Responses of cat striate neurons to moving light and dark bars: changes with eccentricity.

Responses of area-17 neurons to light and dark bars moving over a wide range of speeds were measured over a range of receptive-field locations in anesthetized and paralyzed cats. For both light bars and dark bars, velocity sensitivity shifted to higher speeds with increasing eccentricity, whereas response strength and direction selectivity hardly changed. The good correlation between response strength and velocity sensitivity for light and dark bars suggests that ON and OFF inputs converge upon most area-17 cells. The correlation between direction selectivities for light and dark bars was not better than that between velocity sensitivities for light and dark bars. Only cells with strong direction selectivity were equally direction selective for light bars and dark bars. Comparison with previous studies done with high-contrast stimuli shows that the shift in sensitivity to higher speeds with increasing eccentricity is contrast dependent.

[1]  D. Whitteridge,et al.  The representation of the visual field on the cerebral cortex in monkeys , 1961, The Journal of physiology.

[2]  D. Hubel,et al.  Receptive fields, binocular interaction and functional architecture in the cat's visual cortex , 1962, The Journal of physiology.

[3]  P. O. Bishop,et al.  Some quantitative aspects of the cat's eye: axis and plane of reference, visual field co‐ordinates and optics , 1962, The Journal of physiology.

[4]  P. O. Bishop,et al.  Responses to visual contours: spatio‐temporal aspects of excitation in the receptive fields of simple striate neurones , 1971, The Journal of physiology.

[5]  B. Dreher,et al.  Receptive field analysis: responses to moving visual contours by single lateral geniculate neurones in the cat , 1973, The Journal of physiology.

[6]  D. Hubel,et al.  Uniformity of monkey striate cortex: A parallel relationship between field size, scatter, and magnification factor , 1974, The Journal of comparative neurology.

[7]  P. Schiller,et al.  Quantitative studies of single-cell properties in monkey striate cortex. II. Orientation specificity and ocular dominance. , 1976, Journal of neurophysiology.

[8]  S. Sherman,et al.  Receptive-field characteristics of neurons in cat striate cortex: Changes with visual field eccentricity. , 1976, Journal of neurophysiology.

[9]  R. C. Emerson,et al.  Simple striate neurons in the cat. II. Mechanisms underlying directional asymmetry and directional selectivity. , 1977, Journal of neurophysiology.

[10]  A. Sillito.  Inhibitory processes underlying the directional specificity of simple, complex and hypercomplex cells in the cat's visual cortex , 1977, The Journal of physiology.

[11]  G. Henry.  Receptive field classes of cells in the striate cortex of the cat , 1977, Brain Research.

[12]  Jan J. Koenderink,et al.  Perimetry of contrast detection thresholds of moving spatial sine wave patterns. II. The far peripheral visual field (eccentricity 0°–50°) , 1978 .

[13]  J. Movshon,et al.  Spatial and temporal contrast sensitivity of neurones in areas 17 and 18 of the cat's visual cortex. , 1978, The Journal of physiology.

[14]  P. O. Bishop,et al.  Hypercomplex and simple/complex cell classifications in cat striate cortex. , 1978, Journal of neurophysiology.

[15]  K. Albus,et al.  The detection of movement direction and effects of contrast reversal in the cat's striate cortex , 1980, Vision Research.

[16]  G. Orban,et al.  Response to movement of neurons in areas 17 and 18 of the cat: velocity sensitivity. , 1981, Journal of neurophysiology.

[17]  G. Orban,et al.  The influence of eccentricity on receptive field types and orientation selectivity in areas 17 and 18 of the cat , 1981, Brain Research.

[18]  G. Orban,et al.  Response to movement of neurons in areas 17 and 18 of the cat: direction selectivity. , 1981, Journal of neurophysiology.

[19]  J Bullier,et al.  Receptive-field transformations between LGN neurons and S-cells of cat-striate cortex. , 1982, Journal of neurophysiology.

[20]  G. Orban,et al.  Receptive field structure of area 19 as compared to area 17 of the cat , 1982, Brain Research.

[21]  J. Duysens,et al.  Functional properties of area 19 as compared to area 17 of the cat , 1982, Brain Research.

[22]  P. Sterling.  Microcircuitry of the cat retina. , 1983, Annual review of neuroscience.

[23]  D C Van Essen,et al.  Functional properties of neurons in middle temporal visual area of the macaque monkey. I. Selectivity for stimulus direction, speed, and orientation. , 1983, Journal of neurophysiology.

[24]  P. Heggelund.  Direction asymmetry by moving stimuli and static receptive field plots for simple cells in cat striate cortex , 1984, Vision Research.

[25]  H Sherk,et al.  Receptive field properties in the cat's area 17 in the absence of on- center geniculate input , 1984, The Journal of neuroscience : the official journal of the Society for Neuroscience.

[26]  G A Orban,et al.  Velocity discrimination in central and peripheral visual field. , 1985, Journal of the Optical Society of America. A, Optics and image science.

[27]  G. Orban,et al.  Velocity selectivity in the cat visual system. I. Responses of LGN cells to moving bar stimuli: a comparison with cortical areas 17 and 18. , 1985, Journal of neurophysiology.

[28]  S Yamane,et al.  Simple and B-cells in cat striate cortex. Complementarity of responses to moving light and dark bars. , 1985, Journal of neurophysiology.

[29]  G. Orban,et al.  Velocity selectivity in the cat visual system. III. Contribution of temporal factors. , 1985, Journal of neurophysiology.

[30]  G. Orban,et al.  Velocity selectivity in the cat visual system. II. Independence from interactions between different loci. , 1985, Journal of neurophysiology.

[31]  D. Burr,et al.  Spatial and temporal properties of neurons of the lateral suprasylvian cortex of the cat. , 1986, Journal of neurophysiology.

[32]  John H. R. Maunsell,et al.  Functions of the ON and OFF channels of the visual system , 1986, Nature.

[33]  R Vogels,et al.  Human orientation discrimination: changes with eccentricity in normal and amblyopic vision. , 1986, Investigative ophthalmology & visual science.

[34]  G. Orban,et al.  Velocity sensitivity and direction selectivity of neurons in areas V1 and V2 of the monkey: influence of eccentricity. , 1986, Journal of neurophysiology.