无意识元认知调控下的策略转换

通过两位数乘法算式答案判别任务研究无意识元认知调控下策略转换的的认知加工特征。整个算式答案判别任务分为两种策略使用情境：一种为只可以使用尾数策略的任务情境；另一种为既可以使用尾数策略，又可以使用奇偶策略的任务情境。实验结果表明：1）无意识元认知具有高选择性、高效性和高潜力，能在策略使用情境转变之后，快速察觉并选择使用更为简单、高效的奇偶策略；2）尾数策略使用的强大思维定势阻止奇偶策略的意识化，致使绝大多数被试未能发现任务情境的变化而在内隐状态下使用了奇偶策略；3）策略在内隐或外显状态下使用具有同等效力，策略内隐使用具有高效性和高潜力。

Strategy Selection in Unconsciousness Matecognition

According to the conventional viewpoint, strategy is usually viewed as metacognition processes under But with some researches revealing the separateness between strategy and conscious metacogniton, people began to relook on the relations between metacognition and strategy. The discovery of the unconsciousness of strategy made the study of relations of metaeognition and strategy expanding to unconsciousness field. Integrating past researches and viewpoints, the text supposes that metacogntional monitoring on strategy existing in both conscions and unconscious field. The present ERP study was conducted to investigate the neural correlates of strategy selection in matecognition by using event- related potentials（ ERPs）. Results showed that： 1 ）strategy can be selected in unconsciousness matecognition. 2） matecognition have the same three major characteristics to implicit learning（high selective capability, potentiality and density of transmission and storage.