Fig. 1.

Functional activation and probabilistic tractography in a control preterm infant without focal brain injury and imaged at term equivalent age. Following passive sensori-motor stimulation of the right hand, clusters of functional activity were identified in the contralateral (left) perirolandic region and supplementary motor area (z-score threshold 2.3). The afferent thalamo-cortical tract (yellow) was identified using probabilistic tractography and the fMRI cluster (orange) as a target mask. Symmetrical efferent corticospinal tracts (blue) were identified using anatomical regions of interest