Table 2.

Results of the ANOVA on the two parametric regressors for precision-dependent attention α(π̂₁^(t)) and volatility μ₃^(t)

Region	Direction	Side	MNI coordinates			Voxels	Z-score
			x	y	z
Parametric regressor: precision-dependent attention α(π̂1(t))
All trials
n.s.
Main effect of validity (I vs V trials)
Precentral gyrus/FEF	I > V	R	42	4	42	314	3.9
TPJ	I > V	R	46	−46	6	214	3.75
Putamen	I > V	R	22	16	4	173	4.38
Validity × hemifield interaction
n.s.
Parametric regressor: volatility μ3(t)
All effects n.s.

n.s., Not significant; I, invalid; V, valid.