The Research To Encoding And Retrieval Mechanism Of Recollection And Familiarity

The relationship of recollection and familiarity has always been the hot spot in the cognitive psychology research.In general, recollection refers to the "remember" items when the participants in the memory test. It is people to the specific information retrieval that studied before. And participants refers to "know" items which reflect as familiarity. It is people to evaluate the items overall similarity between the study and the test process, which is lack of source information but to produce the feeling of familiarity (Yonelinas,2002). Currently, the dissociation between recollection and familiarity remain controversial. But controversial main focus is to research the relationship of recollection and familiarity but has not ruled out implicit memory for them. Secondly, previous research is more of a focus on retrieval phase to recollection and familiarity with ERPs dissociation, which from the encoding phase research is less. Also from the perspective of encoding and retrieval relations to discuss the two components are rarely. Therefore, this paper using the ERP technology after removal of implicit memory to recollection and familiarity influence, to further explore in retrieval and encoding phase of processing mechanism difference of recollection and familiarity.Experiment one used DM paradigm and a forced-choice recollection paradigm, combined picture-words conversion design to remove the implicit memory. According to the participants’ test feedback, and the learning phase effectively is divided into three categories:the items which participants choose the old words and his self-confident degree shows remember (recollection), the items which participants choose the old words and his self-confident degree shows know(familiarity), the items which participants choose the words and his self-confident degree shows guess(forgotten). DM effect of recollection is heading for of ERP positive trend:500～700ms forehead region; 300～700ms frontal region; 300-700ms central region; 200～400ms parietal region; 200～700ms temporal region. DM effect of familiarity is showing 200-300ms and 500～700ms temporal region ERP positive trend and 200～300ms central region interaction effect. The experimental results show that the recollection and familiarity to keep their nerve physiological mechanism.Experiment two is using DM paradigm and a forced-choice recollection paradigm, combined pictures to study the relationship between recollection and familiarity. According to the participants’test feedback, and the learning phase effectively is divided into three categories:recollection, familiarity and forgotten. The results prove that a wide range of late time ERP positive trend of recollection but the frontal region of familiarity in the retrieval phase. The DM difference has gotten in the encoding phase. DM effect of recollection is heading for a wide range of late time ERP positive trend:300-1000ms forehead and frontal region; 500～1000ms central region; 600-1000ms temporal region; DM effect of familiarity is showing 500-700ms central region ERP positive trend and 400-500ms parietal region interaction effect. Experiments proved that the recollection and familiarity are two different kinds of machining process. Both of them are to keep their own characteristics.From the view of the relation of encoding and retrieval to recollection and familiarity for analysis:recollection exists the symmetry relations of encoding and retrieval; familiarity exists the asymmetric relations of encoding and retrieval.This shows that the recollection and familiarity is not the quantity of.difference, but quality differences. They are independent of machining process.