Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, USA.
Center for Vital Longevity and School of Behavioral and Brain Sciences, University of Texas at Dallas, Dallas, Tx, USA.
Cogn Neurosci. 2022 Jul;13(3-4):165-170. doi: 10.1080/17588928.2022.2033713. Epub 2022 Feb 11.
We assessed whether neural activity in the hippocampus dissociates according to whether memory test items elicit a subjective sense of recollection or accurate retrieval of contextual information. We reanalyzed a previously acquired dataset from a study in which participants made both objective (source memory for spatial context) and subjective (Remember-Know) judgments for each test item. Results indicated that the hippocampus was exclusively sensitive to the amount of contextual information retrieved, such that accurate source memory judgments were associated with greater activity than inaccurate judgments, regardless of Remember/Know status. The findings add to the evidence that the hippocampus is insensitive to the subjective experience of recollection, but supports retrieval of contextual information.
我们评估了海马体中的神经活动是否会根据记忆测试项目是否引起主观的回忆感或准确检索上下文信息而分离。我们重新分析了之前一项研究中获取的数据集，在该研究中，参与者对每个测试项目都进行了客观（空间上下文的来源记忆）和主观（记得-知道）判断。结果表明，海马体仅对检索到的上下文信息量敏感，因此准确的来源记忆判断与不准确的判断相比，与更大的活动相关，无论记住/知道状态如何。这些发现增加了证据表明，海马体对回忆的主观体验不敏感，但支持对上下文信息的检索。
