J Cogn Neurosci. 1992 Fall;4(4):375-92. doi: 10.1162/jocn.1992.4.4.375.
Event-related brain potentials were recorded from subjects as they attempted to identify words displayed tachistoscopically. Words that had also been presented a few minutes earlier in a different context were identified more often than were words that had not been presented before. This priming effect was observed for words initially seen in an imagery task requiring size estimations as well as for words initially seen in an orthographic task requiring letter counting. Unlike priming, recall and recognition were much better for words repeated from the imagery task than from the orthographic task. Brain potentials elicited during word identification also differed as a function of task. Based on these differences, a potential from 500 to 800 msec was interpreted as an index of recollection processes. Earlier potentials may have indexed processing related to priming. These effects thus provide measures of the hypothetical processes underlying memory performance and demonstrate that recollection and priming are associated with distinct neural events.
当被试者试图识别快速呈现的单词时，记录了与事件相关的大脑电位。与之前未呈现的单词相比，几分钟前在不同语境中呈现过的单词被识别的频率更高。这种启动效应不仅在最初要求大小估计的意象任务中观察到，而且在最初要求字母计数的正字法任务中也观察到。与回忆和识别不同的是，从意象任务中重复出现的单词比从正字法任务中重复出现的单词要好得多。在单词识别过程中引发的脑电位也因任务而异。基于这些差异，500 到 800 毫秒的电位被解释为回忆过程的指标。更早的电位可能与启动相关的处理有关。这些效应因此提供了记忆表现背后假设过程的度量，并证明了回忆和启动与不同的神经事件相关联。
