Although moderate alcohol consumption is known to degrade pedormance in a variety of tasks, the exact nature and extent of such impairments is not well understood.We examined alcohol effects on different levels of visual processing and oculomotor control.On the lowest level (automatic), reflexive responses were tested using the prosaccade task.The automated level, incorporating routine behavior based on implicit leing, was studied using the double step paradigm, while the highest level, representing voluntary con- trol, was examined with antisaccade and memory guided tasks.In addition, sentence reading was included as a prototypical complex task with high ecological validity.