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A persistent prefrontal reference frame across time and task rules
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DOI：10.1038/s41467-024-46350-4.png)
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Behavior can be remarkably consistent, even over extended time periods, yet whether this is reflected in stable or 'drifting' neuronal responses to task features remains controversial. Here, we find a persistently active ensemble of neurons in the medial prefrontal cortex (mPFC) of mice that reliably maintains trajectory-specific tuning over several weeks while performing an olfaction-guided spatial memory task. This task-specific reference frame is stabilized during learning, upon which repeatedly active neurons show little representational drift and maintain their trajectory-specific tuning across long pauses in task exposure and across repeated changes in cue-target location pairings. These data thus suggest a 'core ensemble' of prefrontal neurons forming a reference frame of task-relevant space for the performance of consistent behavior over extended periods of time. The prefrontal cortex (PFC) is involved in rule-coding and long-term memory. Here, the authors identified a stably active neuronal ensemble in the mouse medial PFC in an olfaction-guided spatial memory task, which showed stable tuning to task features across time, rule-reversal, and context changes.
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IF:
15.7
论文数:
9.4W
被引数:
91.2W
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Fluid network dynamics in the prefrontal cortex during multiple strategy switching.png)
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