Abstract:

To study the origin, development,subject structure and research direction of cognitive science,the definition of cognition based on process is proposed,and the origin of cognitive science is discussed.The development of cognitive science is divided into computation theory stage,symbols processing theory stage and multitheory stage,then the subject structure and research direction of cognitive science are introduced,the main research directions of cognitive science include cognitive model,storage model of the brain and cognitive computation.The definition of cognition based on process is able to embody the essence of cognition.Therefore,the cognitive model based on single unit event is able to simulate the cognition,and it is an optimal cognitive model. 
   

Key words: cognitive science;cognitive model;storage model of the brain;cognitive computation