In addition, brain imaging studies in rats and humans have shown alterations in gray matter volume and white matter integrity in the brain caused by the effects of chronic pain. (sciencedaily.com)
As a result, the first imaging studies of sex in the brain have appeared only in the past few years. (discovermagazine.com)
In imaging studies in humans, similar brain regions are turned on when people are suffering from cocaine craving. (sciencemag.org)