Back in February, the US Court of Appeals shot down a California law that banned the sale or rental of violent video games to minors. Shortly thereafter, State Senator Leland Yee petitioned the US Supreme Court to review the case. Now, along with California's Psychiatric and Psychological Associations, Yee has filed an amicus curiae brief with Court that elaborates on the reasoning behind the law. Within the brief (PDF) are some interesting quotes: "Parents can read a book, watch a movie or listen to a CD to discern if it is appropriate for their child. These violent video games, on the other hand, can contain up to 800 hours of footage with the most atrocious content often reserved for the highest levels and can be accessed only by advanced players after hours upon hours of progressive mastery. ... Notably, extended play has been observed to depress activity in the frontal cortex of the brain which controls executive thought and function, produces intentionality and the ability to plan sequences of action, and is the seat of self-reflection, discipline and self-control." The video game industry has filed its own amicus brief to dispute Yee's claims.