Affiliation: | 1. Department of Electrical and Computer Engineering, Johns Hopkins University, Barton Hall 105, 3400 North Charles Street, Baltimore, MD 21218, USA;2. Department of Bioengineering, University of Maryland, College Park, MD 20742, USA;3. Department of Psychology, University of Minnesota, Minneapolis, MN 55455, USA;4. Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA |