Hyun-Ho Lim1,2, Kyeong Kyu Kim3, Chul-Seung Park4. 1. Department of Structure & Function of Neural Networks, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea. hhlim@kbri.re.kr. 2. Department of Brain & Cognitive Sciences, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu, Republic of Korea. hhlim@kbri.re.kr. 3. Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea. 4. School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju, Republic of Korea.