DP3 signal as a neuro-indictor for attentional processing of stereoscopic contents in varied depths within the 'comfort zone'
DP3 signal as a neuro-indictor for attentional processing of stereoscopic contents in varied depths within the 'comfort zone'
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DOI：
10.1016/j.displa.2020.101953
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发表时间：
2020-07-01
期刊：
影响因子：
4.3
通讯作者：
Chen, Jun
中科院分区：
文献类型：
--
作者：
Ye, Peng;Wu, Xiang;Chen, Jun
在观看立体3D（S3D）显示器时，过大的双眼视差是引起视疲劳的主要原因之一。将视差限制在称为"舒适区"的特定范围内是减轻观看S3D显示器的负面影响的有用方法。使用事件相关电位（ERP）的方法，我们以前已经表明，差分P3（DP3）信号诱发的一个古怪的任务可能是一个有用的神经指标的参与高层次的认知功能在观看S3D内容的舒适区内相比，观看2D内容，尽管类似的主观舒适度的观看体验的两个显示条件。目前尚不清楚DP3信号是否足够灵敏，以检查在舒适区内的不同视差中观看S3D内容时的高级处理。在这里，DP3信号被记录，而受试者执行一个古怪的任务，在S3D模式的三个差异（0.15，0.45和0.76弧度）的舒适区。而oddball任务是相似的舒适度，主观测量不同的差距，DP3信号表现出单调延迟的延迟增加的差距，这表明DP3信号的能力，建立一个“认知舒适区”的高层次的认知功能。
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.