Research On Cognitive Load Of Graphic Unit In Mobile Phone Interface

We are in an era of information explosion,There are tens of thousands of information every day.On the one hand,we enjoy the convenience brought by the information revolution.On the one hand,it is also receiving more and more cognitive load.Lack of attention,excessive depletion of brain resources is a major problem facing our human beings.We can not prevent the progress of the times,but can be used to design our visual materials,so that they become more intuitive and easy to use.In particular,the use of smart phones has occupied a large number of our daily life,the basic necessities of life can be used in the transaction through mobile phones.This paper focuses on the research of the mobile phone interface,through the subjective research combined with objective EEG experimental method,the specific application of the interface of a graphic unit cognitive load related research.To a particular pattern of unit 12306 China official railway ticket software interface in the mobile phone terminal as an example,specifically from the original interface problems,and then discusses the interface layout information and the relationship between the size of the text,word and brain weight change extraneous cognitive load.Focus group research method mainly uses the subjective set specific task research and existing knowledge learning objective consolidation;EEG experiment is the oddball paradigm,combining EEG data and behavioral data,analysis and comparison of the amplitude and latency changes of N200 components,P300 components under the different tasks.The experimental results show that in the early stage of ERP,the amplitude of N200 is positively correlated with the degree of deviation of the target stimulus and the standard stimulus,and the amplitude of N200 is enhanced due to the repetition of Chinese characters.Into the deep processing process,the cognitive load was positively P300 components induced by the amplitude of the target stimulus and the specific graphic unit,located on the left side of the interface module information caused by the earliest voluntary attention of subjects,the processing time is short,pay attention to psychological and cognitive resources also need to invest compared to other,less.According to the characteristics of the module,the relationship between different font size,word weight and font information layout and cognitive load is studied.Because the average amplitude and latency of the P300 component and the N200 component on the six electrodes have no significant effect,the conclusion can be summarized as a whole.The final results of the combined research method of subjective and objective conclusion,appropriate to increase the font size and bold font can reduce the cognitive resources user input,layout more balanced interface can also reduce extraneous cognitive load of the user.According to the specific application of software,it is necessary to analyze the weight according to the function,and put the important information in the most easily identifiable position.In addition,this paper also puts forward a balanced design proposal for the research case,through the adjustment of the design of different graphic units,while the convenience of new users and experienced users.The research results of this paper can not only provide a reference for the interface of the train information interface,but also can be applied to other interface design.In short,the rational allocation of information location,quantity and characteristics,can avoid the phenomenon of cognitive overload,thereby improving the user experience in the process of use.