Recent quotes:

A Test That Finds the Perfect Drug? - The Atlantic

Brain Resource, meanwhile, gives depression patients an online test that gauges memory, self-regulation, and emotion. Their responses are then compared against a database that contains the results of 1,000 individuals who took the same test. The thinking is that patients who score similarly will be helped by similar drugs. Currently, Brain Resource evaluates a patient’s likely response to three common depression drugs, which are sold under the brand names Lexapro, Zoloft, and Effexor. The online test takes 40 minutes, and according to Brain Resource’s founders, the results are available within two minutes. (The test is currently awaiting FDA approval.)

Computational Neuroscience Approach to Biomarkers and Treatments for Mental Disorders. - PubMed - NCBI

For many disorders, the reported accuracies have reached 90% or more. However, we note that rigorous tests on independent cohorts are critically required to translate this research into clinical applications. Finally, we discuss the utility of the disorder-specific features found by the data-driven approach to psychiatric therapies, including neurofeedback. Such developments will allow simultaneous diagnosis and treatment of mental disorders using neuroimaging, thereby establishing "theranostics" for the first time in clinical psychiatry.