Striate cortex responses to periodic patterns with and without the fundamental harmonics

1. The visual system has been modelled as a set of independent linear channels each tuned to a limited band of spatial frequency with the average bandwidth being approximately 1 octave. A great deal of psychophysical and physiological evidence supports this basic notion. However, Henning, Hertz & Broadbent (1975) have shown reciprocal masking between a fundamental frequency (1F) and a complex grating composed of higher harmonics several octaves removed ((4+5+6)F); their results clearly indicate a lack of independence.

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

[2]  D. Hubel,et al.  Receptive fields and functional architecture of monkey striate cortex , 1968, The Journal of physiology.

[3]  J. Robson,et al.  Application of fourier analysis to the visibility of gratings , 1968, The Journal of physiology.

[4]  C Blakemore,et al.  On the existence of neurones in the human visual system selectively sensitive to the orientation and size of retinal images , 1969, The Journal of physiology.

[5]  G. F. Cooper,et al.  The spatial selectivity of the visual cells of the cat , 1969, The Journal of physiology.

[6]  P. O. Bishop,et al.  Spatial vision. , 1971, Annual review of psychology.

[7]  J. Robson,et al.  The appearance of gratings with and without the fundamental Fourier component. , 1971, Journal of Physiology.

[8]  D. Tolhurst.  Adaptation to square‐wave gratings: inhibition between spatial frequency channels in the human visual system , 1972, The Journal of physiology.

[9]  A Vassilev,et al.  Adaptation to square-wave gratings: in search of the elusive third harmonic. , 1973, Vision research.

[10]  L. Maffei,et al.  The visual cortex as a spatial frequency analyser. , 1973, Vision research.

[11]  D. Broadbent,et al.  Some experiments bearing on the hypothesis that the visual system analyses spatial patterns in independent bands of spatial frequency , 1975, Vision Research.

[12]  P. Schiller,et al.  Quantitative studies of single-cell properties in monkey striate cortex. III. Spatial frequency. , 1976, Journal of neurophysiology.

[13]  D. H. Kelly.  Pattern detection and the two-dimensional Fourier transform: Flickering checkerboards and chromatic mechanisms , 1976, Vision Research.

[14]  Visual cortical cells as spatial frequency analysers [proceedings]. , 1977, The Journal of physiology.

[15]  K. D. De Valois,et al.  Spatial frequency adaptation can enhance contrast sensitivity. , 1977, Vision research.

[16]  D. Tolhurst,et al.  Interactions between spatial frequency channels , 1978, Vision Research.

[17]  D. G. Albrecht,et al.  Cortical cells ; Bar and edge detectors, or spatial frequency filters , 1978 .

[18]  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.

[19]  J. Movshon,et al.  Spatial summation in the receptive fields of simple cells in the cat's striate cortex. , 1978, The Journal of physiology.

[20]  J. Movshon,et al.  Receptive field organization of complex cells in the cat's striate cortex. , 1978, The Journal of physiology.

[21]  Janette Atkinson,et al.  Channels in Vision: Basic Aspects , 1978 .

[22]  G. Sandini,et al.  Responses of visual cortical cells to periodic and non‐periodic stimuli. , 1979, The Journal of physiology.

[23]  E. Yund,et al.  Responses of striate cortex cells to grating and checkerboard patterns. , 1979, The Journal of physiology.

[24]  D. G. Albrecht,et al.  Visual cortical neurons: are bars or gratings the optimal stimuli? , 1980, Science.

[25]  J. Voke,et al.  The visual cortex. , 1983, Nursing mirror.