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Neurons

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When Does the Brain Operate at Peak Performance?

January 31, 2023

The critical brain hypothesis suggests that neural networks do their best work when connections are not too weak or too strong.

The Cause of Depression Is Probably Not What You Think

January 26, 2023

Depression has often been blamed on low levels of serotonin in the brain. That answer is insufficient, but alternatives are coming into view and changing our understanding of the disease.

The Year in Biology

December 21, 2022

Momentum for new ideas in Alzheimer’s research joined advances in neuroscience, developmental biology and origin-of-life studies to make 2022 a memorable year of biological insights.

What Causes Alzheimer’s? Scientists Are Rethinking the Answer.

December 8, 2022

After decades in the shadow of the reigning model for Alzheimer’s disease, alternative explanations are finally getting the attention they deserve.

New Chip Expands the Possibilities for AI

November 10, 2022

An energy-efficient chip called NeuRRAM fixes an old design flaw to run large-scale AI algorithms on smaller devices, reaching the same accuracy as wasteful digital computers.

Lab-Grown Human Cells Form Working Circuits in Rat Brains

October 12, 2022

Letting human brain organoids grow in animal brains could be an ethical new option for experimental studies of neurological disorders.

A Good Memory or a Bad One? One Brain Molecule Decides.

September 7, 2022

When the brain encodes memories as positive or negative, one molecule determines which way they will go.

Neuronal Scaffolding Plays Unexpected Role in Pain

July 28, 2022

Perineuronal nets, rigid structures that hold certain neurons in place, affect a surprising amount of brain activity, including some associated with chronic pain.

The Brain Has a ‘Low-Power Mode’ That Blunts Our Senses

June 14, 2022

Neuroscientists uncovered an energy-saving mode in vision-system neurons that works at the cost of being able to see fine-grained details.

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