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. 2008 Jul 16;3(7):e2673. doi: 10.1371/journal.pone.0002673

Figure 4. Mean relative population membrane potential.

Figure 4

The ΔV(t) mean over all animals. The means were calculated from the relative means from each animal (1/5 Σ mean ΔV(t)rel, animal). The amplitude of the ON responses and OFF responses were significantly smaller and shorter for the 25 ms and 50 ms durations (p<0.01), compared to the other durations. The other differences in amplitudes were not significant. Note the reduction of the ΔV(t) amplitude at durations 133 ms and shorter, the truncation of the 25 ms and 50 ms ON responses, the delayed OFF responses and the negativity of ΔV(t) for the 250 ms duration in between the ON and OFF responses. The standard errors are shown in Fig. 6.