Extended Data Fig. 5: Population correlations matrices and single cell decoding accuracies.
From: Spatial maps in piriform cortex during olfactory navigation
(a) Full similarity matrix of correlation coefficients of all odour and location population vector pairs for all recorded pPCx (n = 995) and CA1 (n = 154) neurons. Off-diagonal correlation coefficients on the lower right quadrants of each matrix show that CA1 location representations are more dissimilar from each other than pPCx location representations. Off-diagonal correlation coefficients on the top right and lower left quadrants show that there were no systematic relationship population responses for individual odours and locations. (b) Population correlation coefficients for odour and locations were shown in similarity matrices. Odour: top left quadrant; location: bottom right quadrant, excluding autocorrelation coefficients (diagonal band). Wilcoxon rank-sum test, ** p < 0.01, *** p < 0.001. (c) L1 regularization pseudo-population decoding curves in Fig. 2g (black lines) were overlaid on the same x-axis for comparison. (d) Cumulative distribution function of single cell decoding accuracies for all recorded pPCx (left) and CA1 (right) neurons show that individual pPCx neurons location is significantly better coding than odour. Kolmogorov–Smirnov test, *** p < 0.001.
