Table 3.

Linear mixed–effects models results for HbR: HbR~Condition+Hemisphere+(1|Participant).

ROI	Predictors	Estimates	Confidence interval	p	ICC	Nsubj	Observations	Marginal R2 / Conditional R2
PFC	(Intercept)	−0.005865	−0.030568–0.018839	0.641	0.15	20	843	0.020 / 0.163
	Segment [Prep]	0.009288	−0.008636–0.027212	0.309
	Segment [Stdy]	−0.023347	−0.041271−0.005422	0.011*
	Hemisphere [ipsi]	0.019295	0.004509–0.034082	0.011*
PMC	(Intercept)	0.012104	−0.018544–0.042753	0.438	0.09	20	705	0.029 / 0.120
	Segment [Prep]	−0.034157	−0.061640−0.006675	0.015
	Segment [Stdy]	−0.066126	−0.093608−0.038643	<0.001*
	Hemisphere [ipsi]	−0.012357	−0.035100–0.010386	0.286
SMC	(Intercept)	−0.006921	−0.035947–0.022106	0.640	0.09	20	465	0.023 / 0.113
	Segment [Prep]	−0.016582	−0.045085–0.011922	0.254
	Segment [Stdy]	−0.045554	−0.074057−0.017051	0.002*
	Hemisphere [ipsi]	0.016181	−0.007689–0.040051	0.183
PPC	(Intercept)	−0.009275	−0.055350–0.036800	0.693	0.17	19	507	0.026 / 0.190
	Segment [Prep]	−0.041710	−0.078337−0.005084	0.026
	Segment [Stdy]	−0.074196	−0.110822−0.037569	<0.001*
	Hemisphere [ipsi]	−0.004291	−0.034464–0.025882	0.780

Predictors indicate the fixed effects levels within the variables in the model. Reference levels were Stand for Condition and the contralesional hemisphere for Hemisphere. Estimates indicate the adjusted difference between the reference level and the predictor level. Bolded p–values indicate significant differences using an alpha of 0.05.

^*Indicates significant differences with p ≤ 0.0125 (0.05 /4: Bonferroni correction for four models). Estimates and confidence intervals are described in μmol. PFC, pre-frontal cortex; PMC, premotor cortex; SMC, sensorimotor cortex; PPC, posterior parietal cortex.