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Dissociated process for implicit and explicit recognition of novel events

机译：解开的隐含和明确识别新事件的过程

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We studied recognition memory process for contextually novel events by measuring event-related brain potential (ERP). Brain electrical activity was recorded while 13 healthy subjects watched frequent triangles, infrequent slanted triangles, and infrequent novel pictures. The subjects were instructed to press a button to the occurrence of infrequent slanted triangles while ignoring other stimuli. Following the oddball detection task, the subjects performed a recognition test for the novel pictures that presented (old) or not (new) during the previous session. ERPs for the recognition test were averaged separately according to the correct and false recognition of novel pictures. We examined the differences between the ERPs for correct recognition of new pictures and those for false recognition of old pictures. Moreover, the differences between the ERPs for correct recognition of old pictures and the ERPs for false recognition of old pictures were examined. The correct recognition rate of pictures was 64%. There were significant differences in the ERPs to correctly recognized new pictures and falsely recognized old pictures in the latency range of 300-600 ms after stimulus onset. The difference wave was distributed in the bilateral inferior frontal lobes. The ERP differences between correctly and falsely recognized old pictures were maximal in the bilateral inferior temporal lobes. These results suggest that the inferior frontal lobe may contribute to the unconscious or implicit recognition process of the contextually novel events.
机译：通过测量事件相关的脑潜力（ERP），我们研究了上下文新事件的识别记忆过程。脑电活动被记录，而13个健康的受试者观看频繁的三角形，不频繁的倾斜三角形，并且不常见的小说图片。被指示受试者按下按钮在忽略其他刺激的同时，越野倾斜三角形的发生。在奇怪的检测任务之后，受试者对在前面的会话期间呈现（旧的）或不是（新）的新颖图片进行了识别测试。识别测试的ERP根据小说图像的正确和虚假识别分别平均。我们检查了ERPS之间的差异，以正确识别新图片和旧图片虚假识别的人。此外，检查了ERPS以正确识别旧图片和ERP的差异，用于旧照片的虚假识别。正确的识别率为64％。 ERPS在刺激发作后，ERPS在正确认可的新图片中有显着差异，并在延迟范围内避免了延迟范围的旧照片。差异波被分布在双侧较差的前瓣膜中。在双侧较差的颞叶中正确和错误的旧图像之间的ERP差异是最大的。这些结果表明，下额叶叶可能有助于上下文新颖事件的无意识或隐含识别过程。

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