Figure 2: Quadratic correlation between ALFF and age in the mPFC.
From: Atypical developmental trajectory of local spontaneous brain activity in autism spectrum disorder

In the TC group, ALFF in the mPFC changed as a quadratic function of age (p = 0.036). In individuals with ASD, ALFF in the mPFC didn’t change as a second-order function of age (p = 0.311). ASD: autism spectrum disorder; TC: typical controls.