Tag Archives: intelligence

The Diet That Lowers Your Intelligence

The diet causes lower intelligence and 50% more laziness. High-fat foods can reduce intelligence in just 9 days, research finds. Cognitive performance reduced by 20% in just over a week after eating a high-fat diet. The study on rats fed … Continue reading

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Intelligence is associated with the modular structure of intrinsic brain networks

General intelligence is a psychological construct that captures in a single metric the overall level of behavioral and cognitive performance in an individual. While previous research has attempted to localize intelligence in circumscribed brain regions, more recent work focuses on … Continue reading

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The Role of Intelligence in Social Learning

Studies in cultural evolution have uncovered many types of social learning strategies that are adaptive in certain environments. The efficiency of these strategies also depends on the individual characteristics of both the observer and the demonstrator. We investigate the relationship … Continue reading

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Brain-imaging modern people making Stone Age tools hints at evolution of human intelligence

How did humans get to be so smart, and when did this happen? To untangle this question, we need to know more about the intelligence of our human ancestors who lived 1.8 million years ago. It was at this point … Continue reading

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Your Environment Could Be Changing Your IQ on a Genetic Level

The nature-versus-nurture argument of intelligence just got a lot more complicated with the discovery that the environment can modify the expression of a key gene in the brain, affecting intelligence far more than we previously thought. Such a finding may … Continue reading

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Diet Linked to Intelligence

People with more of this in their blood did better on intelligence tests. Eating leafy greens helps preserve intelligence over the lifetime, research finds. Leafy greens and other foods contain lutein, a plant pigment that protects the brain from aging. People with … Continue reading

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On How Much of Intelligence and Personality is Heritable

Pedigree-based analyses found that genetic differences account for 50–80% of the variation of observable (phenotypic) traits. Personality traits account for 34–48% of the variance being explained by genetic differences. Molecular genetic studies have also found that intelligence and personality variables … Continue reading

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Brain metabolism predicts intelligence

A healthy brain is critical to a person’s cognitive abilities, but measuring brain health can be a complicated endeavor. A new study by University of Illinois researchers reports that healthy brain metabolism corresponds with fluid intelligence – a measure of … Continue reading

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Brain Activity at Rest Provides Clue to Intelligence

A new study reports our level of brain activity while at rest is linked to our ability to perform well in cognitive tests. The ability of an adult to learn and to perform cognitive tests is directly linked to how … Continue reading

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Theory: Flexibility is at the heart of human intelligence

Centuries of study have yielded many theories about how the brain gives rise to human intelligence. Some think it arises from a single region or neural network. Others argue that metabolism is key. A new article makes the case that … Continue reading

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