Table 2.

Statistical summary for the changes in the activation levels across sessions (T1 vs. T0, T2 vs. T0 and T2 vs. T1) in specific regions of interest (ROIs) (left and right auditory cortices, left inferior parietal lobule, and left frontal/prefrontal cortex) during the auditory test. Numbers in the brackets illustrate the 95% confidence intervals (α corrected at 0.05/3) along with corresponding effect sizes. Single, double and triple asterisks indicate statistical significance where zeros are outside the 95%, 99% and 99.9% confidence intervals, respectively (in bold)

Task	ROI	Condition	Confidence interval (CI) and effect size	T1 vs. T0	T2 vs. T0	T2 vs. T1
Auditory task	Left auditory cortex	Speech	CI Effect size	[-2.846, 1.416] -0.035	[-5.848, 0.463] -0.455	[-4.919, 0.006] -0.618
		Non-speech	CI Effect size	[0.284, 3.501]* 0.708*	[-1.558, 4.231] 0.364	[-2.825, 3.000] -0.062
		Speech vs. non-speech	CI Effect size	[-4.590, 0.602] -0.490	[-7.723, -2.235]*** -0.970***	[-3.876, -0.217]* -0.682*
	Right auditory cortex	Speech	CI Effect size	[-2.421, 2.318] 0.003	[-2.844, 1.064] -0.245	[-4.992, 1.467] -0.159
		Non-speech	CI Effect size	[-1.581, 3.462] 0.202	[-1.635, 2.562] 0.124	[-3.927, 2.835] -0.073
		Speech vs. non-speech	CI Effect size	[-2.417, 1.811] -0.249	[-2.985, 1.242] -0.353	[-3.108, 2.186] -0.087
	Left inferior parietal lobule	Speech	CI Effect size	[-3.296, 2.200] -0.226	[-5.494, 1.639] -0.350	[-3.182, 1.944] -0.273
		Non-speech	CI Effect size	[-1.782, 0.407] -0.008	[-2.153, 1.631] -0.090	[-1.236, 1.591] -0.129
		Speech vs. non-speech	CI Effect size	[-2.496, 2.823] -0.274	[-4.357, 1.580] -0.387	[-3.221, 2.554] -0.144
	Left frontal/ prefrontal cortex	Speech	CI Effect size	[-4.393, -1.766]*** -1.062***	[-4.179, -1.058]*** -0.880***	[-1.969, 1.473] 0.027
		Non-speech	CI Effect size	[-1.705, 1.146] -0.056	[-1.593, 1.038] -0.158	[-2.481, 2.242] -0.124
		Speech vs. non-speech	CI Effect size	[-4.261, -0.529]** -0.904**	[-3.732, -0.370]* -0.761*	[-1.361, 1.709] 0.232