Fig. 4: Correlations between frontoparietal T1w/T2w signal intensity ratio and training-related changes in response time.
From: Individual differences in frontoparietal plasticity in humans

a Schematic of T1 signal intensity divided by T2 signal intensity, as a proxy measure for myelination. b Task-based regions of interest (b–f) Positive relationships between baseline frontoparietal T1w/T2w signal intensity ratio and training-related changes in response times on the n-back working memory task. Axial slice is shown at z = 22. Statistical models control for age, sex, and baseline working memory response times. Asterisks denote p-values that survive FDR-correction.