Figure 5

Interaction effects between infarction and hand. (a,c) Two-way MANOVA was applied to the data presented in Figs. 2 and 4 to find interaction effects between infarction (Pre/Post) and the hand used (Left/Right). Time-course curves of the interaction effects in Monkeys 1 (a) and 2 (c) are shown. The F-values of ΔHbO and ΔHbR in each channel are drawn with red and blue lines, respectively. The dotted lines in each frame indicate levels of p = 0.0001. The horizontal axis indicates time from the onset of the retrieval movement (vertical dashed lines). Locations of fNIRS optodes are shown by gray circles with probe numbers (PR). The red-highlighted frames indicate sites with high interaction effects, which we selected for muscimol injection. (b,d) Changes of the interaction effect depending on the size of the food well at channels 8 (red) and 16 (gold) in Monkey 1(b) and at channel 11 in Monkey 2 (d).