[1] Boston Univ, Dept Elect & Comp Engn, Boston, MA 02215 USA
[2] Boston Univ, Dept Biomed Engn, Boston, MA 02215 USA
[3] Yale Univ, Dept Cellular & Mol Physiol, New Haven, CT 06520 USA
[4] Yale Univ, Dept Neurosci, New Haven, CT 06520 USA
[5] John B Pierce Lab, New Haven, CT 06520 USA
[6] Boston Univ, Ctr Neurophoton, Boston, MA 02215 USA
[7] Boston Univ, Dept Biol, Boston, MA 02215 USA
[8] Boston Univ, Ctr Syst Neurosci, Boston, MA 02215 USA