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neurobiology

This shows a pregnant woman drinking wine.

·October 10, 2024·6 min read

Early Alcohol Exposure Leaves Molecular Signature in Fetal Placenta

A recent study shows that alcohol exposure in the earliest stages of pregnancy can lead to detectable molecular changes in the late-gestation placenta, even influencing gene expression through DNA methylation. These changes, particularly in growth and neurotransmitter pathways, could have lasting effects on fetal development, potentially impacting future health. Interestingly, the impact varies by sex, affecting growth-related genes in males and serotonin-related genes in females.

This shows a sad woman and a slice of cake.

Featured Neurology Neuroscience Psychology

·October 10, 2024·6 min read

Sugar Lovers Face Greater Depression and Health Risks

A new study has found that people with a preference for sweet foods face higher risks of depression, diabetes, and vascular issues like stroke. Using data from the UK Biobank, researchers grouped participants into three categories: health-conscious, omnivores, and sweet tooth. They found that the sweet tooth group had poorer blood markers for inflammation and glucose levels, indicating higher risks for metabolic and mental health conditions.

Featured Neuroscience

·October 10, 2024·6 min read

Study Links Calorie Restriction to Longevity

A new study found that calorie restriction, rather than intermittent fasting, had the greatest impact on extending lifespan in mice. Surprisingly, the mice that lived the longest maintained stable body weight and energy levels despite eating less, while those that lost significant weight had shorter lifespans. The findings indicate that genetic factors and resilience to stress play crucial roles in how dietary changes impact health and longevity.

Featured Neuroscience

·October 9, 2024·8 min read

Electronic Tongue Uses AI to Detect Differences in Liquids

Researchers have developed an AI-powered "electronic tongue" capable of distinguishing subtle differences in liquids, such as milk freshness, soda types, and coffee blends. By analyzing sensor data through a neural network, the device achieved over 95% accuracy in identifying liquid quality, authenticity, and potential safety issues. Interestingly, when the AI was allowed to select its own analysis parameters, it outperformed human-defined settings, showing how it holistically assessed subtle data.

Featured Neuroscience

·October 9, 2024·6 min read

How Brain Cells Identify Smells and Related Images

A recent study reveals that specific brain cells respond not only to smells but also to images and written words related to those scents, providing deeper insight into human odor perception. Researchers found that neurons in the olfactory cortex and other brain regions, like the hippocampus and amygdala, distinguish between different smells and associate them with visual cues. This research, using data from epilepsy patients, bridges a gap between animal and human studies on olfactory processing.

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.