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Excerpt of data for phase-locked loop (PLL) pulse delivery for ON and OFF intervals. The PLL continuously models phase (gray-dotted line) to target the upstate of the slow wave. The acoustic stimulation is delivered in blocks of five pulses ∼1.2 s apart (red dots, ON Interval) followed by an off period of ∼6 s (OFF Interval). PLL, Phase-locked loop; SW, slow wave.
