His research interests are in the fields of Brain-Computer Interfaces (BCI), Machine Learning, Neural Signal & Image Processing, Data Analytics, and Artificial Intelligence. He published 400 refereed journal and conference papers and holds 26 granted patents and patent applications. He licensed 15 patents/technologies to five companies in Singapore and USA. He delivered more than 70 keynote speeches and invited talks (including the keynote, Brain-Computer Interfaces for Stroke Rehabilitation, at the opening ceremony of the 7th International BCI Meeting, Asilomar, USA, May 2018). He is a recipient of the international Annual BCI Research Award (First Prize), the King Salman Award for Disability Research, the Nanyang Research Award, the IES Prestigious Engineering Achievement Award, the Achiever of the Year (Research) Award, the Finalist of the President Technology Award, and the winner of BCI Competitions.