Figure 11. Withdrawing serotonin from olivary neurones induces subthreshold oscillations.

A, recording from an olivary neurone in which subthreshold oscillations were induced by withdrawing serotonin. B, faster sweep-speed traces prior to serotonin (i) and after withdrawing serotonin (ii) from three neurones. C, autocorrelation histograms of the membrane potential from the three neurones shown in B prior to applying serotonin and after withdrawal. Events were defined as moments in which the membrane potential exceeded its mean plus 1.6 standard deviations. Bin width is 1 ms.