MI activity for full and partial task conditions: A, B) histograms for a single neuron during (A) do task (black) compared to full view task (gray) (B) viewing only hand actions termed view device (black), or viewing only the screen, termed view screen (gray). View activity is markedly reduced and highly variable when only subcomponents of the task are present. The circular plots are the same format as Fig. 1. PD for each condition, marked with thick line: (A) do, sPD(do)=54°±7°; full view, sPD(view)=64°±8° (B); view device, PD(view device)=356°±9°; view screen PD(view screen)=49°±9°; (C) Number of tuned cells; (D) mean firing rate in full and partial task conditions1.
1 * =a significant difference in the firing rate during ‘do’ from that during the other three conditions, as well as view from do, view screen, view device (KW test, p<0.05).