The Influence Of Visual Search And Background Semantic Information On Scene Memory

People live in various scenes every day,and all daily life cannot be separated from the appearance of corresponding scenes.Therefore,understanding how the vision system obtains and processes the scene information from the scene is a problem that has attracted much attention at present.People can't watch all the content at once,so they can expand the scope of vision by moving the line of sight,and finally focus on the specific position or information they need.This process is also called visual search.Individuals actively search for target objects from complex visual environment.It is an indispensable and important part of human daily life.The research on scene perception found that memory storage plays an important role in information search.In addition,the search process may also be influenced by the background semantic knowledge of the scene.Therefore,this study mainly discusses the influence of visual search and background semantic information on scene long-term memory.First,on the basis of previous studies,it deeply discusses the effect of visual search of scene changes on scene memory.Research 2 further explores the influence of background semantic information in scenes on visual search and scene memory.In study one,real scenes with and without changes are selected,and a change flicker paradigm is adopted to investigate the effect of change-aware visual search on scene memory and the effect of scene change experience on people's re-browsing and familiarity with the eye movement process in the scene through the learning phase and the detection phase.The experimental results show that there are significant differences in response time,correct rate,first gaze time and gaze time in real scenes with or without changes,but there is no significant difference in response time between learning stage and detection stage,but the difference in correct rate is significant.The results show that the search change behavior in the learning stage does not speed up the search change in the detection stage,but to a certain extent,it promotes the recall of the old scene,especially the scene that is aware of the change has deeper memory.Study2 explores the influence of scene semantic background information on scene memory on the basis of study 1.Research 2 controls real scene pictures to be the same as experiment 1 and operates scene semantic background information,which is alsodivided into a learning phase and a detection phase.The experimental results show that there are significant differences in the presence or absence of semantic background information,which is related to the complex information contained in scenes with semantic background leading to more attention,and there are significant differences in the recognition rate,gaze time,average gaze time and first gaze time of scenes with or without semantic background information.This shows that the semantic information of the scene background can promote the recognition of the scene,and also shows that even if the subjects have no memory of the changes in the learning stage and the scene,the semantic information obtained from the learning stage can also guide the attention and long-term memory of the scene.The purpose of this study is to explore whether visual search tasks with scene changes can enhance long-term and accidental memory traces.The results show that visual search has an important influence on the acquisition of long-term memory of real scenes,and the presence or absence of background semantic information has a great influence,which helps to understand the influencing factors and internal processing mechanism of scene memory,enriches the researches related to visual search and scene memory,and provides certain theoretical support for future researches on scene memory.