Recently, a lot of evidence for a relation between measures of cognitive performance and personality characteristics has been collected. The use of computer based latency measures is often used to study mental processes in cognitive, as well as, in personality research On the basis of these relationships we can ask a question that relates to the practical usefulness (validity) of processing speed, accuracy of performance and personality measures in predicting impulsive behavior.

Inclusion Criteria:

• Men and women at age - 20-50 years

Exclusion Criteria:

• History of psychiatric disorders, previous hospitalizations and psychopharmacological treatments
• History of alcohol and substance abuse

1. Men and women at age - 20-50 years
2. The following demographic and anamnesis' data should be readily available:

Age, ethnicity, marital and educational status. History of physical disorders and pharmacological treatments.