Fig. 3.

Frequency dependence of the long-latency patches. A: beam (top) and long-latency patches (bottom) evoked by different frequencies of PF stimulation, as indicated (only 5 of 8 tested frequencies are shown). All other stimulation parameters were kept constant (10 pulses of 200 μA, 100 μs). The patches were not evoked by 10-Hz stimulation, were present at 30 Hz, and peaked at 100 Hz. B: time courses of the evoked response in patch 3 (labeled at 50 Hz in A) at different PF stimulation frequencies. C: peak time of patches evoked by different PF stimulation frequencies (n = 5 mice). D: amplitude (mean ± SD) of the beam and patches as a function of stimulation frequency in 5 mice. Both the beam and the long-latency patches exhibited frequency dependence; however, the patches were not evoked at 10 Hz and showed a more pronounced dependence on the frequency of PF stimulation.