Fig. 2
Heading and choice partial correlations. Partial correlations were calculated between neuronal firing rates and stimulus headings (given the actual choices made by the monkey) or choices (given the stimulus headings). Only cells that showed a significant main effect of heading or choice were included (p < 0.05, two-way ANOVA). a Partial correlations are presented as scatterplots for VIP (left) and MSTd (right). Red and blue symbols represent the data from the visual and vestibular conditions, respectively, and circle and triangle symbols represent the new and old data sets, respectively. Arrows indicate the data points corresponding to the VIP tuning curves presented in Fig. 1 (letters A–F for the respective Fig. 1 subplots). b The proportion of neurons (same data as in a) with significant partial correlations for choice-only, heading-only or both heading and choice. In VIP, neurons with significant choice partial correlations are prevalent; while MSTd shows a greater proportion of significant heading partial correlations. In b, the new and old data were pooled for each brain area (results were similar for each data set individually). For VIP new (old) data, N = 140 (50) and 95 (58) for visual and vestibular conditions, respectively. For the MSTd new (old) data, N = 80 (217) and 25 (97) for visual and vestibular conditions, respectively. See also Supplementary Fig. 1 for a simulation and Supplementary Figs. 2–4 for further analyses of these data
