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Fig. 8. Firing pattern in swim interneuron 2 (sint2). (A) Activity in
Lsint2 during a brief episode of behavior. Swimming was initiated by
removing a surface from the animal's foot at the first arrow and terminated by
replacing the surface at the second arrow. (B) Action potential bursts in
Lsint2 shown at higher gain and on an expanded time scale. (C)
Alternating bursts in the two antagonistic sint2 neurons recorded
simultaneously during a long episode of swimming.