Executive control during episodic retrieval: Multiple prefrontal processes subserve source memory
Executive control during episodic retrieval: Multiple prefrontal processes subserve source memory
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DOI：
10.1016/s0896-6273(02)00858-9
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发表时间：
2002-08-29
期刊：
影响因子：
16.2
通讯作者：
Wagner, AD
中科院分区：
文献类型：
--
作者：
Dobbins, IG;Foley, H;Wagner, AD
在再认过程中，一个人可能会感觉到熟悉的项目（项目记忆），并额外地选择早期遇到的特定上下文细节（源记忆）。认知理论认为，与项目记忆不同，源记忆需要受控的线索规范和监控过程。功能成像表明，这些过程可能取决于左前额叶皮层（PFC）。然而，这些过程的性质和可能的解剖分离仍然未知。使用功能性磁共振成像，我们分离出不同的反应模式，在左前额叶皮层源记忆符合语义分析/线索规范（前腹外侧），回忆监测（后背外侧和额极），和语音维护/排练（后腹外侧）。重要的是，线索规范和回忆性的监测反应，没有看到在项目的记忆和检索成功的影响，表明仅仅是试图回忆情节细节从事多个控制过程与不同的左PFC基板。
During recognition, one may sense items as familiar (item memory) and additionally recollect specific contextual details of the earlier encounters (source memory). Cognitive theory suggests that, unlike item memory, source memory requires controlled cue specification and monitoring processes. Functional imaging suggests that such processes may depend on left prefrontal cortex (PFC). However, the nature and possible anatomical segregation of these processes remains unknown. Using functional magnetic resonance imaging, we isolated distinct response patterns in left PFC during source memory consistent with semantic analysis/cue specification (anterior ventrolateral), recollective monitoring (posterior dorsolateral and frontopolar), and phonological maintenance/rehearsal (posterior ventrolateral). Importantly, cue specification and recollective monitoring responses were not seen during item memory and were unaffected by retrieval success, demonstrating that the mere attempt to recollect episodic detail engages multiple control processes with different left PFC substrates.