While cortical-depth-dependent fMRI studies are becoming increasingly common, these studies often focus on comparing average responses at different depths. Here we aimed, instead, to explore the integrity of a spatial response pattern across depth. For this, we analysed sub-millimeter fingertip mapping data from human somatosensory cortex. Data were acquired using fMRI at 7T and was comprised of two sets of somatotopic maps (bottom-up or top-down driven). Both sets of somatotopic maps were found to vary across depth and were marked by a banded pattern at superficial layers; however, this pattern dissipated in deeper layers – being dominated by noise.
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