Figure 1
From: Effective connectivity in a duration selective cortico-cerebellar network
Stimulus sequence, behavioral results, and fMRI group results. (a) Schematic representation of the stimulus sequence. In each trial a standard (S1) and a comparison duration (S2) were presented. S1 could be one of four different durations (0.2, 0.4, 0.6, and 1 s) while S2 was either shorter or longer by a Weber fraction of 0.5. Stimuli were sinusoidal Gabor patches varying in orientation. Orientation changes were task irrelevant. Participants were asked, by pressing one of two response keys, to judge whether the duration of S2 was shorter or longer than S1. Inter-stimulus interval (ISI) and inter-trial interval (ITI) varied from 4 to 5.2 s with steps of 0.08 s. Response (RES) period was hold fixed at 2 s. (b) Group average (N = 11) of percentage of accuracy plotted separately for each of the four durations and as a mean of them (grey rightmost bar). The grey dots represent the different subjects. Error bars are standard errors. (c) Activations correlated with the offset of the four different S1 durations (p < 0.05, FWE cluster level corrected for multiple comparisons across the whole brain). The significant clusters are overlaid on a structural image normalized to the common DARTEL space (see Supplementary Table 1 for more details).
