持静止的立体图像被认为是2D图像，对观众来说是舒适的。然而，在处理这种舒适的立体图像和二维图像时，大脑活动的差异仍然很少被研究。DP3（差分P3）信号是一种事件相关电位（ERP）信号，它指示注意过程，通常由古怪任务中标准刺激中的古怪目标刺激引起。本研究发现，与2D图像相比，舒适的3D图像引发的DP3信号在头皮前部和中部区域表现出延迟的峰值潜伏期和增强的峰值幅度。这一发现表明，尽管立体图像在主观上是舒适的，但与处理二维图像相比，更多的注意力资源被用于处理立体图像。
The horizontal binocular disparity is a critical factor for the visual fatigue induced by watching stereoscopic TVs. Stereoscopic images that possess the disparity within the ‘comfort zones’ and remain still in the depth direction are considered comfortable to the viewers as 2D images. However, the difference in brain activities between processing such comfortable stereoscopic images and 2D images is still less studied. The DP3 (differential P3) signal refers to an event-related potential (ERP) component indicating attentional processes, which is typically evoked by odd target stimuli among standard stimuli in an oddball task. The present study found that the DP3 signal elicited by the comfortable 3D images exhibits the delayed peak latency and enhanced peak amplitude over the anterior and central scalp regions compared to the 2D images. The finding suggests that compared to the processing of the 2D images, more attentional resources are involved in the processing of the stereoscopic images even though they are subjectively comfortable.