Fig. 6

Attenuation of caffeine-assisted oscillation by depletion of intracellular Ca²⁺ stores. Field potential recordings were performed, and electrical stimulation was delivered in the same way as shown in Fig. 3A. A Waveforms obtained by field potential recording. Stable oscillation was generated in the caffeine-containing medium (top). Application of 15 μM thapsigargin blocked the later oscillatory phase, but the initial and second waves remained (middle). After washout of baclofen, the oscillatory phase reappeared (bottom). B Averages of wavelet number before and during thapsigargin application to caffeine-containing medium, and after washout of thapsigargin. Asterisks (**P < 0.001) indicate significant statistical differences