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. 2010 Mar 24;103(5):2821–2832. doi: 10.1152/jn.00491.2009

Fig. 4.

Fig. 4.

Population responses of cervical spinal interneurons to corticospinal and reticulospinal tract activation. A: pie chart illustrating number of neurons across the total sampled receiving convergent excitatory input from PT and MLF stimulation (▨), PT input only (Inline graphic), MLF input only (■), or which showed no response to either pathway (☐). Cells were categorized as responding to a stimulus if they showed significant rate increases to either a single stimulus or to trains of three stimuli. B–E: mean normalized responses to corticospinal and reticulospinal tract activation across the complete population of recorded spinal interneurons. Plotting conventions as Fig. 2. Ordinates for both PSTH and CUSUMs are averaged counts per bin per stimulus. Panels represent single PT stimulus (B), 3× PT stimuli (C), single MLF stimulus (D), 3× MLF stimuli (E).