IQgenio Blog
Science-backed news on intelligence, neuroscience, and brain training
Spinal Circuit Coordinates Fish Schooling, No Brain Needed
A new study finds a simple spinal circuit lets zebrafish school by matching neighbors' wakes, suggesting collective behavior can arise without high-level cognition.
Why Thinking Doesn't Cost Energy: Physics of Neural Networks
A new paper shows inference in neural networks can be energy-free if slow enough, but learning costs energy per parameter.
Personalized Brain Modeling Predicts Alzheimer's Progression
A new AI model uses MRI and PET scans to create personalized brain maps that predict Alzheimer's cognitive decline better than standard biomarkers.
Schizophrenia Risk Gene ZNF804A Found to Make Neurons Hyper-Excitable
A new study shows that suppressing the schizophrenia risk gene ZNF804A in developing neurons leads to excess protein production and hyper-excitable synapses, linking genetics to brain wiring.
Depression Linked to Stalled Production of New Brain Cells
A major study found that adult depression disrupts the birth of new neurons in the hippocampus, potentially impairing the brain's ability to distinguish new experiences from painful memories, and revealing molecular targets for new treatments.
Shingles Vaccine Linked to 24% Lower Dementia Risk in Large Study
A new study of over 500,000 older adults found that the Shingrix shingles vaccine was linked to a 24% lower risk of dementia over four years, suggesting potential neuroprotective benefits.
How Primate Vision Inspires More Robust AI
New research shows predictive world models mimic primate vision's ability to recognize objects despite appearance changes, pointing to a missing principle for robust dynamic AI.
How Filling Visual Gaps Boosts Sustained Attention: New EEG Study
Researchers found that filling brief blanks between visual targets reduces attentional fluctuations and stabilizes sustained attention, as measured by EEG.
Dendritic Structure Enables Powerful Local Plasticity for Deep Learning in Neurons
Complex dendrites give single neurons local error signals, enabling real-time deep learning via gradient descent—more powerful than global Hebbian plasticity.
Forebrain Circuit Dynamically Regulates Speech Gene Foxp2 to Build Voice
Researchers find that early vocal attempts activate a forebrain circuit that boosts Foxp2 expression, helping shape communication circuits.
Hippocampal Replay: How the Brain Runs Memories Forward and Backward
A new neural model shows how the hippocampus can replay experiences in both forward and reverse order, without needing symmetric brain connections, offering fresh insight into memory consolidation.
Aging Brains Show Stable Language Networks Despite Cognitive Decline
New MIT-led research shows that language networks in the brain remain robust with age, while executive function networks decline. Specialized regions may be protected from aging.