Fig. 6

a Regression plot displaying choroid plexus volume against participants’ age for each MRI modality in adult controls. McFadden’s R² values are reported for each regression model. b Case examples for younger, middle, and older-aged controls showing an increase in choroid plexus volume with age. Results show consistently across MRI types that choroid plexus volume increases with age across the adult lifespan. 3D renderings are shown from the T₂-weighted segmentations to provide further support of this finding. (FLAIR: FLuid-Attenuated-Inversion-Recovery)