Dr. Kamarajan serves as Associate Professor of Psychiatry at SUNY Downstate Health Sciences University, Brooklyn, NY, USA. He has expertise in clinical psychology, neuropsychology, brain electrophysiology, neuroimaging, computational programming, signal/image processing and statistics, psychological assessments and treatment methods. He has been an active investigator in a few NIH-sponsored research projects. Dr. Kamarajan has served as a reviewer on grant applications from NIH and other agencies. Dr. Kamarajan has published over 150 research papers on a range of topics, primarily studying structural and functional brain abnormalities in addiction. His recent work includes estimation of brain age using EEG and MRI measures in alcohol use disorder (AUD) & other substance use disorders (SUD). He has adjudicated several PhD dissertations (30+) on applied psychology. Dr. Kamarajan has been involved with teaching, training, and mentoring medical students, postdoctoral researchers, and psychiatry residents. He is also the course director of an elective “Neurophysiology of Alcohol and Drug Addiction” for the final year medical students. He also serves an expert reviewer as well as academic editor in several journals related to neural and behavioral sciences, addiction, and mental health. He also serves on the committees within and outside the campus (including the Executive Committees of College of Medicine and Center-wide, and IRB at SUNY Downstate, and at the SUNY Faculty Senate).