EVENT-RELATED BRAIN POTENTIALS AND MEMORY

最近研究记忆的方法强调， 记忆是各种过程相互作用的结果 在编码、排练和提取的过程中。 然而，其中大多数 过程缺乏明显的表现，只能推断 间接地。 最近的证据表明， 事件相关脑电位（ERP），如P300和慢波 波，可以用来监视其中一些隐蔽的过程。 在 特别是，卡里斯，Fabiani和Donchin（1984年）报告的数据 这表明P300反映了记忆中的变化， 有助于记忆的事件表征 记忆者，而不是阐述者。 我们提出的方案是 旨在进一步证实这一观察，测试其普遍性， 并阐明发生在 与P300同时使用。 我们提出实验 测试ERP和回忆之间关系的一般性 在其他语言和非语言领域的范例中， 研究记忆中发生的变化的本质 作为更新过程的结果， 记忆表征的状态与 随后召回执行。 提出的所有实验也 解决与记忆中独特性的作用有关的问题。 该计划的主要长期目标是提供 关于记忆过程的信息， 发生，通过记录ERP期间和之后立即 刺激的呈现。 ERP的联合分析，传统的 业绩计量和受试者的详细汇报 将允许开发和测试Artiulated内存 模型 我们还认为，这种方法可能是 在解决与《公约》有关的一些问题方面非常有用， 记忆障碍，通过允许研究者分析和 分解记忆功能中涉及的过程。

Recent approaches to the study of memory emphasize that memory is the result of the interaction of processes occurring during encoding, rehearsal and retrieval. However, most of these processes lack an overt manifestation and can only be inferred indirectly. Recent evidence indicates that components of the Event-Related Brain Potential (ERP), such as P300 and Slow Wave, can be used to monitor some of these covert processes. In particular, Karis, Fabiani, and Donchin (1984) reported data suggesting that P300 manifests changes in the memory representations of events that facilitate their recall for rote memorizers but not for elaborators. The program we propose is designed to further confirm this observation, test its generality, and elucidate the nature of the change that occurs in the representation concurrently with a P300. We propose experiments testing the generality of the relationship between ERPs and recall in paradigms in oth verbal and non-verbal domains, and investigating the nature of the changes occurring in the memory representation as a consequence of the updating process, and the interactions between the status of the memory representation and subsequent recall performane. All the experiments proposed also address problems related to the role of distinctiveness in memory. The major long term objective of this program is to provide information concerning memory processes while they are occurring, by recording ERPs during and immediately after the presentation of stimuli. The joint analyses of ERPs, conventional performance measures and extended debriefing of the subjects will allow the development and testing of artiulated memory models. We also believe that this approach could be potentially very useful in addressing some of the issues related to the disorders of memory, by allowing the investigator to analyze and decompose the processes involved in the memory function.