What is Artificial Intelligence?

The left brain indicates a normal state while the right brain indicates general intelligence correlated to IQ scores.

Recently, a study about mapping the human brain has been published in the the early edition of the Proceedings of the National Academy of Sciences.

A team of neuro-scientists from the California Institute of Technology (Caltech), the University of Iowa, the University of Southern California (USC), and the Autonomous University of Madrid collaborate to have successfully mapped the brain to measure general intelligence.

According to Ralph Adolphs, one of the authors, "general intelligence is also referred to as the Spearman's g-factor" but the underlying concepts are quite vague.

Using brain imaging techniques, the team examined a uniquely wide range of data set of 241 brain-lesion patients who all took the IQ tests.

Then, the scientists mapped the area of each patient's lesion in their brains, and correlated them with the patient's IQ score to produce a map of the brain regions that affect general intelligence.

During the examinations, the researchers were amazed to find out that, instead of living in a single structure, general intelligence is distinguished by a network of regions across both sides of the brain.

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