Iq | featured news

The researchers didn't find the same IQ dip for people who became frequent users of pot after 18. Although experts said the new findings are not definitive, they do fit in with earlier signs that the drug is especially harmful to the developing brain.

A Texas man convicted of killing a police informant was executed Tuesday evening after the U.S. Supreme Court rejected arguments that he was too mentally impaired to qualify for the death penalty.

A report claiming Internet Explorer users scored lower on IQ tests than users of other Web browsers appears to have been an elaborate hoax.

Are users of other Web browsers smarter than the people who use Microsoft's Internet Explorer? A new survey doesn't quite say so. But it sure as heck suggests it. The survey by AptiQuant, a Vancouver-based Web consulting company, gave more than 100,000 participants an IQ test, while monitoring which browser they used to take the test.

Three independent studies released today tracked 400 children. Those who were most heavily exposed to pesticides in utero showed up to a 7-point ...

Researchers have shown for the first time that if a child is diagnosed with autism as early as 18 months of age, offering the toddler age-appropriate, effective therapy can lead to raised IQ levels and improved language skills and behavior.

The canine IQ test results are in: Even the average dog has the mental abilities of a 2-year-old child. The finding is based on a language development test, revealing average dogs can learn 165 words (similar to a 2-year-old child), including signals and gestures, and dogs in the top 20 percent in intelligence can learn 250 words.

Researchers for the first time have linked air pollution exposure before birth with lower IQ scores in childhood, bolstering evidence that smog may harm the developing brain.

The results are in a study of 249 children of New York City women who wore backpack air monitors for 48 hours during the last few months of pregnancy. They lived in mostly low-income neighborhoods in northern Manhattan and the South Bronx. They had varying levels of exposure to typical kinds of urban air pollution, mostly from car, bus and truck exhaust.

Toddlers of moms who took the epilepsy drug valproate during pregnancy had lower IQs than the children of women who used other anti-seizure medicines, according to a new study.

A study has found that the thickness of the insulation of our brain's white matter is directly linked to IQ.