Fig. 3.

Relative timing of the onset and offset of cell activity in area 4δc. A) The phase of the onset of cell activity in the ipsilateral lead condition is plotted as a function of the phase of onset in the contralateral lead condition for those cells that showed task-related activity in both conditions. Blue symbols indicate limb-dependent cells; red symbols indicate limb-independent cells. Solid diagonal line indicates the line of equivalence; dotted lines delimit cells in which the onset of the modification in activity occurred 0.4 step cycles earlier or later in the ipsilateral than the contralateral lead condition. B) Similar plot for the phase of offset of activity. In all cases, phases are calculated with respect to the onset of the period of activity in the coClB/Br. “2G” indicates the cell illustrated in Fig. 2G. “5A,B” indicates the cells illustrated in Fig. 5A and B. Values in parentheses indicate steps.