Fig. 6: The association between Neurite Density Index (NDI) and hormone levels (specifically progesterone, estradiol, and cortisol).
From: Longitudinal investigation of neurobiological changes across pregnancy

The color-coding reflects the standardized regression coefficients obtained from linear mixed effects models, which were used to analyze the relation between NDI and each of the three hormones while covarying for age and relative motion (Eq. 4). Note. *p < .05. **p < .01. ***p < .001. An asterisk in the color bar indicates the level of significance for standardized regression coefficients.