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. 2021 Aug 9;16(8):e0255996. doi: 10.1371/journal.pone.0255996

Fig 3. Recordings of spontaneous cortical electrical activity (ECoG; two upper traces in each panel) and slow potential change (P; two lower traces) during spreading depression in rats.

Fig 3

Spreading depression was elicited by applying a cotton ball (1–2 mm diameter) soaked in 2% KCl solution for 1 min, on the frontal cortex. Vertical calibration bars equal 1 mV for the ECoG- and 10 mV for the P-recordings.