The human brain has been described as the most complex object in the known Universe. Despite explosive growth in scientific understanding over the past century, many questions remain

• What is the brain doing, when everything is fine, when there is a clinical problem, or when a person is having a peak experience and is 'better than fine'?
• How do successful treatments work for people with common brain disorders (e.g., depression, epilepsy, anxiety, PTSD, ADHD)?
• What if you could choose to change how your brain functions?

Translating developments in neuroscience into better treatments for the millions of people experiencing brain disorders has been my professional passion. Over the past quarter century at UCLA, I've worked at improving diagnostic technologies and biomarkers to match patient to treatment more effectively (sometmes termed 'precision medicine'), and have investigated medications and psychotherapy in clinical trials. More recently I've focused on health IT -- how machine learning and mobile apps can improve health care -- and new neuromodulation treatments -- therapies that use electric or magnetic signals to treat disorders. I've worked as well to move trigeminal nerve stimulation (TNS) out of the research lab and into widespread clinical use in the U.S. and worldwide at NeuroSigma, Inc. This is my professional activities website.