Figure 2

Cross-validated duration tuning across multiple brain areas. In the top row example of volumetric masks in a single subject. The mask is overlaid on the subject’s native space. For each ROI (i.e., each column of the figure) and each duration selective cluster (i.e., the colored line in the subplot), the group average normalized BOLD responses (y-axis) for the different presented S1 durations (x-axis) is shown. The BOLD signal in the duration selective clusters is aligned to the presentation timings of the different S1 durations (i.e., 2nd volume after S1 offset). The filled symbols represent the point in time where the hemodynamic response of duration selective clusters matched the presentation timing of the appropriate duration (e.g., red-labeled voxels when the shortest S1 duration is presented). Normalization was performed first in each individual subject to the mean signal intensity across 9 fMRI runs and then for each duration selective cluster to the signal associated to the preferred duration. The colored lines are averaged BOLD responses across subjects and iterations. The grey area is the BOLD distribution across iterations (averaged across subjects and runs); black bars are standard errors. Legend: CRB cerebellum, V1 primary visual cortex 1, IPS intraparietal sulcus, SMA supplementary motor area, IFG inferior frontal gyrus.