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neurobiology

Auditory Neuroscience Featured Neuroscience

·October 9, 2024·6 min read

Vagus Nerve Stimulation Can Boost Perceptual Learning

New research demonstrates that stimulating the vagus nerve enhances perceptual learning, allowing animals to better distinguish subtle sensory differences over time. In the study, mice trained to differentiate tones improved more when their vagus nerve was stimulated, surpassing performance plateaus seen in unstimulated mice. This stimulation activated regions in the brain associated with attention, memory, and neuroplasticity, suggesting it might enhance adaptability to new experiences.

Featured Genetics Neuroscience

·October 9, 2024·5 min read

Why We Only Inherit Mitochondria from Moms

A recent study reveals why most animals, including humans, inherit mitochondrial DNA solely from their mothers, showing that retaining paternal mitochondria can harm development and health. In roundworms, when paternal mitochondria persist, it disrupts ATP production, affecting neurological, behavioral, and reproductive health.

This shows people fighting over a puzzle piece.

Featured Neuroscience Psychology

·October 9, 2024·5 min read

Why We’re Confident with Only Half the Story

A new study reveals that people often overestimate the amount of information they have when making decisions, a phenomenon researchers call the “illusion of information adequacy.” Participants who were only given partial information about a situation were just as confident in their decisions as those who had the complete story.

Featured Neuroscience

·October 9, 2024·5 min read

AI Discovers 161,000 New Viruses

A novel study study using AI has uncovered 161,979 new RNA viruses, significantly expanding our understanding of Earth's viral diversity. These discoveries were made by analyzing genetic data using a machine learning model, which identified previously unrecognized viruses hidden in public databases.

Featured Genetics Neuroscience

·October 9, 2024·6 min read

3D Gene Regulation Map Sheds Light on Brain Development

Researchers have developed the first 3D map of gene regulation in the human brain, offering insights into how early brain development influences lifelong mental health. This map, focusing on regions tied to memory and emotional regulation, reveals how chromatin structure controls gene activity, especially during key developmental stages.

Featured Neuroscience Psychology

·October 9, 2024·3 min read

Social Networks Drive Idea and Misinformation Contagion

A recent study examines how the structure of social networks influences the spread of both diseases and ideas, using data collected during the COVID-19 pandemic. Researchers developed a model to analyze not only social connections but also the mechanisms driving contagion and information diffusion.

Featured Neuroscience

·October 9, 2024·6 min read

How Brains Learn Over Longer Timescales

Researchers have discovered a novel brain mechanism, behavioral timescale synaptic plasticity (BTSP), that enables neurons to encode information over seconds rather than milliseconds, aligning more closely with learning timescales. Previously, encoding models like Hebbian plasticity focused on neuron activity within mere milliseconds, but BTSP extends this window, allowing neurons to integrate information over seconds.

This shows a child looking at brain scans.

Autism Featured Neuroscience

·October 9, 2024·5 min read

Neuron Density Differences in Autistic Children’s Brains

New research reveals that children with autism have varying neuron densities in certain brain regions compared to their peers. Using advanced imaging from the ABCD study, scientists observed lower neuron density in regions associated with memory and problem-solving, while regions like the amygdala showed higher neuron density.

Featured Genetics Neuroscience

·October 9, 2024·3 min read

Nobel Prize Honors Breakthroughs in Protein Design and Structure Prediction

The 2024 Nobel Prize in Chemistry celebrates two groundbreaking achievements in protein science: designing novel proteins and predicting protein structures using AI. David Baker has pioneered techniques to construct entirely new proteins that could serve as pharmaceuticals, vaccines, and nanomaterials. Meanwhile, Demis Hassabis and John Jumper’s AI model, AlphaFold2, solved the decades-old challenge of predicting protein structures, allowing researchers to visualize nearly all known proteins. These advancements hold transformative potential for fields like medicine, biotechnology, and environmental science.

This shows a happy person surrounded by psychedelic swirls.

Featured Neuroscience Psychology

·October 8, 2024·3 min read

Optimism Boosted by Psilocybin, Hinting at Depression Relief

Researchers have discovered that psilocybin, a psychedelic compound in magic mushrooms, increases optimism and motivation in rats, suggesting potential therapeutic benefits for treating depression. Using computational modeling, scientists observed that rats given psilocybin were more likely to engage in reward-based tasks, indicating enhanced optimism.

Featured Neurology Neuroscience

·October 8, 2024·4 min read

Immune Response Linked to Lewy Body Formation

New research reveals that immune responses play a crucial role in the formation of Lewy bodies, protein aggregates that mark Parkinson's disease and other neurological conditions. Using human stem cells, scientists recreated Lewy bodies in dopaminergic neurons by combining alpha-synuclein protein buildup with immune stimulation.

Featured Neuroscience

·October 8, 2024·5 min read

Tracking Daily Habits’ Lasting Effects on the Brain

A unique study tracked one person’s brain activity and behavior over five months, revealing how daily habits like sleep, exercise, and mood can impact the brain for days. Researchers found that brain connectivity adjusts over time, influenced by heart rate, respiration, and physical activity, with even minor mood shifts leaving lasting effects. For instance, heart rate variability during rest strongly correlated with brain connectivity, highlighting how stress management and relaxation impact brain wiring.