Figure 2.

Train estimates of RRP size match sucrose estimates in GABAergic neurons. A, Representative response to exogenous application of 0.5 m sucrose. B, A representative IPSC train (20 stimuli; 10 Hz) recorded from the same neuron as in A. Presynaptic stimulus transients have been blanked for clarity. C, Representative cumulative IPSC area (Cumul. Area) values from the same 20 stimuli, 10 Hz train. The dashed line represents a linear regression fit to data points after 1.5 s to estimate the cumulative area at time 0. D, Summary of the total RRP charge, as determined with trains (cumulative area at time 0) and sucrose applications performed in the same neurons (n = 10). Error bars represent SEM.