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Fig. 4. Iso-intensity response curves for the entire population of juvenile and
adult midshipman auditory saccular afferent neurons to 130 dB (re 1 µPa)
iso-intensity tones. The numbers of animals and auditory saccular afferent
neurons tested are indicated, respectively, in parentheses. Iso-intensity
curves based on vector strength (VS) of synchronization show VS values for
each frequency tested in terms of the median (black filled symbols), 25th
percentile (bottom bar) and 75th percentile (top bar).