[Digital Medicine in Japan and the World: ICT Applications in Neurosurgery, Neurology, and Psychiatry].

This paper provides an overview of the use of information and communication technology (ICT) in research on neurological and psychiatric disorders both in Japan and abroad, with a focus on drug discovery, clinical support, and functional rehabilitation. Although Japan's fundamental research meets global standards, its regulatory frameworks and social implementation lag behind those of Western countries. To maintain international competitiveness, it is essential to implement policies that promote health insurance reform, strengthen industry-academia collaboration, and foster the practical deployment of ICT innovations.