Fig. 6.

Whisker movement evoked by optical and electrical stimulation of rat vibrissae motor cortex in vivo. (a) Whisker trajectories according to optical stimulation with and without antibody-conjugated GNRs. Optical stimuli (indicated by yellow line) are applied with train of fifteen pulses at 300 Hz with pulse duration of 1.5 ms and a period between the trains of 2 s. (b) Whisker trajectories when electrical stimuli are applied with 66.7 ms train of twenty monophasic, negative, 0.2 ms pulses at 300 Hz with amplitude of 2.4 mA.