Adult and child psychiatric disorders, including mood disorders, psychosis, substance abuse, and dementia, represent a large source of disability in the general population. The urgency to develop new treatments that may have better efficacy and tolerance is explained by the fact that none of the treatments currently available can be considered completely satisfying. Several reasons underlie this relative failure, such as, for example, (1) lack of knowledge of the mechanisms involved, (2) heterogeneity of most psychiatric disorders (that have good inter-rater validity but weak relationship...

Adult and child psychiatric disorders, including mood disorders, psychosis, substance abuse, and dementia, represent a large source of disability in the general population. The urgency to develop new treatments that may have better efficacy and tolerance is explained by the fact that none of the treatments currently available can be considered completely satisfying. Several reasons underlie this relative failure, such as, for example, (1) lack of knowledge of the mechanisms involved, (2) heterogeneity of most psychiatric disorders (that have good inter-rater validity but weak relationship...