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Fig. 11. Mutual inhibition between antagonistic sint2 neurons. Simultaneous
recordings from Lsint2 and Rsint2 in a quiescent whole
animal preparation. (A) Lsint2 (upper trace) was driven to fire two
bursts of action potentials while recording membrane voltage in
Rsint2 (lower trace) at higher gain (time of stimulus marked by bar).
(B) Stimulation of Rsint2 to fire three bursts while recording from
Lsint2. Action potentials were truncated by the recording device in
the high gain records. The firing frequency during driven bursts was similar
to what is seen during normal swimming (see
Fig. 8). Similar results were
obtained in each of five whole animal experiments.