The influence on cognitive processing from the switches of shooting angles in videos of real-world events: an ERP study.

This work mainly focuses on the influence from switches of shooting angles in videos during the cognitive processing in the human brain. In the experiment we used the videos with switches of shooting angles as materials and compared the ERPs elicited by the switch frames and the non-switch frames in the videos, it was found that when subjects were asked to pay attention to the video contents, the switch frames would trigger P3a-RON waveforms, but no N400 waveform was found in the ERP results. This showed that when subjects were concerned with the video contents, the switches of shooting angles would distract their attention from the video contents, but as long as the semantic meaning of the videos were coherent, the switches of shooting angles would not lead to significant difficulties in semantic comprehension. At the same time, the experimental results also further proved that the P3a and RON generally reflect the processing of task-irrelevant visual stimuli.