Poster presented at CNS*98, Santa Barbara, California, July 26-30, 1998. Response Correlations in Parietal Cortex J. S. Pezaris, M. Sahani, R. A. Andersen Computation and Neural Systems Sloan Center for Theoretical Neurobiology California Institute of Technology, Pasadena, CA 91125, U.S.A. Abstract Action potentials from groups of two to five physically adjacent neurons were recorded from the parietal cortex of two rhesus macaques performing the memory saccade task. Recordings were make using tetrodes and sorted into spike trains from individual cells. Neurons recorded at the same site display quite different temporal response (firing rate) profiles, despite having similar spatial response fields. To study the structure of local circuitry, the set of temporal profiles elicited by stimuli in the preferred direction of the cells was clustered. The resulting data-defined identification then allowed the examination of the relationship between membership in these classes and spike time coordination between pairs of neurons. In addition, sliding-window autocorrelations and cross correlations computed over both trial time and target position are presented. Fetch postscript of poster (822 kB gzip compressed) Fetch postscript of proceedings preprint (263 kB gzip compressed) John Pezaris, Caltech, Mail Code 216-76, Pasadena, CA 91125, john [at] pezaris [dot] com, 4 August 1998.