ArticleNeurobiology of learning and memory2025
Medial prefrontal cortex to nucleus reuniens circuit is critical for performance in an operant delayed nonmatch to position task.
Article in Neurobiology of learning and memory, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Paired associates learning performance in rats requires the nucleus reuniens.Behavioral neuroscience · 2026Article
- Aberrant Medial Prefrontal Cortex Activity and Flexible Behavior in the TgF344-AD Rat Model of Alzheimer's Disease.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026Article
- Post-methamphetamine working memory decline predicts relapse vulnerability in rats and is rescued by mGlu3 receptor activation.Psychopharmacology · 2026Article
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Authors and funding
6 authors.
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Abstract
Working memory refers to the temporary retention of a small amount of information used in the execution of a cognitive task. The prefrontal cortex and its connections with thalamic subregions are thought to mediate specific aspects of working memory, including engaging with the hippocampus to mediate memory retrieval. We used an operant delayed-non match to position task, which does not require the hippocampus, to determine roles of the rodent medial prefrontal cortex (mPFC), the nucleus reuniens thalamic region (RE), and their connection. We found that transient inactivation of the mPFC and RE using the GABA-A agonist muscimol led to a delay-independent reduction in behavioral performance in the delayed non-match to position paradigm. We used a chemogenetic approach to determine the directionality of the necessary circuitry for behavioral performance reliant on working memory. Specifically, when we targeted mPFC neurons that project to the RE (mPFC-RE) we found a delay-independent reduction in the delayed non-match to position task, but not when we targeted RE neurons that project to the mPFC (RE-mPFC). Our results suggest a broader role for the mPFC-RE circuit in mediating working memory beyond the connection with the hippocampus.
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