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. 2002 Nov 1;22(21):9237–9243. doi: 10.1523/JNEUROSCI.22-21-09237.2002

Fig. 1.

Fig. 1.

PPF of presynaptic Ca2+transients at the MF–CA3 synapse. A, Representative records of presynaptic Ca2+ transients (FCa) and simultaneously recorded field EPSPs (Vfield) evoked by single (thin traces) or paired-pulse stimulation (thick traces) with an ISI of 50 msec. Traces are the average of 10 sweeps. B, The second response to the paired stimulation was extracted by subtracting that evoked by the single stimulus and superimposed with the single response for comparison. Note that the second response was considerably larger than the first one.