Research Paper Volume 12, Issue 5 pp 4617—4640

Alterations of hand sensorimotor function and cortical motor representations over the adult lifespan

Figure 2. Best regression fits for cortical motor map parameters area (AREA), volume (VOL), and maximal motor evoked potential (MAXMEP) of first dorsal interosseus (FDI) and abductor digiti minimi (ADM) muscle. Estimates of significant regression models are stated in a rectangle below the plot and the regression is indicated in the plot by a solid line. For non-significant relationships, the best fit, on which the R²adjusted and p-value are based, is stated; a dashed line represents a non-significant regression. Ribbons depict the 95% confidence interval of the fit. Significant p-values are indicated with asterisks (*** p < 0.001; ** p < 0.01; * p < 0.05) and printed in bold.