ArticleProgress in neurobiology2025
Cell-type-specific cholinergic control of granular retrosplenial cortex with implications for angular velocity coding across brain states.
Article in Progress in neurobiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Reciprocal molecular and cellular cholinergic working memory impairments in Alzheimer's disease model mice.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- A Single Dose of a Psychedelic Drug Repairs Prefrontal Cortex Synaptic Physiology in a Mouse Model of Prenatal Alcohol Exposure.Brain and behavior · 2026Article
- Psychedelic neuroplasticity of cortical neurons lacking 5-HT2A receptors.Molecular psychiatry · 2026Article
- Unique Transcriptomic Cell Types of the Granular Retrosplenial Cortex Are Preserved across Mice and Rats despite Dramatic Changes in Key Marker Genes.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
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Abstract
Cholinergic receptor activation enables the persistent firing of cortical pyramidal neurons, providing a key cellular basis for theories of spatial navigation involving working memory, path integration, and head direction encoding. The granular retrosplenial cortex (RSG) is important for spatially-guided behaviors, but how acetylcholine impacts RSG neurons is unknown. Here, we show that a transcriptomically, morphologically, and biophysically distinct RSG cell-type - the low-rheobase (LR) neuron - has a very distinct expression profile of cholinergic muscarinic receptors compared to all other neighboring excitatory neuronal subtypes. LR neurons do not fire persistently in response to cholinergic agonists, in stark contrast to all other principal neuronal subtypes examined within the RSG and across midline cortex. This lack of persistence allows LR neuron models to rapidly compute angular head velocity (AHV), independent of cholinergic changes seen during navigation. Thus, LR neurons can consistently compute AHV across brain states, highlighting the specialized RSG neural codes supporting navigation.
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