Studies on a new N2_ wave of stereoscopic depth cognition

Perceptive and cognitive mechanism evoked information from stereoscopic depth stimulation was studied in the article to understand the fundamentals of the brain information processing system. This is related to the cognitive process of cognitive psychology. We investigated how to get perception from recognizable objects and surroundings by the subject and worked on the cognitive information. Using a multi-channel of a visual cortical evoked potential (VCEP) collecting system for this research, we studied the mechanisms of the brain function and stereoscopic information processing, and identified a new N2_wave of the VCEP as the characteristic response to the disparity depth stimuli. The VCEP of vary visual functional areas evoked by the specially designed RDS uncovered that the information processing of the disparity depth perception starts at the striate cortex but ends at the advanced cortical areas. Besides, we employed several independent methods to prove the new N2_wave existence. The result also convincingly proved the supposition, which proposed that the depth cognition of stereoscopic vision is a dynamic multi-factor process which synchronizes cooperated processing and the consequence of depth perception in advanced cortical areas may involve biological feedback in the whole process of visual signal processing.