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. 2007 Jan 3;27(1):98–110. doi: 10.1523/JNEUROSCI.2683-06.2007

Figure 8.

Figure 8.

Linear regression analyses using per call mean LLE time (〈LLE〉TIME) to predict call duration. Linear regression analyses were performed for all sites (n = 35) for which sonar call duration and mean LLE time were well approximated by linear relationship. A, Histogram of the r statistic calculated from the linear regression analyses. At each recording site, the 〈LLE〉TIME was the single predictor to estimate sonar call duration. At 23 of 35 sites, regression coefficients are >0.60. B, Linear regression line fits from the 35 sites, in the superior colliculus of three bats. The mean slope for all slopes significantly greater than zero (black lines) is −0.084 ± 0.033. C, r statistics from linear regressions using per call event rate, per call spread, and 〈LLE〉TIME as predictors of sonar call duration plotted against a single-predictor (〈LLE〉TIME) r statistic values. A modest increase in the magnitude of the regression coefficients is observed at the majority of sites, as demonstrated by points lying above the unity line.