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A close-up of a mouse interacting with a food pellet, representing behavior and learning in mice used for scientific studies.
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Brain Activity in Mice Reveals Faster Learning Than Expected

Johns Hopkins University researchers discovered that mice can learn new skills in fewer trials than previously assumed. Their study reveals the role of the sensory cortex in learning and challenges the idea that mistakes indicate confusion.
Two people in bed, with their feet poking out from under the covers.
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Brain Chemicals Control Sexual Behavior in Mice

Researchers have studied how dopamine and acetylcholine regulate the progression of sexual behavior in male mice. Their findings may provide insights for developing treatments for sexual dysfunctions like premature ejaculation in humans.
A women in a wheelchair with Alzheimer's disease.
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FDA-Approved Alzheimer's Drug Found To Be Less Effective in Females

Researchers have found that lecanemab was probably less effective in females than males in the Phase 3 trial of the drug. However, there was insufficient evidence to say the drug was totally ineffective in females.
Fluorescent microscopy images of highly variable wtf genes’ poison proteins (Wtfpoison) exhibit similar aggregation and distribution within yeast cells.
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Selfish Genes Hijack Inheritance and Impact Fertility

Researchers at the Stowers Institute discovered how selfish genes manipulate inheritance by forming toxic protein clusters. These genes, found in yeast, evolve rapidly to outpace genetic suppression but can also self-destruct, causing infertility.
Purple neurons against a black background with glowing circles on the synapses representing electrical signals.
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First-of-Its-Kind Stroke Recovery Drug Mimics Physical Rehabilitation

A new study by UCLA Health has discovered what researchers say is the first drug to fully reproduce the effects of physical stroke rehabilitation in model mice.
A plastic model of a human brain, bisected to reveal internal structures, and a model of a brain cell.
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How Do Axons Make Connections as the Brain Grows?

The folding brain creates a stress landscape, causing axons – the long, slender projections of neurons that transmit electrical impulses – to grow differently in different areas of the brain.
A distressed military veteran sitting on a couch, holding dog tags and covering his face, symbolizing PTSD and emotional struggle.
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Witnessing Trauma Triggers Unique Brain Changes in PTSD

Researchers at Virginia Tech found that PTSD from witnessing trauma triggers distinct brain changes compared to firsthand trauma. The study highlights differences in protein degradation and sex-specific responses.
Concept illustration of a brain with an embedded microchip, symbolizing implanted medical devices for neural enhancement or treatment.
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Brain Implants May Allow Bacteria to Breach the Blood-Brain Barrier

Researchers found gut bacteria in brain implants, potentially causing inflammation and reducing device function. The study suggests that medical implants may breach the blood-brain barrier, allowing microbes to enter.
A diverse group of friends laughing and communicating in a park, highlighting human connection through language and expression.
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Genetic Evidence Suggests Humans Had Language 135,000 Years Ago

A genomic analysis suggests humans had the cognitive capacity for language at least 135,000 years ago, based on early population splits. Researchers examined genetic studies and migration patterns.
Rolling green hills with scattered trees and lush grass under a partly cloudy sky, capturing the beauty of nature.
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Nature Reduces Pain, According to Brain Scans

A team of neuroscientists from the University of Vienna has published brain scan evidence demonstrating that exposure to nature can reduce pain. The research is available in Nature Communications.
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