 In order to evaluate the error processing in a domain general perspective, the electrophysiological research will include three computerized tasks. In all three procedures the subjects will be asked to perform a task, while a net of electrodes for EEG acquisition will be placed on their head. During all tasks a number of within task breaks are inserted in order to reduce the discomfort of the subjects as much as possible. The total procedure, including all tasks, breaks within and in between tasks, will require approximately 2 hours. 