LTDPF monitored using whole-cell patch-clamp recordings. A, Manipulation protocols. SM, Stimulation of the molecular layer. B, Top, EPSCs recorded from a Purkinje cell in which depression was saturated after three repetitions of strong PF stimulation. This depression was partially reversed after two periods of 1 Hz stimulation. Bottom, Pooled data (n = 11). Note the long-lasting character of both the depression and potentiation.