PMID: 3750869Jan 1, 1986Paper

Visuomotor fields of the superior colliculus: a quantitative model

Vision Research
F P OttesJ J Eggermont

Abstract

Electrophysiological and electrical stimulation studies in the monkey have disclosed that both the retinal surface and the metrics of saccades are topographically represented in the superior colliculus. This mapping of sensory and motor space onto the colliculus is nonhomogeneous in that the central region is over-represented in both the visual and the motor map. Single unit studies have revealed that visual receptive fields of collicular neurons are typically quite large and are characterized by a skewed (asymmetrical) sensitivity profile. Analyses by McIlwain [J. Neurophysiol. 38, 219-230 (1975)] in the cat have suggested that this skewness property reflects mainly the spatial distortion inherent in the afferent mapping. In this paper we describe a quantitative model, based on a logarithmic mapping function combined with a Gaussian connectivity function in the colliculus, which can account for the extent and the shape of collicular receptive fields. Collicular neurons in the deeper layers have movement-related bursts of activity for saccades in a limited amplitude and direction range related to their location in the collicular map. These movement fields, like visual receptive fields, may be quite extensive and typically have ...Continue Reading

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Citations

Jan 1, 1994·Biological cybernetics·L L Massone
Jan 1, 1987·Experimental Brain Research·F P OttesJ J Eggermont
Sep 28, 2004·Experimental Brain Research·Doug P HanesRobert H Wurtz
Apr 29, 2010·Experimental Brain Research·Gerd SchmitzMilena Ilieva
Feb 1, 2011·Experimental Brain Research·Otmar Bock, Gerd Schmitz
Dec 21, 2012·Experimental Brain Research·Jayalakshmi Viswanathan, Jason J S Barton
Aug 11, 2007·Biological cybernetics·Nicolas TabareauBenoît Girard
Feb 13, 2009·Biological cybernetics·Francis ColasBenoît Girard
Jan 1, 1989·Vision Research·A J van Opstal, J A van Gisbergen
Jun 1, 1993·Vision Research·K P KrommenhoekJ A van Gisbergen
May 1, 1987·Neuroscience·J A Van GisbergenA A Tax
May 14, 1998·Neuroscience and Biobehavioral Reviews·J J Eggermont
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Jul 17, 1998·Brain Research Bulletin·M A Frens, A J Van Opstal
Dec 16, 2003·Neural Networks : the Official Journal of the International Neural Network Society·Xiaoxing WangMarwan Jabri
Mar 29, 2003·Neural Networks : the Official Journal of the International Neural Network Society·Philippe LefèvreLance M. Optican
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Jan 1, 1991·Visual Neuroscience·J T McIlwain
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Mar 27, 2009·Journal of Neurophysiology·Rebecca A BermanRobert H Wurtz
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Jun 17, 2011·Journal of Neurophysiology·Husam A Katnani, Neeraj J Gandhi
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Feb 29, 2008·Journal of Neurophysiology·Mark M G WaltonNeeraj J Gandhi
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Feb 12, 2010·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Byounghoon Kim, Michele A Basso
May 7, 2010·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Rebecca A Berman, Robert H Wurtz
Mar 26, 2014·Experimental Brain Research·Andrew J AndersonR H S Carpenter
Feb 18, 2010·Biological cybernetics·Martijn MeeterJan Theeuwes
May 21, 2008·Biological cybernetics·A J van Opstal, H H L M Goossens
Apr 5, 2011·Annual Review of Neuroscience·Neeraj J Gandhi, Husam A Katnani

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