Fig. 5. The effects of isoflurane on the fast and slow components of the inhibitory postsynaptic currents derived from biexponential fits. (A ) Changes in the fast (○) and slow (•) time constants. (B ) Changes in the amplitudes of the fast and slow components, normalized such that the sum of the fast and slow components is equal to unity in the absence of isoflurane. (C ) Changes in the charge transfer for the fast and slow components, normalized such that the total charge transfer for the control equals unity. The points represent mean values (for an average of 12 cells). In each case, the line is drawn by eye and has no theoretic significance.