Research And Complex Visual Scene Recognition Process Is Based On Simple Graphics Image Information

More than70%of the sensory information which we obtained from the outside world is visual information. So studies on visual perception are of great importance for the exploration of the mystery of our brain. We usually use images as stimulus material to study visual perception. In most condition of research with different purpose, we need to control and process the image information of the stimulus images. The experiments on "study of the cognitive process under unconscious condition of the close figure" and "study of rapid detection of object in natural scene " we describe in this article are based on image information and use simple figures and images of complex visual scene as stimulus material.The first part of this article:We use simple "close" and "open" figures whose image information, such as luminous lux, orientation cues, spatial frequency components, are specially processed as stimulus material. QUEST is used to control the luminance of the stimulus images. The experiments are designed with Continuous Flash Suppression (CFS) paradigm. Event-Related Potential (ERP) data and behavioral data are collected in these experiments. After studying on these data we come to the following conclusion:The activation difference between "open" and "closed" figures are different during periods of suppressing compared to periods of conscious perception.The rest part of this article:This time we use images with animal in it and natural scene only images as stimulus material. SHINE toolbox is used to do histogram matching to all the images, by which we can make sure that the histograms of all stimulus images are the same. Instead of controlling the luminance QUEST control the images’contrast in the experiment this time. The experiment is designed with Continuous Flash Suppression (CFS) paradigm. Event-Related Potential (ERP) data and behavioral data are collected in this experiment. After studying on these data we come to the following conclusion:The activation difference between "animal" and "no-animal" images in natural scene are different during periods of suppressing compared to periods of conscious perception.