RT Journal Article SR Electronic T1 Why not record from every channel with a CMOS scanning probe? JF bioRxiv FD Cold Spring Harbor Laboratory SP 275818 DO 10.1101/275818 A1 George Dimitriadis A1 Joana P. Neto A1 Arno Aarts A1 Andrei Alexandru A1 Marco Ballini A1 Francesco Battaglia A1 Lorenza Calcaterra A1 Francois David A1 Richárd Fiáth A1 João Frazão A1 Jesse P Geerts A1 Luc J. Gentet A1 Nick Van Helleputte A1 Tobias Holzhammer A1 Chris van Hoof A1 Domonkos Horváth A1 Gonçalo Lopes A1 Carolina M. Lopez A1 Eric Maris A1 Andre Marques-Smith A1 Gergely Márton A1 Bruce L. McNaughton A1 Domokos Meszéna A1 Srinjoy Mitra A1 Silke Musa A1 Hercules Neves A1 Joana Nogueira A1 Guy A. Orban A1 Frederick Pothof A1 Jan Putzeys A1 Bogdan Raducanu A1 Patrick Ruther A1 Tim Schroeder A1 Wolf Singer A1 Paul Tiesinga A1 Istvan Ulbert A1 Shiwei Wang A1 Marleen Welkenhuysen A1 Adam R. Kampff YR 2018 UL http://biorxiv.org/content/early/2018/03/21/275818.abstract AB Neural recording devices normally require one output connection for each electrode. This constrains the number of electrodes that can be accommodated by the thin shafts of implantable probes. Sharing a single output connection between multiple electrodes relaxes this constraint and permits designs of ultra-high density neural probes.Here we report the design and in vivo validation of such a device, a complementary metal-oxide-semiconductor (CMOS) scanning probe with 1344 electrodes and 12 reference electrodes along an 8.1 mm × 100 μm × 50 μm shaft; the outcome of the European research project NeuroSeeker. This technology presented new challenges for data management and visualization, and we also report new methods addressing these challenges developed within NeuroSeeker.Scanning CMOS technology allows the fabrication of much smaller, denser electrode arrays. To help design electrode configurations for future probes, several recordings from many different brain regions were made with an ultra-dense passive probe fabricated using CMOS process. All datasets are available online.