Figure 7

(a) Boxplots of the time required for food retrieval of 75 trials at each session. Left and right frames represent session series using food well sizes of 20 and 10 mm, respectively, each starting with a well size of 11 mm. In each session, plots of trials with left and right hands were colored with green and blue, respectively. The marks * and ** indicate statistical significance of p < 0.05 and p < 0.01, respectively. (b) Correlation between hemodynamic responses and the time required for food retrieval. Left panel, maximum amplitudes in hemodynamic response versus time required for food retrieval; right panel, time of maximum amplitude in hemodynamic response versus time required for food retrievals. Closed red circles indicate ΔHbO in the left hemisphere; closed blue circles indicate ΔHbR in the left hemisphere; open red circles indicate ΔHbO in the right hemisphere; and open blue circles indicate ΔHbR in the right hemisphere.