Brunetti, P. M., Wimmer, R. D., Liang, L., Siegle, J. H., Voigts, J., Wilson, M., Halassa, M. M. Design and Fabrication of Ultralight Weight, Adjustable Multi-electrode Probes for Electrophysiological Recordings in Mice. J. Vis. Exp. (91), e51675, doi:10.3791/51675 (2014).