Alcohol dulls brain 'alarm' that monitors mistakes, study finds

Alcohol dulls brain 'alarm' that monitors mistakes, study finds: Most people have witnessed otherwise intelligent people doing embarrassing or stupid things when they are intoxicated, but what specifically happens in the brain to cause such drunken actions? A new study testing alcohol's effects on brain activity finds that alcohol dulls the brain "signal" that warns people when they are making a mistake, ultimately reducing self control.