Latest

hippocampus

·December 3, 2025·7 min read

Hidden Brain Layers Revealed in Key Memory Center

Scientists have identified a previously unseen layered organization inside one of the brain’s most important memory hubs. The CA1 region of the hippocampus was found to contain four distinct bands of neuron types, each defined by unique genetic signatures that shift subtly across the structure.

Featured Neuroscience

·November 26, 2025·8 min read

Brain Uses Molecular Timers to Decide What We Remember

New research shows that long-term memory is not stored by a single molecular switch, but by a sequence of timed genetic programs unfolding across different brain regions. Using a virtual-reality learning model in mice, scientists found that experiences are promoted or demoted through multiple biological “durability gates.”

Featured Neuroscience Psychology

·November 24, 2025·4 min read

Stress-Like Behaviors Traced to a Single ATP Circuit in the Brain

New research reveals that reduced ATP signaling in the hippocampus plays a causal role in both depression- and anxiety-like behaviors. In stressed male mice, ATP levels and the ATP-releasing protein connexin 43 were markedly lower.

Featured Neurology Neuroscience

·October 9, 2025·6 min read

Lifelong Social Bonds Keep the Aging Brain Sharp and Flexible

Rats that lived in social groups throughout their lives retained youthful memory and mental flexibility well into old age, according to new research. Even with equal physical stimulation, only socially connected rats performed as well as younger ones on complex memory tests, while isolated rats showed significant decline.

Featured Neuroscience Psychology

·October 5, 2025·8 min read

Do You Get Déjà Vu? Memory Glitches Make Time Feel Repeated

Déjà vu—the eerie feeling that a new moment has happened before—has puzzled scientists and philosophers for centuries. Neuroscientists now believe it’s a normal brain glitch tied to how memory and perception interact.

Featured Neuroscience

·September 3, 2025·5 min read

How the Brain Extinguishes Fear Memories

Scientists have, for the first time, identified the brain signals linked to extinguishing fear memories in humans. Using implanted electrodes and advanced Representational Similarity Analysis, they showed that theta activity in the amygdala increases when previously unpleasant cues are re-learned as safe.

Featured Genetics Neuroscience

·August 21, 2025·5 min read

Gene Blueprint of Neural Stem Cells in the Brain Identified

A new study has mapped the genetic blueprint of neural stem and progenitor cells (NPCs), the rare cells responsible for generating new neurons in the adult brain. Using a digital sorting algorithm and cross-species analysis, researchers identified 129 NPC-specific genes, 25 of which are already linked to neurological disorders and 15 that may explain previously unknown conditions.

Featured Genetics Neurology Neuroscience

·August 20, 2025·3 min read

Blocking Protein Reverses Age-Related Memory Loss

Aging disrupts memory by increasing levels of the protein FTL1 in the hippocampus, new research shows. In mice, excess FTL1 caused neurons to grow abnormally and led to memory decline, while reducing FTL1 reversed these impairments.

This shows hippocampal neurons, and is an AI representation.

Featured Neuroscience

·August 18, 2025·5 min read

New Neuron Type Controls How Accurately We Recall Memories

Scientists have identified a previously unknown group of inhibitory neurons defined by the adhesion molecule Kirrel3. These neurons receive input from dentate granule cells and project strongly onto CA3 hippocampal neurons, placing them at a critical juncture for memory retrieval.

This shows the outline of a person with the brain and pancreas highlighted.

Featured Genetics Neuroscience Psychology

·August 16, 2025·5 min read

Bipolar Mood Shifts Linked to Insulin Signaling in the Pancreas

A new study uncovers a pancreas–hippocampus feedback loop that may help explain mood swings in bipolar disorder. Using patient-derived pancreatic islets, researchers found reduced insulin secretion linked to elevated RORβ, a bipolar risk gene.

This shows a brain with the amygdala and hippocampus glowing red.

Featured Neuroscience

·July 26, 2025·6 min read

How the Brain Reactivates Emotional Experiences

A new study using direct recordings from human brains reveals how the amygdala and hippocampus coordinate to form and retrieve emotional memories. During aversive memory encoding, high-frequency gamma activity in the amygdala shapes hippocampal responses, which are later reactivated in the hippocampus—but not the amygdala—during memory recall.

Featured Neuroscience Visual Neuroscience

·July 25, 2025·6 min read

Brain Decodes Visual Memories by Timing, Not Just Firing Neurons

A new study has uncovered how the brain efficiently encodes and recalls visual memories—by organizing them into categories and using the precise timing of neuronal activity.