(a, b) Similar domain size for excitatory and inhibitory events. (a) Example event showing FWTM of Gaussian fit of active inhibitory domain (top) and fits of FWTM for 200 randomly selected domains from individual inhibitory (I, purple) and excitatory (E, green) animals, rotated to align major axis (bottom). (b) Median domain size for each I and E animal. Circles: individual animals, lines: group median and IQR. (c) Correlation strength at 1.8–2.2 mm from seed point. Filled circles individually significant versus surrogate (p<0.01). (d, e) Correlation wavelength is similar between I and E networks. (d) (top) Correlation pattern averaged over all seed points in single animal with inhibitory GCaMP. (bottom) Correlation as function of distance. (e). Wavelength of the correlation pattern for I and E. Circles: individual animals, lines: group median and IQR. (f–g) Similar eccentricity of local correlation structure. (f) Examples for two seed points from the same inhibitory animal, numbers indicate measured eccentricity. (g) Median eccentricity for all seed points. Circles: individual animals, lines: group median and IQR. (h) Fracture strength is similar for I and E networks. (i, j) Spontaneous activity is moderately low-dimensional in both E and I networks. (i) Cumulative explained variance for principal components of spontaneous events (lines indicate individual animals). (j). Median dimensionality, calculated from event-matched (n=30 events, n=100 simulations) random subsampling of events. Circles: individual animals, lines: group median and IQR. IQR, interquartile range.