Figure 6.

The correlations between the preferred frequency and various characteristics of the realistic waveforms. A–O, Fifteen properties of waveform were analyzed, including duty cycle (A), peak phase (B), area under the waveform (C), portion >75% (D), portion <25% (E), and slope within different parts of the waveform (F–O). Among these properties, the rising slope at the 75–100% amplitude (J) showed the strongest (negative) correlation. Each yellow dot shows the measurement at that value of the parameter in a single experiment. Regression lines were fit to all data points, not to the mean values. Error bars show SD values. For detailed information see Table 2.