Mathematical model predicts self-organized learning in real neurons

The free energy principle predicted how real neural connections changed as neurons “learned” in a dish.
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Artificial gravity protects the immune system of mice in space

Mice who experienced artificial gravity on the ISS suffered less damage to their immune system (thymus) than weightless mice did.
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Flies use fecal deposits as pheromones

Bioluminescence imaging of fly brains reveals neurons sensitive to fly poo laced with pheromones (you can see the fecal “landmark” in the dotted circle). Need we say more?

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The free-energy principle explains neural network behavior

Scientists show that the free-energy principle can explain how neural networks work.
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Clean and green: a moss that removes lead (Pb) from water

Scientists show that the moss Funaria hygrometrica can remove harmful lead from water when in the protonema stage of development.

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AdR blockers protect the brain from stroke damage

Treatment with adrenergic receptor antagonists (AdR blockers) was able to reduce stroke-related brain damage in mice and improve motor recovery.

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Strong emotions plus non-REM sleep equals longer-lasting perceptual memories

Perceptual memories linked to positive emotions, such as joy or happiness, are strengthened during sleep, specifically during periods of deep non-REM sleep.
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Memory retrieval needs a neuronal connecting flight

Scientists use optogenetics to discover a part of the brain necessary for retrieving memories of personal experiences.

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A researcher’s journey part 2: emotional memory and being human

Joshua Johansen from RIKEN CBS explains emotional memory, what his lab is doing, and what makes a good researcher.
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Efficient and durable ultra-thin solar cells

Ultra-thin, flexible, organic solar cells that degrade less than 5 percent after 3,000 hours and an energy conversion ratio of 13%.
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Hippocampal memory isn’t all about place cells

Scientists have found evidence that hippocampal memories of experience are not stored in place cells.

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Promising mouse model for Ngly1 deficiency

A recent study of Ngly1 deficient mice used a secondary knockout to create double knockouts with symptoms similar to human NGLY1 deficiency.

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How does gravity affect antimatter?

Scientists find that antimatter reacts to gravity the same way that regular matter does.
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Artificial gravity protects the immune system of mice in space

Mice who experienced artificial gravity on the ISS suffered less damage to their immune system (thymus) than weightless mice did.
Read on

Talking science Illustration with Misaki Ouchida

Whether it’s bird anatomy or science cartoons, Masaki Ouchida can do it all. She spoke with us about her career in science illustration, from the US to Japan.
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Diazoxide pills for Alzheimer’s disease?

Drug therapy with with diazoxide relieved symptoms of Alzheimer’s disease in the brains of mice and improved memory.
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Aug

17

Eve Marder: freeing knowledge, crashing neurons

Eve Marder: freeing knowledge, crashing neurons

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None of us would get on a plane that had its parts changed in mid-air, says Eve Marder, who has spent her career probing a very specific cluster of crustacean nerve cells. Yet we are all walking around undergoing a constant turnover of cellular parts, and so are the lobsters and crabs Marder studies.

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