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image: Could a Dose of Sunshine Make You Smarter?

Could a Dose of Sunshine Make You Smarter?

By Ruth Williams | May 17, 2018

Moderate ultraviolet light exposure boosts the brainpower of mice thanks to increased production of the neurotransmitter glutamate.  

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Changes in gene activity levels after DBS appear to underlie improvements seen in a mouse model of Rett syndrome, a genetic disease that causes intellectual disability.

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image: RNA Moves a Memory From One Snail to Another

RNA Moves a Memory From One Snail to Another

By Ashley Yeager | May 14, 2018

Injecting molecules from a sea slug that received tail shocks into one that didn’t made the recipient animal behave more cautiously. 

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A new technique reveals certain neuronal connections grow larger and denser when memories are made.

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Researchers identified thousands of immature neurons in the brain region, countering a recent result showing little, if any, signs of neurogenesis.

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image: Infographic: Structure of the Perineuronal Net

Infographic: Structure of the Perineuronal Net

By Daniela Carulli | April 1, 2018

See the web of proteins that make up these neuronal wrappings.

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The neuronal coverings that mediate synaptic changes are involved in everything from memory to psychiatric disorders, affecting autism, Alzheimer’s, and addiction.

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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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In people with epilepsy, transcranial alternating current stimulation (tACS) does not affect memory-related brainwaves as widely claimed, researchers report.

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