Table 1.

Mean and standard deviation of β and log(c) in all 875 ROIs, estimated assuming spherical or elliptical symmetry of the periodogram. The mean difference is shown along with 95% confidence intervals.

	Spherical symmetry		Elliptical symmetry		Mean difference
	mean	std	mean	std	(ell-sph)
β	−2.80	0.35	−2.70	0.39	−0.096a [−0.088,−0.104]
log(c)	2.55	0.35	2.75	0.39	−0.192a [−0.18, −0.200]

^ap < 0.001.