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NMDA-induced bursting in a motoneuron recorded intracellularly. Intracellular recording was from a mouse motoneuron. Bath perfusion of NMDA was started at the point indicated by the top arrow and lasted for the whole duration of the recording. The cell depolarized and then burst repeatedly for a minute followed by tonic firing. The rightmost part of the trace was obtained with a hyperpolarizing bias current of −1.4 nA, and the cell produced repeated short bursts of firing.
