Summary of the ROI-based linear regression analysis of performance (Percent Correct) against BOLD signal amplitude, categorized by WM load (1B/2B) and group (musician/non-musician).

The values above are the slopes of the estimated regression lines and their group differences for each region. Significantly non-zero slopes/differences are highlighted in bold typeface (pp-values for the null-hypothesis (H0) of median zero (Wilcoxon signed-rank test). See text for a detailed description of the ROI definition, the regression model applied, and for an analysis of the results. Letters “L” and “R refer to the left and right hemisphere, respectively; see also Table 2.

上表所列数值为各脑区的估计回归直线斜率及其组间差异。具有统计学显著性的非零斜率或组间差异以粗体格式标注（检验基于中位数为零的原假设（H0），采用Wilcoxon符号秩检验，对应p值）。有关感兴趣区（ROI，Region of Interest）的定义、所采用的回归模型以及结果分析的详细说明，请参见正文内容。字母"L"与"R"分别指代左侧与右侧大脑半球；相关信息亦可参见表2。