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Are neurons in cat posteromedial lateral suprasylvian visual cortex orientation sensitive? Tests with bars and gratings

Published online by Cambridge University Press:  02 June 2009

Yuri Danilov ,
Rodney J. Moore ,
Von R. King  and
Peter D. Spear
Yuri Danilov
Affiliation:
Department of Psychology and Center for Neuroscience, University of Wisconsin-Madison, Madison
Rodney J. Moore
Affiliation:
Department of Psychology and Center for Neuroscience, University of Wisconsin-Madison, Madison
Von R. King
Affiliation:
Department of Psychology and Center for Neuroscience, University of Wisconsin-Madison, Madison
Peter D. Spear
Affiliation:
Department of Psychology and Center for Neuroscience, University of Wisconsin-Madison, Madison
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Abstract

There is controversy in the literature concerning whether or not neurons in the cat's posteromedial lateral suprasylvian (PMLS) visual cortex are orientation selective. Previous studies that have tested cells with simple bar stimuli have found that few, if any, PMLS cells are orientation selective. Conversely, studies that have used repetitive stimuli such as gratings have found that most or all PMLS cells are orientation selective. It is not known whether this difference in results is due to the stimuli used or the laboratories using them. The present experiments were designed to answer this question by testing individual PMLS neurons for orientation sensitivity with both bar and grating stimuli. Using quantitative response measures, we found that most PMLS neurons respond well enough to stationary flashed stimuli to use such stimuli to test for orientation sensitivity. On the basis of these tests, we found that about 85% of the cells with well-defined receptive fields are orientation sensitive to flashed gratings, and a similar percentage are orientation sensitive to flashed bars. About 80% of the cells were orientation sensitive to both types of stimuli. The preferred orientations typically were similar for the two tests, and they were orthogonal to the preferred direction of movement. The strength of the orientation sensitivity (measured as the ratio of discharge to the preferred and nonpreferred orientations) was similar to both types of stimuli. However, the width of the orientation tuning curves was systematically broader to bars than to gratings. Several hypotheses are considered as to why previous studies using bars failed to find evidence for orientation sensitivity. In addition, a mechanism for the difference in orientation tuning to bars and gratings is suggested.

Keywords

Extrastriate cortexPMLS cortexOrientation selectivityCat
Type
Research Articles
Information
Visual Neuroscience , Volume 12 , Issue 1 , January 1995 , pp. 141 - 151
Copyright
Copyright © Cambridge University Press 1995

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References

Bando, T., Takagi, M., Toda, H. & Yoshizawa, T. (1992). Functional roles of the lateral suprasylvian cortex in ocular near response in the cat. Neuroscience Research 15, 162–178.CrossRefGoogle ScholarPubMed
Blakemore, C. & Zumbroich, T.J. (1987). Stimulus selectivity and functional organization in the lateral suprasylvian visual cortex of the cat. Journal of Physiology (London) 389, 569–603.CrossRefGoogle ScholarPubMed
Bullier, J. (1986). Axonal bifurcation in the afferents to cortical areas of the visual system. In Visual Neuroscience, ed. Pettigrew, J.D., Sanderson, K.J. & Levick, W.R., pp. 239–259. Cambridge: Cambridge University Press.Google Scholar
Camarda, R. & Rizzolatti, G. (1976). Visual receptive fields in the lateral suprasylvian area (Clare-Bishop area) of the cat. Brain Research 101, 427–443.CrossRefGoogle ScholarPubMed
Dreher, B. (1986). Thalamocortical and corticocortical interconnections in the cat visual system: Relation to the mechanisms of information processing. In Visual Neuroscience, ed. Pettigrew, J.D., Sanderson, K.J. & Levick, W.R., pp. 290–314. Cambridge: Cambridge University Press.Google Scholar
Gizzi, M.S., Katz, E., Schumer, R.A. & Movshon, J.A. (1990). Selectivity for orientation and direction of motion of single neurons in cat striate and extrastriate visual cortex. Journal of Neurophysiology 63, 1529–1543.CrossRefGoogle ScholarPubMed
Hamada, T. (1987). Neural response to the motion of textures in the lateral suprasylvian area of cats. Behavioral Brain Research 25, 175–185.CrossRefGoogle Scholar
Henry, G.H., Bishop, P.O. & Dreher, B. (1974 a). Orientation, axis and direction as stimulus parameters for striate cells. Vision Research 14, 767–777.CrossRefGoogle ScholarPubMed
Henry, G.H., Dreher, B. & Bishop, P.O. (1974 b). Orientation specificity of cells in cat striate cortex. Journal of Neurophysiology 37, 1390–1409.CrossRefGoogle ScholarPubMed
Hubel, D.H. & Wiesel, T.N. (1969). Visual area of the lateral suprasylvian gyrus (Clare-Bishop area) of the cat. Journal of Physiology (London) 202, 251–260.CrossRefGoogle ScholarPubMed
Kezeli, A.R. (1983). Receptive fields of neurons of cat suprasylvian gyrus studied by stimuli of different colors. Neurophysiology 14, 474–480.CrossRefGoogle Scholar
Merrill, E.G. & Ainsworth, A. (1972). Glass-coated platinum-plated tungsten microelectrodes. Medical and Biological Engineering 10, 662–672.CrossRefGoogle ScholarPubMed
McCall, M.A., Tong, L. & Spear, P.D. (1988). Development of neuronal responses in cat posteromedial lateral suprasylvian visual cortex. Brain Research 447, 67–78.CrossRefGoogle ScholarPubMed
Pettigrew, J.D. (1974). The effect of visual experience on the development of stimulus specificity by kitten cortical neurons. Journal of Physiology (London) 237, 49–74.CrossRefGoogle Scholar
Palmer, L.A., Rosenquist, A.C. & Tusa, R.J. (1978). The retinotopic organization of lateral suprasylvian visual areas in the cat. Journal of Comparative Neurology 177, 237–256.CrossRefGoogle ScholarPubMed
Payne, B.R. (1993). Evidence for visual cortical area homologs in cat and macaque monkey. Cerebral Cortex 3, 1–25.CrossRefGoogle ScholarPubMed
Rosenquist, A.C. (1985). Connections of visual cortical areas in the cat. In Cerebral Cortex, ed. Peters, A. & Jones, E.G., pp. 81–117. New York: Plenum Publishing Corporation.Google Scholar
Smith, D.C. & Spear, P.D. (1979). Effects of superior colliculus removal on receptive field properties of neurons in lateral suprasylvian visual area of the cat. Journal of Neurophysiology 42, 57–75.CrossRefGoogle ScholarPubMed
Spear, P.D. (1985). Neural mechanisms of compensation following neonatal visual cortex damage. In Synaptic Plasticity and Remodeling, ed. Cotman, C.W., pp. 111–167. New York: Guilford Press.Google Scholar
Spear, P.D. (1991). Functions of Extrastriate Visual Cortex in Non-Primate Species. In Vision and Visual Dysfunction, ed. Leventhal, A.G., pp. 339–370. Basingstoke, England: Macmillan Press.Google Scholar
Spear, P.D. & Baumann, T.P. (1975). Receptive-field characteristics of single neurons in lateral suprasylvian visual area of the cat. Journal of Neurophysiology 38, 1403–1420.CrossRefGoogle ScholarPubMed
Tong, L., Kalil, R.E. & Spear, P.D. (1984). Critical periods for functional and anatomical compensation in lateral suprasylvian visual area following removal of visual cortex in cats. Journal of Neurophysiology 52, 941–960.CrossRefGoogle ScholarPubMed
Wright, M.J. (1969). Visual receptive fields of cells in a cortical area remote from the striate cortex in the cat. Nature 223, 973–975.CrossRefGoogle Scholar