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Fig. 3. Effect of stimulus difference frequency (i.e. the difference between the
subject fish's EOD frequency and the stimulus frequency) on the number of
chirps (A) and GFRs (B). The numbers of multi-peaked chirps and multi-peaked
GFRs are indicated by broken lines, and the total numbers of chirps and GFRs
by solid lines. Stimulus frequency did not significantly affect the number of
any of these EOD modulations.