期刊
PSYCHOLOGICAL SCIENCE
卷 24, 期 9, 页码 1791-1800出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/0956797613481233
关键词
memory; cognitive neuroscience
资金
- NCATS NIH HHS [UL1 TR000448] Funding Source: Medline
- NIA NIH HHS [RC1AG036258, RC1 AG036258] Funding Source: Medline
Identifying the processes by which people remember to execute an intention at an appropriate moment (prospective memory) remains a fundamental theoretical challenge. According to one account, top-down attentional control is required to maintain activation of the intention, initiate intention retrieval, or support monitoring. A diverging account suggests that bottom-up, spontaneous retrieval can be triggered by cues that have been associated with the intention and that sustained attentional processes are not required. We used a specialized experimental design and functional MRI methods to selectively marshal and identify each process. Results revealed a clear dissociation. One prospective-memory task recruited sustained activity in attentional-control areas, such as the anterior prefrontal cortex; the other engaged purely transient activity in parietal and ventral brain regions associated with attentional capture, target detection, and episodic retrieval. These patterns provide critical evidence that there are two neural routes to prospective memory, with each route emerging under different circumstances.
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