Fig 3. No significant change in MEPs induced by electrical stimulation of motor cortex in ChR2 transgenic mice.

A. Representative traces showing similar long-latency motor evoked potentials (MEPs) in wild type (WT; black) and ChR2 (blue) mice. B-C. There were no significant differences in stimulating thresholds (B) and time to peak amplitude of MEP (C) between WT and ChR2 mice.