Information about spatial view in an ensemble of primate hippocampal cells

Journal of Neurophysiology
Edmund T RollsStefano Panzeri

Abstract

Hippocampal function was analyzed by making recordings from hippocampal neurons in monkeys actively walking in the laboratory. "Spatial view" cells, which respond when the monkey looks at a part of the environment, were analyzed. To assess quantitatively the information about the spatial environment represented by these cells, we applied information theoretic techniques to their responses. The average information provided by these cells about which location the monkey was looking at was 0.32 bits, and the mean across cells of the maximum information conveyed about which location was being looked at was 1.19 bits, measured in a period of 0.5 s. There were 16 locations for this analysis, each being one-quarter of one of the walls of the room. It also was shown that the mean spontaneous rate of firing of the neurons was 0.1 spikes/s, that the mean firing rate in the center of the spatial field of the neurons was 13.2 spikes/s, and that the mean sparseness of the representation measured in a 25-ms period was 0.04 and in a 500-ms time period was 0.19. (The sparseness is approximately equivalent to the proportion of the 25- or 500-ms periods in which the neurons showed one or more spikes.) Next it was shown that the mean size of the ...Continue Reading

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Citations

Nov 24, 1999·Hippocampus·S R Schultz, E T Rolls
Feb 7, 2001·Annual Review of Psychology·E T Rolls
May 1, 2001·The International Journal of Neuroscience·P Koch, G Leisman
May 18, 2006·Reviews in the Neurosciences·Edmund T Rolls, J Z Xiang
Dec 17, 2009·Neuroscience and Behavioral Physiology·I G Sil'kis
Aug 28, 2019·Brain Structure & Function·Edmund T Rolls
Jun 27, 2020·Frontiers in Neural Circuits·Cristian MoralesNoelia V Weisstaub
Sep 22, 1999·Neural Computation·S PanzeriE T Rolls
Dec 14, 2005·Neuroscience and Behavioral Physiology·G Kh MerzhanovaV N Khokhlova
Apr 11, 2008·Journal of Neurophysiology·Guglielmo FoffaniKaren A Moxon
Dec 3, 2008·The European Journal of Neuroscience·Edmund T RollsSimon M Stringer
Sep 1, 2002·Cognitive Neuropsychology·Alessandro Treves, Ines Samengo
Mar 5, 2016·Scientific Reports·Sankaranarayani RajangamMiguel A L Nicolelis
Jul 25, 2019·Neural Computation·Encarni MarcosAldo Genovesio
Dec 13, 2006·Network : Computation in Neural Systems·Simon M Stringer, Edmund T Rolls
Mar 20, 2001·Nature Reviews. Neuroscience·M W Brown, J P Aggleton
Jul 29, 1999·Neural Computation·A RenartE T Rolls
Apr 9, 2002·Neural Computation·Inés Samengo
Jul 7, 2007·Journal of Neurophysiology·Stefano PanzeriRasmus S Petersen
Jul 13, 1999·Hippocampus·R G RobertsonS Panzeri
Oct 14, 2009·Journal of Neuropsychology·Edmund T Rolls
Dec 9, 2017·Cell and Tissue Research·Edmund T Rolls
Mar 25, 2005·Journal of Neurophysiology·Edmund T RollsLeonardo Franco
Dec 9, 2020·Entropy·Nicholas M TimmeChristopher C Lapish
Apr 17, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·I Samengo, A Treves
Jun 20, 2006·Progress in Neurobiology·Edmund T Rolls, Raymond P Kesner
Mar 24, 2010·Behavioural Brain Research·Edmund T Rolls

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