Extended Data Fig. 10: Subspace analysis of cPCs and relationship with hand-control manifold.
From: Active dissociation of intracortical spiking and high gamma activity
a, Subspace angles between the top ten cPCs (sorted by variance accounted for) of SP+ data and HG+ data. Leading subspace angles were significantly different from chance (p = 3.2 × 10−5; one-sided quantile test on mean difference curve, Methods). Grey lines and shaded areas indicate subspace angles calculated using shuffled subspaces. Solid line: mean; Shaded area: s.d. Each of the 9 dots represents a monkey–CE combination. b,c, Mean ± s.d. VAF when hand-control data were projected into the subspaces defined by the top ten b, HG+ cPCs computed with ONF data (grey, n = 9 monkey–CE combinations) or hand-control data (brown, n = 9 monkey–CE combinations), and c, SP+ cPCs computed with ONF data (grey, n = 9) or hand-control data (brown, n = 9). Each dot represents one monkey–CE combination.
