范畴三段论推理中信念偏差效应的ERP研究

An ERP Study on the Belief Bias Effect in Syllogistic Reasoning

以具体范畴三段论作为实验材料,探讨了推理过程中信念偏差效应的脑内时程动态变化。结果发现:有效式下,信念抑制和信念促进诱发的ERP波形趋于一致。无效式下,与基线任务相比,信念抑制和信念促进在300-500ms和1000-1600ms诱发了更正的ERP成分,可能反映了该推理不同的加工阶段,同时,300-600ms内,在大脑额中部信念抑制比信念促进诱发一个更正的ERP成分(P480),可能反映了关系整合阶段对自动激活的知识信念的抑制。

High-density event-related potentials （ERPs） were recorded to examine the electrophysiologic correlates of the belief the bias effect in syllogistic reasoning. The results showed that there were no amplitude modulations of waves elicited by VBBI and VBBF. IBBI and IBBF both elicited a more positive ERP deflection than did BST in the 300 - 500 and 1000 - 1600ms time windows, which probably reflects reasoning-related processes. Meantime,-IBBI elicited a more positive ERP deflection （P480） than did IBBF across central - frontal cortical regions during the 300 - 600 ms interval, which most likely reflects an inhibition to beliefs during the relation integration stage.