Table 2.

This table provides the parameter values used for simulations (and prior densities used for subsequent dynamic causal modelling). The left column describes the parameters (corresponding to the equations in Fig. 2). The second column provides the values used to produce the spectra shown in Fig. 3, Fig. 4. The final two columns provide the prior mean and variance for dynamic causal modelling. Note that the variance is not the prior variance of the value per se but of its log scaling.

Description of parameter	Parameter value used for simulations	Prior mean	Prior variance of log scaling
Intrinsic connections dij (Hz)	$\left[\frac{4}{5},\dots ,\frac{1}{5}\right]\cdot 1000$	$\left[\frac{4}{5},\dots ,\frac{1}{5}\right]\cdot 1000$	$\frac{1}{8}$
Extrinsic connections (Hz)	exp(2) ⋅ 200	200	$\frac{1}{8}$
Rate constants κi (Hz)	$\left[\frac{1}{2},\frac{1}{2},\frac{1}{16},\frac{1}{28}\right]\cdot 1000$	$\left[\frac{1}{2},\frac{1}{2},\frac{1}{16},\frac{1}{28}\right]\cdot 1000$	$\frac{1}{16}$
Slope of sigmoid γ	$exp\left(\frac{1}{8}\right)\cdot \frac{2}{3}$	$\frac{2}{3}$	$\frac{1}{32}$
Intrinsic delays τ (ms)	1	1	$\frac{1}{32}$
Extrinsic delays τ (ms)	4	8	$\frac{1}{32}$
Amplitude of fluctuations	exp(− 2)	1	$\frac{1}{128}$
Exponent of fluctuations	1	1	$\frac{1}{128}$
Amplitude of noise	exp(− 8)	1	$\frac{1}{128}$
Exponent of noise	1	1	$\frac{1}{128}$