IQgenio Blog
Science-backed news on intelligence, neuroscience, and brain training
Weak Brain Connections Support Cognition More Than Previously Thought
New research shows that weak connections in the brain's white matter, often ignored as noise, actually play a critical role in supporting general cognitive ability and memory.
AI Generates Brain Activity for Unseen Cognitive Tasks, Enabling Counterfactual Neuroscience
Researchers develop a flow matching model that generates realistic fMRI dynamics during cognitive tasks never seen during training, enabling in-silico experiments.
Low Plasma Vitamin C Linked to Lower Gray Matter and Neural Network Gaps
A study of 2,044 older Japanese adults found that low blood plasma vitamin C levels correlate with reduced gray matter volume and diminished connectivity in the brain's default mode network.
AI Stumbles on Classic Attention Test: Why Humans Still Outperform Machines
Top AI models like GPT-4o dropped from 91% to 15% accuracy on a simple color-word test. The study reveals a fundamental gap in machine attention.
Fruit Fly Connectome Reveals Distributed Brain Control of Behavior
Scientists mapped every neural connection in an adult fruit fly, finding that complex behaviors emerge from local circuits rather than a central command center.
How GLP-1 Drugs Lift Mood via Gut Bacteria, Not the Brain
A new study reveals that liraglutide, a GLP-1 agonist for diabetes and obesity, reduces depression by boosting Lactobacillus delbrueckii in the gut, which then calms stress circuits.
Ultra-Processed Foods Linked to Poorer Focus and Dementia Risk
Eating ultra-processed foods, even in small amounts, may impair attention and slow mental processing, and is linked to dementia risk factors, according to a study of over 2,100 adults.
Brain’s Spatial Organization Weakens with Age and Dementia, MRI Study Finds
New research shows that the brain's multifractal structure gradually disappears with age and dementia, turning from complex to simple—a potential early marker of decline.
Hyperbolic Brain Geometry Boosts Memory Capacity and Decoding
New research shows the brain uses a hyperbolic geometry to encode spatial information, improving memory capacity and accuracy. A new AI model based on this geometry outperforms leading models.
Uninherited Parental Genes Shape Child’s Height, BMI, and Academic Skills
A study of over 30,000 families shows that parents’ genes you didn’t inherit can influence your height, weight, and school performance as much as your own DNA.
Glucosamine Supplement Linked to Faster Alzheimer's Progression
A major study from UF Health shows glucosamine users with mild cognitive impairment had a 25% higher risk of progressing to dementia. Researchers identify a metabolic pathway that may explain the link.
74 Genetic Locations Linked to Anxiety: Largest Study Maps Brain Pathways
A new genome-wide study of nearly 700,000 people identifies 74 genetic locations tied to anxiety severity, revealing how brain cell communication influences worry.