Introduction.- Why Now the Need for a New Clinical Trial Model for Antidepressants?.- Reconceptualizing Depression and the Componential-Specific Model of Clinical Trials.- Aims and Basic requirements of Clinical Trials: Conventional and Component-Specific Models.- Methods for Measuring the Components and Profile of Drug Actions: The Multivantaged Approach.- The Component-Specific Model Applied in a Clinical Trial: An Example.- Comparing the Component-Specific...