Men may be more likely to become addicted to online video games than women, according to a new study presented Wednesday.

The study was presented at the annual meeting of the Radiological Society of North America.

The study compared the brain scans of 32 addicted men and 23 addicted women to that of 30 male and 22 female healthy volunteers.

The scans of the addicted men showed changes in regions associated with impulsiveness. No alterations were seen in addicted women.

Researchers say that the study was small and test results are tentative. They say that more examinations need to be done.