Professor Kim Sungki’s research team from the Department of Biomedical Engineering at Sungkyunkwan University (SKKU) and Professor Choi Myunghwan’s team from Seoul National University (SNU) has developed a technology that explores the brain of a mouse. The research revealed the brain’s network structure by using optogenetic stimulation patterned through a beam projector. After manipulating the movement of the cerebral cortex using such stimulation, the team scanned the whole cerebral area with functional Magnetic Resonance Imaging (fMRI). They could observe the changes in the brain when the optogenetic technology irritated a particular brain activity. The significance of the research lies in the unique usage of optogenetics. Previously, the stimulation was conducted by inserting an optical fiber into the brain’s target spot, which had a high risk of causing unexpected harm to the brain. Moreover, the maximum quantity of fibers that can be inserted was limited. In contrast, the beam projector does not stimulate a particular spot of the organ but triggers the actions of the entire brain by firing an optogenetics ray. Therefore, it enabled the team to freely irritate the different spots of the brain simultaneously. The result of the research was run in the reputable scientific journal Neuron on March 31st.