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. 2007 Nov 28;27(48):13192–13204. doi: 10.1523/JNEUROSCI.1279-07.2007

Figure 1.

Figure 1.

DA depolarizes motoneurons and interneurons projecting into the VLF. A, Neurograms show reflex responses evoked in the left L5 ventral root (VR) after a single stimulus to the left L5 dorsal root (DR) before and after bath application of blockers of fast glutamatergic and inhibitory transmission (see Materials and Methods). B, Schematic illustrates the recording arrangement. C, Neurogram recordings from ventral roots or white matter (VLF, L2, L5, and S1) indicate that DA can depolarize populations of motoneurons and interneurons. Neurogram recording from the ventral funiculus shows that DA depolarizes interneurons that project into this tract. Recordings were obtained in DC mode and low-pass filtered to isolate slow potentials. L, Left; R, right.

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