Figure 3. Effects of caffeine, CPA and BAPTA on slow waves and STDs.

Aa, slow waves and STDs were recorded in the presence of nifedipine (1 μm). Ab, caffeine (1 mM) abolished slow waves but not STDs. Ba, slow waves and STDs were recorded from a separate preparation in control conditions. Bb, caffeine (10 mM) abolished both slow waves and STDs. Ca, slow waves and STDs were recorded in the presence of nifedipine (1 μm). Cb, CPA (10 μm) abolished both slow waves and STDs. Da, slow waves and STDs were recorded in the presence of nifedipine (1 μm). Db, BAPTA (50 μm) abolished both slow waves and STDs. A, C and D were recorded in one preparation; B was recorded in another. The scale bars on the right refer to all traces. RMP, resting membrane potential.