Period spacing pattern in the inertial frame for g modes {k = 0, m = 1} computed using the standard TAR (red line) and the magnetic TAR (blue line) with the 1.6 M_⊙γ Dor model at ZAMS. Bottom panel: the differences with respect to the standard TAR period spacing pattern. The vertical green bar represents an average error of measured period spacings for a sample of 40 γ Dor stars (Van Reeth et al. 2015).