GABAergic inhibitory circuits play an essential role in coordinating various hippocampal functions. Several decades of work dedicated to a thorough characterization of hippocampal inhibitory populations have highlighted how specific types of interneuron can contribute to network activity. Recent studies have used genetically targeted recordings and peturbations of activity during memory-related behaviours to determine how interneurons that inhibit distinct subcellular domains of principal cells or specialize in principal cell disinhibition may sculpt hippocampal memory. These studies highlight unique contributions of distinct interneuron types to the temporal binding of hippocampal ensembles, synaptic plasticity and the acquisition of spatial and contextual information. Here, we review the current state of knowledge around hippocampal inhibition and memory by discussing the multifaceted roles of populations of inhibitory cells at different stages of hippocampal mnemonic processing.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1038/s41583-022-00599-0 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A novel anxiety-associated SNP identified in () is associated with decreased protein binding to nicotinic acetylcholine receptors.
Front Behav Neurosci
December 2024
Department of Biological Sciences, Lehigh University, Bethlehem, PA, United States.
Introduction: Anxiety disorders are among the most common mental illnesses in the US. An estimated 31.1% of U.
View Article and Find Full Text PDFOptimizing transcutaneous spinal stimulation: excitability of evoked spinal reflexes is dependent on electrode montage.
J Neuroeng Rehabil
January 2025
Hulse Spinal Cord Injury Research Lab, Shepherd Center, 2020 Peachtree Road NW, Atlanta, GA, USA.
Background: There is growing interest in use of transcutaneous spinal stimulation (TSS) for people with neurologic conditions both to augment volitional control (by facilitating motoneuron excitability), and to decrease spasticity (by activating inhibitory networks). Various electrode montages are used during TSS, with little understanding of how electrode position influences spinal circuit activation. We sought to identify the thoracolumbar electrode montage associated with the most robust activation of spinal circuits by comparing posterior root-muscle reflexes (PRM reflexes) elicited by 6 montages.
View Article and Find Full Text PDFExcitatory-inhibitory homeostasis and bifurcation control in the Wilson-Cowan model of cortical dynamics.
PLoS Comput Biol
January 2025
Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, The Netherlands.
Although the primary function of excitatory-inhibitory (E-I) homeostasis is the maintenance of mean firing rates, the conjugation of multiple homeostatic mechanisms is thought to be pivotal to ensuring edge-of-bifurcation dynamics in cortical circuits. However, computational studies on E-I homeostasis have focused solely on the plasticity of inhibition, neglecting the impact of different modes of E-I homeostasis on cortical dynamics. Therefore, we investigate how the diverse mechanisms of E-I homeostasis employed by cortical networks shape oscillations and edge-of-bifurcation dynamics.
View Article and Find Full Text PDFModulating intestinal neuroimmune VIPergic signaling attenuates the reduction in ILC3-derived IL-22 and hepatic steatosis in MASLD.
Hepatol Commun
November 2024
Department of Cell Biology, New York University School of Medicine, New York, New York, USA.
Background: Metabolic dysfunction-associated steatotic liver disease (MASLD, formerly known as NAFLD) is a major driver of cirrhosis and liver-related mortality. However, therapeutic options for MASLD, including prevention of liver steatosis, are limited. We previously described that vasoactive intestinal peptide-producing neurons (VIP-neurons) regulate the efficiency of intestinal dietary fat absorption and IL-22 production by type 3 innate lymphoid cells (ILC3) in the intestine.
View Article and Find Full Text PDFDevelopment of differential sublaminar feedforward inhibitory circuits in CA1 hippocampus requires .
J Neurosci
January 2025
Department of Neuroscience, The Ohio State University College of Medicine, Columbus, OH 43210
Pyramidal cells (PCs) in CA1 hippocampus can be classified by their radial position as deep or superficial and organize into subtype-specific circuits necessary for differential information processing. Specifically, superficial PCs receive fewer inhibitory synapses from parvalbumin (PV)-expressing interneurons than deep PCs, resulting in weaker feedforward inhibition of input from CA3 Schaffer collaterals. Using mice, we investigated mechanisms underlying CA1 PC differentiation and the development of this inhibitory circuit motif.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!