Measurement of 3D Visual Fatigue Using Event-Related Potential (ERP): 3D Oddball Paradigm

Rare tools to measure 3D visual fatigue that is critical in the study of 3D human factor have been examined for their reliability and validity. The purpose of the present research was to develop a paradigm to measure 3D visual fatigue using background EEG and ERP signals. We have developed "3D oddball paradigm" that revealed the effect of binocular parallax and presentation duration on 3D visual fatigue. Subjective 3D visual fatigue was also measured. Power of beta frequencies increased as watching duration increased and it was much stronger in 3D rather than in 2D condition. More importantly, P700 delayed as watching duration increased as well as in 3D rather than in 2D condition. Similar pattern of results was obtained in the measured subjective 3D visual fatigue. These results suggest that the 3D oddball paradigm would measure 3D visual fatigue correctly and reliably.