A fascinating collaboration between Ute Hochgeschwender at Central Michigan University and Christopher Moore at Brown University is out in Nature Communications Biology. They combine simultaneous gamma band LFP recordings with NeuroNexus A1x32-Poly2-5mm-50s-177 probes and imaging for bioluminescence directly adjacent to the silicon shank in barrel cortex of luciferase-expressing mice. These recordings confirm Interluminescence: presynaptic bioluminescence activating postsynaptic opsins.