Departments of Ophthalmology Neurology, Children's Hospital, Harvard Medical School, Pilani, India.
Birla Institute of Technology and Science, Pilani, India.
Sci Rep. 2018 Nov 12;8(1):16701. doi: 10.1038/s41598-018-33792-2.
The extent to which the details of past experiences are retained or forgotten remains controversial. Some studies suggest massive storage while others describe memories as fallible summary recreations of original events. The discrepancy can be ascribed to the content of memories and how memories are evaluated. Many studies have focused on recalling lists of words/pictures, which lack the critical ingredients of real world memories. Here we quantified the ability to remember details about one hour of real life. We recorded video and eye movements while subjects walked along specified routes and evaluated whether they could distinguish video clips from their own experience from foils. Subjects were minimally above chance in remembering the minutiae of their experiences. Recognition of specific events could be partly explained by a machine-learning model of video contents. These results quantify recognition memory for events in real life and show that the details of everyday experience are largely not retained in memory.
过去的经历在何种程度上被保留或遗忘仍然存在争议。一些研究表明大量存储，而另一些研究则将记忆描述为原始事件易错的概要再现。这种差异可以归因于记忆的内容以及如何评估记忆。许多研究都集中在回忆单词/图片列表上，这些列表缺乏现实世界记忆的关键成分。在这里，我们量化了记住一小时真实生活细节的能力。我们在受试者沿着指定路线行走时记录视频和眼动，并评估他们是否能够将视频片段与其自身经历与干扰项区分开来。受试者在记住其经历的细节方面略高于平均水平。对特定事件的识别可以部分通过视频内容的机器学习模型来解释。这些结果量化了对现实生活中事件的识别记忆，并表明日常生活经验的细节在很大程度上没有保留在记忆中。
