Abstract
Multiple object tracking (MOT) has been used extensively in studies on visual attention and working memory in a dynamic environment. However, the majority of MOT research findings have been collected using two dimensional (2D) displays. Given the lack of ecological connection between 2D MOT displays and 3D real-world visual scenes, the current study aims to investigate the effect of 3D depth information on tracking performance of multiple objects moving in monocular 3D environments. Specifically, the MOT displays were generated in a way to simulate different viewing positions from an observer’s perspective. It was found that the MOT tracking performance significantly decreased with increased target number and shallow viewing angles as small as 15°. The results suggest that 3D MOT programs that mimic more ecological viewing angles could be a better indicator of tracking performance in real-world conditions.
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