IQgenio Blog
Science-backed news on intelligence, neuroscience, and brain training
Flawed Math Overstates Alzheimer's Drug Benefit 29-Fold
A new study reveals that quantile aggregation, a statistical method used to evaluate Alzheimer's drugs, can exaggerate the link between amyloid removal and cognitive improvement by 29 times.
Grid and Place Cells Co-Emerge in a Simple Sensory Prediction Model
A new model shows grid and place cells can emerge together from a single sensory prediction objective, without separate supervision.
Anxiety linked to low brain choline in landmark study
A meta-analysis of brain scans found that people with anxiety disorders have 8% lower choline levels in the prefrontal cortex, suggesting nutrition may play a key role.
Cannabis and Tobacco Together Triple Psychosis Risk in High-Risk Youth
A study of over 1,000 teens and young adults found that combining cannabis and tobacco nearly triples the risk of developing schizophrenia or other psychotic disorders among those already at clinical high risk.
Even Low Air Pollution Levels Linked to Cognitive Decline, Brain Damage
Long-term exposure to low levels of air pollution, even within clean air standards, is linked to worse memory, comprehension, and processing speed, plus visible brain damage on MRI.
Brain Health Shields Memory from Early Alzheimer's, Study Finds
New research shows that maintaining overall brain health can protect memory and thinking from early Alzheimer's pathology, even before symptoms appear.
Memory Loss Reversed by Boosting Brain Cell Energy Factories
Scientists restored memory in dementia-like mice by temporarily boosting mitochondrial activity, suggesting energy failure may drive cognitive decline before neurons die.
Single Psilocybin Dose Rapidly Reduces Depression Symptoms in New Trial
A phase 2 clinical trial finds that a single 25 mg dose of psilocybin, with therapy, rapidly reduces depression symptoms, with 53% remission at 6 weeks.
Alcohol Causes 60+ Diseases; Some Harms Reversible With Abstinence
A new review confirms alcohol is a direct cause of over 60 diseases, including liver cirrhosis and dementia. While some cardiovascular and brain damage can partially reverse with abstinence, chronic conditions like cirrhosis are permanent.
How Chickadees Store Thousands of Locations: A Geometric Phase Transition in Hippocampal Memory
Food-caching chickadees achieve extreme spatial memory through a rigid, crystalline neural geometry in the hippocampus, offering over 100x capacity vs non-caching birds.
New AI Method Reveals What Each Brain Region Actually Sees
Researchers introduce MINE, a framework that uses AI to pinpoint which visual features activate each millimeter-scale brain region, revealing finer selectivity than previously known.
Rogue Antibodies Cause Tau Tangles by Overexciting Neurons
A direct causal link: patient-derived anti-IgLON5 antibodies trigger neuronal hyperactivity, causing Tau proteins to detach and form toxic aggregates.