Evaluation Study of New Compounds With Potential Use in Schizophrenia

Inclusion Criteria: * Healthy volunteers * Informed consent given by the subject * Both, female and male subjects may participate * Age between 18 and 65 years * Negative drug-screening at the time of screening * In female participants in fertile age, reliable contraception, which means contraception's pearl-index is equal or smaller than 1. * Non-Smoker * Body Mass Index between 18 and 40. Exclusion Criteria: * Lack of accountability * Any current psychiatric disorder through the Structured Clinical Interview for DSM-IV (SCID) at the time of screening * Any known psychiatric or neurological illness in the participant's history. * Known family history concerning psychiatric disorders * Relevant use of cannabis (which is defined on the present state of knowledge as at the most five times lifetime-consumption and no consumption for at least one year) * Pregnancy or lactation phase in female at the time of screening * Severe physical (internal) or neurological illness, especially cardiovascular, renal, advanced respiratory, haematological or endocrinological failures or infectious diseases (acute hepatitis A, B or C or HIV) assessed at the time of the screening by the subject's history, clinical examination and laboratory testing, at the discretion of the investigator * Consumption of any illegal drugs (except cannabis in history, see above)