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Researchers also found activity as expected in regions of the brain that encode visual and auditory inputs, as well as the parietal lobe, which is known to be involved in numerical and calculation-related functions.

MRI scans revealed that most of the brain activity was concentrated in the angular gyrus, a portion of the parietal lobe of the brain.

Researchers at the National Institutes of Health have found overactivation in many brain regions, including the frontal and parietal lobes and the amygdala, in unmedicated children with anxiety disorders.

The temporoparietal junction, a brain region where the temporal and parietal lobes meet, toward the back of the brain behind the ear, was particularly active with gamma waves.

This was the case even if the lesion extended into some parts of the left temporal and parietal lobes, respectively located behind the ear and at the back and top of the head.