Memory
Researchers map four hidden neuron layers in hippocampal CA1 region
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Scientists at the Keck School of Medicine of the University of Southern California have identified a four-layer organization of neuron types in the mouse hippocampus’s CA1 region, a key hub for memory, navigation, and emotion. The study, published in Nature Communications in December 2025, uses advanced RNA imaging to chart genetic activity in tens of thousands of neurons and reveals shifting bands of specialized cells that may help explain behavioral differences and disease vulnerabilities.
A new brain imaging study has found that recalling facts and personal experiences activates nearly identical neural networks, challenging long-held views on memory systems. Researchers from the University of Nottingham and University of Cambridge used fMRI scans on 40 participants to compare these memory types. The results, published in Nature Human Behaviour, suggest a rethink in how memory is studied and could inform treatments for Alzheimer's and dementia.
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In her debut novel 'Wo der Name wohnt', Ricarda Messner delves into the secrets of her Latvian roots and the loss of the family name Levitanus. The book draws from her own life, including her family's immigration to West Germany in 1971 and the uncovering of dark family secrets. Messner reflects on names, memory, and the voices of the dead.