A1x16-5mm-100-177-CM16LP probes from NeuroNexus spanned layers II/III to V/VI of the barrel field in rat somatosensory cortex (S1BF) to allow layer-specific analyses including CSD. Xunda Wang et al. with Ed X. Wu’s lab at the University of Hong Kong optogenetically-induced spindle activities from ventral posteromedial thalamus (VPM) and used fMRI together with electrophysiology to precisely probe and characterize the temporal and spatial properties of the spindle activities throughout the brain.