1. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA.
2. The Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA, USA.
3. Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA.
4. McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
5. Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA.
6. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
7. Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA.
8. Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA.
9. Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA.