Intelligence Research & Cognitive Science Blog

Chess grandmasters like Kasparov store 100,000+ board patterns and use deliberate practice to sharpen working memory, pattern recognition, and strategic re...

fMRI studies reveal that mindfulness, TM, and focused attention meditation increase gray matter density and improve working memory by up to 16%. Here is wh...

Why high-IQ individuals are especially prone to overthinking and analysis paralysis, the neuroscience of rumination, and evidence-based CBT strategies to b...

Discover the neuroscience behind mental fatigue: how adenosine buildup, glucose depletion, and prefrontal cortex overload cause your brain to slow down, an...

Discover the science behind morning routines of high-IQ individuals, from circadian rhythm optimization to the cortisol awakening response, with real examp...

Explore 15 research-backed brain foods, from omega-3-rich fish to flavonoid-packed berries, and learn how the MIND diet can protect cognition and sharpen focus.

Discover 10 neuroscience-backed habits proven to accelerate cognitive processing speed, from sleep architecture optimization to strategic brain training, e...

Explore the psychometric principles behind fair online IQ testing, from item response theory and adaptive algorithms to differential item functioning and b...

Challenge your working memory against Miller's famous 7 plus or minus 2 limit. Discover the science of chunking, digit span testing, and proven exercises t...

Understand the real difference between mental age and IQ, from Binet's original concept to modern deviation scoring, and discover what your results practic...

Reaction time correlates at r = -0.20 to -0.50 with IQ scores, and the variability of your reaction times may be even more revealing than the average speed...

Master pattern recognition with 10 worked examples and step-by-step solutions. Learn the five core pattern types found on IQ tests - rotation, progression...