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Field potential (a) and CBF (b) traces measured before and after cocaine administration (1mg/kg, i.v., at t=0min) during which forepaw stimulation was performed every 3min from −9min (baseline period) to 30min after cocaine injection. Panels (c, d) show the detailed field potential and CBF signals just before and after cocaine injection (e.g., from −4min to 3min).
