Hanuscheck et al with Johannes Vogt from the University Medical Center of the Johannes Gutenberg University in Mainz, Germany used NeuroNexus A1x16-3mm-50-177 probes to record single units and LFPs in hippocampus and prefrontal cortex of interleukin-4 (IL-4Rα) deficient mice. Their publication in the Journal of Experimental Medicine reported in vivo electrophysiology showing that theta and gamma power, as well as number of active units and individual unit firing rates are increased when neuronal IL-4Rα is low.