Radial profile of stellar velocity dispersion (σ_*) for NGC 1365 (left), NGC 1566 (center), and NGC 3627 (right), plotted as a function of galactic structure (colors) and LumW age of the underlying stellar populations. Stellar populations younger than 100 Myr are indicated by diamonds (dotted line). Stellar populations of ages in the range of 100 Myr < log LumW age < 600 Myr are marked with triangles (dashed line). Stars older than 3 Gyr are represented by squares (dashdotted line). Circles (solid line) show the radial profile considering all stellar populations. The gray line shows the radial velocity dispersion gradient measured for the molecular gas, from the PHANGS-ALMA CO(2−1) data.