Neural correlates for feeling-of-knowing: An fMRl parametric analysis
Neural correlates for feeling-of-knowing: An fMRl parametric analysis
复制标题
DOI：
10.1016/s0896-6273(02)00939-x
复制
发表时间：
2002-09-26
期刊：
影响因子：
16.2
通讯作者：
Miyashita, Y
中科院分区：
文献类型：
--
作者：
Kikyo, H;Ohki, K;Miyashita, Y
“知道的感觉”是一种在回忆一个单词之前就知道这个单词的主观感觉，它为我们理解人类元记忆系统的机制提供了线索。我们基于回忆-判断-识别范式研究了FOK的神经关联。使用事件相关功能磁共振成像与参数分析。我们发现，随着FOK的增大，左背外侧、左前、双侧下和内侧前额叶皮层的激活显著增加，即使去除反应潜伏期的潜在混淆因素，激活仍然显著。此外，我们还证明了右侧额下回的FOK区域和左侧额下回的FOK区域的一个子集不参与成功的回忆过程，这表明它们在元记忆加工中起着特殊的作用。
The "feeling-of-knowing" (FOK) is a subjective sense of knowing a word before recalling it, and the FOK provides us clues to understanding the mechanisms of human metamemory systems. We investigated neural correlates for the FOK based on the recall-judgment-recognition paradigm. Event-related functional magnetic resonance imaging with a parametric analysis was used. We found activations in left dorsolateral, left anterior, bilateral inferior, and medial prefrontal cortices that significantly increased as the FOK became greater, and the activations remained significant even when the potentially confounding factor of the response latency was removed. Furthermore, we demonstrated that the FOK region in the right inferior frontal gyrus and a subset of the FOK region in the left inferior frontal gyrus are not recruited for successful recall processes, suggesting their particular role in metamemory processing.