Hybrid dedicated and distributed coding in PMd/M1 provides separation and interaction of bilateral arm signals
Fig 4
An increasing number of arm-dedicated units emerge with each task phase.
(A) Cumulative distribution of single-unit modulation during each phase, arm. Left panel PMd, right panel M1. Large values cut off by plot: monkey O Contra Move [134(PMd), 133(PMd), 104(PMd)], Ipsi Move [234(M1), 181(M1), 130(M1)]; monkey W Contra Move [125(M1)]. Monkey O main, monkey W inset. (B) Distributions of arm preferences during each phase. Negative values are ipsi-preferring (grey background), positive values are contra-preferring (white background). Solid black vertical lines indicate the mean of each distribution, and dashed lines mark the upper quartile.