Feeling-of-Knowing and Feeling-of-not-Knowing: A Dual-process Hypothesis on Metamemory Judgments
知道感与不知道感：一个关于元记忆判断的双过程假设

Although studies on feeling-of-knowing(FOK) generally assume it is a continuum that varies from weak to strong,recent neuroimaging studies indicated FOK and feeling-of-not-knowing(FOnK) involved different neural networks.This suggested FOK and FOnK might be supported by distinct cognitive brain processes and implied a dual-process model of FOK.In this paper,some theoretical aspects of this model were considered.Different from the accessibility model that postulated FOK relied on the accessibility of retrieved information,dual-process model proposed the accessible information were to be evaluated and discriminated by metamemory mechanism.The task-related part of the information was accepted and taken in the metamemory prediction,constituting the positive FOK,whereas the task-unrelated part of the information was rejected and excluded from the metamemory prediction,constituting the negative FOnK.The behavioral evidences that supported the dual-process model were also discussed.