Hippocampus
Recent articles
Spatial learning circuitry fluctuates in step with estrous cycle in mice
Cyclic shifts in estradiol levels coincide with changes in dendritic spine density and the activity of place cells in the CA1 region of the hippocampus, a new study shows.

Spatial learning circuitry fluctuates in step with estrous cycle in mice
Cyclic shifts in estradiol levels coincide with changes in dendritic spine density and the activity of place cells in the CA1 region of the hippocampus, a new study shows.
Expanded view of hippocampal function comes into focus
After decades of debate, the region’s role is being rewritten. Rather than using sensory input to simply log key points in time and space, the hippocampus may serve to contextualize our experiences and memories—and ultimately make predictions about the future.
Expanded view of hippocampal function comes into focus
After decades of debate, the region’s role is being rewritten. Rather than using sensory input to simply log key points in time and space, the hippocampus may serve to contextualize our experiences and memories—and ultimately make predictions about the future.
Gazing at a location from afar activates place cells in chickadees
The results help explain how the hippocampus can recall information about a place without an animal physically revisiting it.

Gazing at a location from afar activates place cells in chickadees
The results help explain how the hippocampus can recall information about a place without an animal physically revisiting it.
Learning in living mice defies classic synaptic plasticity rule
Donald Hebb’s theory—memorably summarized as “cells that fire together, wire together”—does not explain the shifting hippocampal connections in mice learning to navigate a virtual environment, according to a new study.

Learning in living mice defies classic synaptic plasticity rule
Donald Hebb’s theory—memorably summarized as “cells that fire together, wire together”—does not explain the shifting hippocampal connections in mice learning to navigate a virtual environment, according to a new study.
Sleep doesn’t just consolidate memories; it actively shapes them
The rapid eye movement (REM) phase preserves newly acquired memories, but deeper non-REM sleep helps to adapt and update them, according to “heroic” day-long electrode recordings in rats.

Sleep doesn’t just consolidate memories; it actively shapes them
The rapid eye movement (REM) phase preserves newly acquired memories, but deeper non-REM sleep helps to adapt and update them, according to “heroic” day-long electrode recordings in rats.
What infant fMRI is revealing about the developing mind
Cognitive neuroscientists have finally clocked how to perform task-based functional MRI experiments in awake babies—long known for their inability to lie still or take direction. Next, they aim to watch cognition take shape and settle a debate about our earliest memories—with one group publishing a big clue today.

What infant fMRI is revealing about the developing mind
Cognitive neuroscientists have finally clocked how to perform task-based functional MRI experiments in awake babies—long known for their inability to lie still or take direction. Next, they aim to watch cognition take shape and settle a debate about our earliest memories—with one group publishing a big clue today.
Molecular changes after MECP2 loss may drive Rett syndrome traits
Knocking out the gene in adult mice triggered up- and down-regulated expression of myriad genes weeks before there were changes in neuronal function.

Molecular changes after MECP2 loss may drive Rett syndrome traits
Knocking out the gene in adult mice triggered up- and down-regulated expression of myriad genes weeks before there were changes in neuronal function.
Single-neuron recordings are helping to unravel complexities of human cognition
As this work begins to bear fruit, researchers “are becoming less afraid to ask very difficult questions that you can uniquely ask in people.”

Single-neuron recordings are helping to unravel complexities of human cognition
As this work begins to bear fruit, researchers “are becoming less afraid to ask very difficult questions that you can uniquely ask in people.”
Alison Preston explains how our brains form mental frameworks for interpreting the world
Preston discusses her research examining differences in how children, teenagers and adults integrate new information into their memories.
Alison Preston explains how our brains form mental frameworks for interpreting the world
Preston discusses her research examining differences in how children, teenagers and adults integrate new information into their memories.
Targeting NMDA receptor subunit reverses fragile X traits in mice
The subunit acts as a “volume control” on signaling that shapes the density of dendritic spines, the new work suggests.

Targeting NMDA receptor subunit reverses fragile X traits in mice
The subunit acts as a “volume control” on signaling that shapes the density of dendritic spines, the new work suggests.
Explore more from The Transmitter
Astrocytes sense neuromodulators to orchestrate neuronal activity and shape behavior
Astrocytes serve as crucial mediators of neuromodulatory processes previously attributed to direct communication between neurons, four new studies show.

Astrocytes sense neuromodulators to orchestrate neuronal activity and shape behavior
Astrocytes serve as crucial mediators of neuromodulatory processes previously attributed to direct communication between neurons, four new studies show.
Authors correct image errors in Neuron paper that challenged microglia-to-neuron conversion
The issue with the supplementary figures likely does not change the conclusions of the paper, according to an outside expert.

Authors correct image errors in Neuron paper that challenged microglia-to-neuron conversion
The issue with the supplementary figures likely does not change the conclusions of the paper, according to an outside expert.
Building a climate neuroscience subfield: Q&A with Angie Michaiel
Michaiel, a program officer at the Kavli Foundation, shares what it took to cultivate research on the relationship between climate change and the nervous system.

Building a climate neuroscience subfield: Q&A with Angie Michaiel
Michaiel, a program officer at the Kavli Foundation, shares what it took to cultivate research on the relationship between climate change and the nervous system.