Most of the studies compare the cognitive performances of expert gamers with those of non-gamers, and suffer from well-known pitfalls of experimental design.
"If you maintain a calm, non-aggressive manner it's a well-known fact that eventually the aggressor will mimic your manner and calm down, " says Mr Eason.
Its well known that the BCDC uses for measures: Non-Farm Payrolls, Industrial Production, Real Retail Sales and Real Personal Income, to date recessions.
Syria's chemical weapons program has been well known says Robert Einhorn, a former assistant secretary of state for non-proliferation issues now at the Center for Strategic and International Studies in Washington.