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. 2002 Sep 1;22(17):7434–7443. doi: 10.1523/JNEUROSCI.22-17-07434.2002

Fig. 2.

Fig. 2.

A, A dual-component EPSP is shown.B, A dual-component EPSC from the same cell as inA is shown. Note that the late component of the EPSC, relative to the peak of the EPSC, is smaller than the late component of the EPSP, relative to the peak of the EPSP. C, A summary of data is shown, comparing the size of the late component, measured at 200 msec after stimulation, relative to the peak of the synaptic signal. The late component of the EPSP is significantly larger, relative to the peak, than the late component of the EPSC. A passive membrane model with a membrane time constant of 20 msec reproduced this increase (see below). D, A simulated EPSP has been generated by using the EPSC in B in a passive membrane model. Calibration: A, 1.3 mV, 100 msec;B, 10 pA, 100 msec; C, 1.1 mV, 100 msec. In this and all other figures, error bars signify SEM.