He is also a visiting professor at the Biological Engineering Division, Massachusetts Institute of Technology. Before joining NTU, he was a visiting fellow at the National Institute of Mental Health (Bethesda, Maryland) and a visiting scientist at the Max-Planck-Institute of Cognitive and Brain Sciences (Leipzig, Germany). The focus of Dr. Rajapakse's research is the neural correlates and molecular basis of human brain function, using imaging and bioinformatics approaches, leading to new drugs and behavioral and stem cell therapies for brain disease. He has authored more than 200 research publications in refereed journals, books, and conference proceedings in the fields of brain imaging, computational biology, and machine learning.