Table 1.

Model comparison

Model	Parameter	Log-likelihood	p (>χ2)
Null	Fixed: mean, Random: subj ID	57.55	—
State	Fixed: state, Random: subj ID	63.33	<0.001
Stimulus	Fixed: stimulus, Random: subj ID	65.39	<0.001
State:Stimulus	Fixed: state × stimulus, Random: subj ID	76.39	<0.001