About the Authors

Kyongsik Yun

Affiliations Division of Biology, Computation and Neural Systems, California Institute of Technology, Pasadena, California, United States of America, Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea

Dongil Chung

Affiliation Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea

Bosun Jang

Affiliation Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea

Jin Ho Kim

Affiliation Division of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea

Jaeseung Jeong

jsjeong@kaist.ac.kr

Affiliation Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KY DC JJ. Performed the experiments: KY DC BJ JHK. Analyzed the data: KY BJ. Contributed reagents/materials/analysis tools: KY DC BJ JHK. Wrote the paper: KY DC BJ JJ JHK.