Table 5. Outcome of the regression analyses.

			Trial type
		High-probability cue	Low-probability cue	Difference (high − low)
Striosome model	Regression coefficient	0.069 ***	0.057	0.074 **
	R-squared	0.180	0.029	0.095
Matrix model	Regression coefficient	0.042 *	0.016	0.056
	R-squared	0.081	0.003	0.053
Combined model	Regression coefficient	0.056 ***	0.037	0.065 **
	R-squared	0.118	0.014	0.072
	Residual for striosomes (mean ± SEM)	0.053 ± 0.021 ***	0.031 ± 0.021 ***	0.022 ± 0.023 ***
	Residual for matrix (mean ± SEM)	−0.053 ± 0.021 ***	−0.031 ± 0.018 ***	−0.022 ± 0.024 ***

*p<0.05, **p<0.01, ***p<0.001.