Elderly participants’ mean temporal data with piecewise linear regression fittings. The graph shows AT, DT and MT data of the older participants group fitted using the piecewise model. Note that the piecewise fitting did not account for ID-AT relation, thus the simple linear fitting is shown although it was also not significant (R2 = .03). Both MT and DT increased with ID.
Sleimen-Malkoun et al. BMC Neuroscience 2013 14:145 doi:10.1186/1471-2202-14-145