Table 5. LMM statistics of learning effects on P3a.

	P3a Amplitude
Predictors	Estimates	SE	CI	t	p
Intercept	4.10	0.42	3.28–4.93	9.79	1.293e-22
Confidence	0.97	0.14	0.70–1.24	6.96	3.338e-12
Block	−0.91	0.07	−1.05 – −0.77	−12.93	3.201e-38
Sensory prediction error	2.06	0..48	1.11–3.00	4..27	1.969e-05
Reward prediction error	−0.75	0.38	−1.49 – −0..01	−1.98	4.794e-02
Error magnitude	−1..95	0..44	−2.81 – −1..09	−4.43	9.512e-06
Random effects			Model Parameters
Residuals	22.98		N	40
Intercept	6.83		Observations	9678
SPE	3.02		log-Likelihood	−28997.990
			Deviance	57995.981

Formula: P3a ~ Confidence + Block +SPE + RPE+EM + (SPE|participant).