According to another expert by experience:
Neuroscience/Psychiatry/Mental Health is like many other research domains in that most of what we want to know we either don't know or are not sure of. There are many barriers to implementing clinical research trials; funding, regulatory red tape, cultural inertia within medical organisations, etc. One of the principal barriers is the lack of awareness of the importance of research amongst the clinical care work force. Ben Gray's blog highlights the need for research and the need for both clinicians and the public as well as academics and associated financial and regulatory bodies to support it.