Time series of the loop displacements extracted by a Gaussian fitting from the TD map at 171 Å of Fig. 5. The original time series are shown on the left. The dashed lines trace the loop boundaries and are estimated from the σ of the Gaussian fitting. The overall series are fitted with one or more low-degree polynomial functions (i.e. linear, quadratic, etc.) in order to determine their global trend, which has been removed in the right plots. A blue error bar in the right column of plots is shown in order to compare the amplitude of oscillations with the AIA spatial resolution (~0.4 Mm).