IQgenio Blog
Science-backed news on intelligence, neuroscience, and brain training
First Complete Adult Fruit Fly Connectome Reveals Decentralized Motor Control
Researchers publish the first complete, synapse-level wiring diagram of an adult fruit fly's central nervous system, revealing that motor control is distributed across local neural circuits rather than a central brain hub.
Cortisol Discovery: How Stress Hormone Closes Brain’s Early Learning Windows
Harvard researchers discover cortisol triggers astrocytes to lock neural connections, closing critical periods of brain plasticity. Potential for reopening windows studied.
Long-Term Air Pollution Exposure Linked to Semantic Memory Decline
A 17-year study finds that fine particulate air pollution (PM2.5) selectively degrades semantic memory, accelerating cognitive decline beyond normal aging.
Neural Fields: A New Model for How the Brain Predicts and Learns Offline
New research proposes 'isomorphic world models' using neural fields that preserve spatial structure, enabling physics prediction and offline learning without teleportation.
Brain’s ‘Disappointment Meter’ Neurons Drive Behavioral Change
Researchers discovered a specific neuron type in the lateral habenula that fires in proportion to the gap between expected and actual rewards, acting as a biological 'disappointment meter.'
Your Brain Doesn’t Make Decisions the Way You Think
New research from Indiana University challenges the traditional 'sandwich model' of decision-making, showing the brain has no dedicated decision-making center.
Men's spatial abilities more vulnerable to stress than women's emotion recognition
New research finds men's advantage in spatial cognition shrinks in nations with higher stressor exposure, while women's emotion recognition advantage remains stable.
Short-Term Synaptic Plasticity Protects Goal-Directed Planning Against Noise
Researchers show that short-term synaptic plasticity stabilizes goal information in prefrontal-cortex-inspired models, keeping performance above 89% even under noise.
How Whisper AI's Middle Layers Match Human Brain Activity During Speech
Intermediate layers of OpenAI's Whisper model best predict human ECoG responses during speech, revealing hierarchical organization in cortical speech processing.
54,583 Brain Scans Map White Matter Aging, Validate 'Last In, First Out' Theory
Researchers analyzed 54,583 diffusion MRI scans to create lifelong brain charts for white matter, validating the 'last in, first out' theory of cognitive aging and enabling personalized detection of brain disease.
Stroop Test Reveals AI's Attention Limits vs. Human Focus
A new study using the classic Stroop test shows that even advanced LLMs like GPT-5 crash under cognitive load, while humans maintain focus—highlighting a key difference in executive control.
Neuromorphic circuits boost AI learning from few examples, rivaling human brain
Hybrid neural networks with biological-inspired circuits achieve high accuracy from few examples and resist noise, outperforming standard deep learning.