期刊
JOURNAL OF NEUROSCIENCE
卷 33, 期 26, 页码 10910-10914出版社
SOC NEUROSCIENCE
DOI: 10.1523/JNEUROSCI.0144-13.2013
关键词
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资金
- National Institute of Mental Health [R01MH069558]
- University of Wisconsin-Milwaukee Research Growth Initiative
The medial prefrontal cortex (mPFC) plays an important role in memory. By maintaining a working memory buffer, neurons in prelimbic (PL) mPFC may selectively contribute to learning associations between stimuli that are separated in time, as in trace fear conditioning (TFC). Until now, evidence for this bridging role was largely descriptive. Here we used optogenetics to silence neurons in the PL mPFC of rats during learning in TFC. Memory formation was prevented when mPFC was silenced specifically during the interval separating the cue and shock. Our results provide support for a working memory function for these cells and indicate that associating two noncontiguous stimuli requires bridging activity in PL mPFC.
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