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Mice who get less attention from their mothers have more copies of a common retrotransposon in the genomes of their hippocampal neurons.

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Failure to produce evidence of neural precursor cells and immature neurons raises questions about the role of the process in learning and memory.

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Upping a gene’s expression in rat brains made them better learners and normalized the activity of hundreds of other genes to resemble the brains of younger animals.

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image: The Cellular Hallmarks of Consciousness

The Cellular Hallmarks of Consciousness

By Anna Azvolinsky | September 21, 2017

Recording from single neurons of epilepsy patients, neuroscientists show that both the strength and timing of neuronal firing are important to consciously perceive a visual object. 

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image: Image of the Day: Hippocampal Jalapeno

Image of the Day: Hippocampal Jalapeno

By The Scientist Staff | August 30, 2017

To tease apart brain regions involved in forming versus remembering memories, scientists engineered mice whose brain cells could be manipulated and tagged.

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image: Image of the Day: Rainbow Matter

Image of the Day: Rainbow Matter

By The Scientist Staff | August 14, 2017

Using diffusion-weighted tractography, scientists can produce a detailed image of the minute neural fibers within a mouse brain.  

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image: Image of the Day: Release Your Inhibitions

Image of the Day: Release Your Inhibitions

By The Scientist Staff | July 31, 2017

A drug commonly used to treat clinical depression sets its effects in motion by hampering the release of an inhibitory neurotransmitter in mice.

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image: Image of the Day: Memory Maker

Image of the Day: Memory Maker

By The Scientist Staff | June 2, 2017

The enzyme acetyl-CoA synthetase 2 turns on memory-building genes within the nuclei of hippocampal neurons. 

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image: Long-Term Memory Storage Begins Immediately

Long-Term Memory Storage Begins Immediately

By Kerry Grens | June 1, 2017

In mice, cells in the prefrontal cortex—where memories are maintained long-term—start to encode a fearful experience right from the start.

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image: Scientists Stretch Neurons to Image Fine Structures

Scientists Stretch Neurons to Image Fine Structures

By Kerry Grens | April 18, 2017

A double-expansion technique embeds brain tissue in the absorbent material of diapers to stretch out cells for easier visualization.

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