About the Authors
Computer Science, University of Southern California, Los Angeles, California, United States of America
Brain and Cognitive Sciences, Seoul National University, Seoul, Republic of Korea
Department of Rehabilitation Medicine, Emory University, Atlanta, Georgia, United States of America
Biokinesiology, University of Southern California, Los Angeles, California, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: YH NS CH. Performed the experiments: YH SW CW. Analyzed the data: YH NS. Contributed reagents/materials/analysis tools: SW CW. Wrote the paper: NS YH.