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首页> 外文期刊>Neuron >Frontal brain potentials during recognition are modulated by requirements to retrieve perceptual detail.
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Frontal brain potentials during recognition are modulated by requirements to retrieve perceptual detail.

机译：识别过程中的额叶脑电势根据要求进行调节，以检索知觉细节。

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摘要

To assess the role of prefrontal cortex in retrieval and address the controversy about whether prefrontal retrieval operations are engaged only following successful retrieval, we recorded event-related brain potentials during two recognition tests with differing demands on retrieval effort. Both tests included object drawings that were (1) identical to those studied, (2) the same but with altered aspect ratios, and (3) previously unseen. Instructions were to respond "old" only if drawings were not modified (specific test) or regardless of modifications (general test). Frontal potentials were enhanced during the specific relative to the general test for all three types of drawings. We conclude that these potentials reflected differential engagement of strategic retrieval, that this function relied on left prefrontal cortex, and that it was not contingent on successful retrieval.
机译：为了评估前额叶皮层在检索中的作用并解决是否仅在成功检索后才进行前额叶检索操作的争议，我们在两次识别测试中记录了与事件相关的脑电势，这对检索工作有不同的要求。两项测试均包含与（1）与所研究的对象相同，（2）相同但宽高比已更改以及（3）以前未见过的对象图。说明仅在未修改图纸（特定测试）或不考虑修改（常规测试）的情况下，才回答“旧”。相对于普通测试，这三种类型的图纸在特定时间内都增强了正面电位。我们得出的结论是，这些潜力反映了战略性检索的差异性参与，该功能依赖于左前额叶皮层，并且不取决于成功的检索。

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