New and Improved Tetrodes for Monkeys J. S. Pezaris, M. Sahani, and R. A. Andersen Computation and Neural Systems Technical Report TR-98-03 December, 1998 Computation and Neural Systems California Institute of Technology, Pasadena, CA 91125, U.S.A. Abstract We have adapted the Recce-O'Keefe tetrode for use in monkey cortex. Our design has been in use for three years in our laboratory, and has proven capable and robust. Details on construction of tetrodes, carrier tubes, and jigs are given, including sources for materials. Example recordings show excellent isolation and histologically verified tracks are straight at up to 12 millimeters of tetrode extension. A preliminary version of this paper can be found in Computational Neuroscience: Trends in Research 1997, J. M. Bower (ed), Plenum Press, New York, 1997, pp. 937-942. Fetch high-resolution PDF of paper (12 MB gzip compressed) Fetch high-resolution postscript of paper (26 MB gzip compressed) Fetch low-resolution postscript of paper (0.6 MB gzip compressed) John Pezaris, Caltech, Mail Code 216-76, Pasadena, CA 91125, john@pezaris.com, 8 January 1999.