Figure 2.

A, Drawing of MR-compatible device that was used in the scanner to passively move the subject's arm. Subjects held the cone-shaped handle of the device (shown to the right), while the experimenter moved the handle located at the left end toward the subject and back in a randomly selected direction in the horizontal plane. B, A hierarchical model of perceptual processing in the sensorimotor network. The sequence shown is constructed based upon propagation delays through the sensorimotor network during a somatosensory perceptual decision-making task (Romo and de Lafuente, 2013). In partial correlation analysis, the correlation between a given area and the rest of the brain is calculated by removing the activity of all preceding areas in the perceptual hierarchy. C, Processing pipeline showing different computational steps in dynamic ICA analysis of resting-state data.