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Fig. 5. A cancellation signal is developed after five 30 s couplings separated by
irregular rest intervals. (A) A raster plot showing activity of an AEN before,
during and after the five 30 s couplings separated by variable rest intervals.
The cancellation signal is apparent when parallel fiber stimulation resumes
after the last rest period. (B) Histograms of AEN activity from the periods
indicated. Note the AEN response to the dipole stimulus gradually declines
with each additional coupling cycle. Labels as in previous figures.