Intelligence

Chess Experts Differ in Chunk Memory & Brain Connectivity vs. Novices (2024 Study)

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Expert chess players use chunk memory to make better decisions, showing unique brain connectivity that helps them perform well even against tougher opponents. Highlights: Consistent Performance: Expert chess players perform equally well regardless of the difficulty level, unlike beginners whose performance drops with increased difficulty. Stronger Brain Connections: Experts show stronger connections in specific brain …

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Genetics & Intelligence (IQ): How DNA Shapes Cognition, Problem Solving, etc.

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Our genes influence more than just our raw intelligence and problem-solving abilities. The latest discoveries in the genetics of intelligence are showing how our DNA shapes how we learn, our educational attainment, occupational success, and even our health outcomes. Genetic research is revealing the deep connections between inherited cognitive capacities and multiple aspects of life. …

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Neurobiological Correlates of Human Intelligence (IQ): Genetics, Brain Regions, Cellular Structures

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Human intelligence is a complex cognitive trait that has fascinated scientists and philosophers for centuries. New research is shedding light on the neurobiological underpinnings of intelligence, from genes to cells to brain networks. Key Facts: Intelligence is one of the most heritable human behavioral traits, with genetics explaining 50-80% of variability between individuals. Over 1000 …

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Neuroanatomy of Intelligence (IQ): Correlates from MRI Research

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Human intelligence has long fascinated scientists. With modern neuroimaging methods like MRI, we now have an unprecedented ability to examine the biological basis of intelligence in the living brain. Key Facts: Larger brain size predicts greater intelligence, but regional brain volumes matter more than total size. More intelligent individuals tend to have greater volumes in …

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Intelligence, Psychopathy, Aggression: Sex Differences (Males vs. Females)

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Psychopathic individuals are known to commit a disproportionate amount of violence and crime. Yet the connections between psychopathy, intelligence and aggression are complex. A new study unpacks the links between these dangerous traits in men and women. Key Facts: Psychopathy was assessed using the Psychopathy Checklist: Screening Version which divides psychopathy into 4 facets – …

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High Neuroticism Increases Depression Risk: Intelligence May Help Counteract

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New research suggests that having higher intelligence may reduce the risk of depression associated with neuroticism, a personality trait linked to emotional instability. Key Facts: Neuroticism is strongly associated with an increased risk of depression and psychological distress. Intelligence does not appear to protect against clinical diagnosis of major depressive disorder in highly neurotic individuals. …

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Higher Intelligence (IQ) in Youth Linked to Lower Depression as an Adult (Age 50)

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A recent longitudinal study provides new insight into the association between intelligence in adolescence and mental health outcomes in middle age. The research indicates that higher intelligence in youth is linked to a lower risk of some common mental health issues at age 50, but a greater likelihood of receiving a depression diagnosis. Key facts: …

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Genetics Linked to Intelligence (IQ), Health, Longevity: Polygenic Scores

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Intelligence predicts health and mortality – but why? New research reveals some genes are implicated in both. Key facts: Intelligence test scores predict mortality, illnesses, and health behaviors. Higher scores indicate lower risk. Both intelligence and health/disease outcomes are highly polygenic – many genetic variants of small effect contribute. Genetic correlations exist between intelligence and …

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