Fig. 6

I/O curves of OABR wave III amplitude and latency as a function of laser pulse width. The individual data measured across animals (n = 4) are shown by the different dash lines, and the mean is shown by the solid diamond with the standard error. During the stimulation process, the laser pulse repetition rate was set at 11 Hz and the laser output peak power at 1 W (0.2 mJ/pulse laser pulse energy at 200 μs pulse width). The pulse width was varied from 100 to 800 μs. a The OABR wave III amplitude kept steady with the pulse width widened in 100–800 μs range. b The OABR wave III latency period basically maintained stable with the pulse width widened in 100–800 μs range