Associate Professor Hiroto Sekiguchi and Ph.D. candidate Hiroki Yasunaga in the Department of Electrical and Electronic Information Engineering at Toyohashi University of Technology have developed a MicroLED neural probe for neuroscience. This MicroLED tool can optogenetically control and observe neural activity in the brain. Neural activity was successfully recorded using the neural probe, and sufficient light output was obtained from the MicroLED to activate neural activity. The developed MicroLED tool will contribute to the development of neuroscience research-purposed optogenetic technology.