Non-linearities of temporal summation in neurones in area 17 of the cat

SummarySinusoidal temporal modulation of the contrast of sinusoidal gratings has been used to provide one description of the temporal properties of neurones in area 17 of the cat's visual cortex. Concurrently, the waveforms of the neurones' responses to 2 s flashes of identical gratings were examined. In most neurones, the response to the long flash was much more transient than would be expected from the shape of the temporal-frequency tuning curve. Temporal summation in cortical neurones is non-linear.

[1]  Proceedings: The use of a digital computer in the study of neuronal properties in the visual system. , 1976, The Journal of physiology.

[2]  W. Levick,et al.  Sustained and transient neurones in the cat's retina and lateral geniculate nucleus , 1971, The Journal of physiology.

[3]  J. Movshon,et al.  Spatial and temporal contrast sensitivity of striate cortical neurones , 1975, Nature.

[4]  C. Enroth-Cugell,et al.  The contrast sensitivity of retinal ganglion cells of the cat , 1966, The Journal of physiology.

[5]  D. Baylor,et al.  Synaptic drive and impulse generation in ganglion cells of turtle retina. , 1979, The Journal of physiology.

[6]  M. Wright,et al.  Spatial and temporal properties of ‘sustained’ and ‘transient’ neurones in area 17 of the cat's visual cortex , 1975, Experimental Brain Research.

[7]  Robert Shapley,et al.  Spatial properties of X and Y cells in the lateral geniculate nucleus of the cat and conduction velocities of their inputs , 1979, Experimental Brain Research.

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

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

[10]  W. Levick,et al.  Brisk and sluggish concentrically organized ganglion cells in the cat's retina , 1974, The Journal of physiology.

[11]  R. Shapley,et al.  The effect of contrast on the transfer properties of cat retinal ganglion cells. , 1978, The Journal of physiology.

[12]  A. Ainsworth,et al.  Glass-coated platinum-plated tungsten microelectrodes , 1972, Medical and biological engineering.

[13]  M. Wright,et al.  Sensitivity of neurones in visual cortex (area 17) under different levels of anaesthesia , 2004, Experimental Brain Research.

[14]  A. Fuchs,et al.  Spatial and temporal properties of X and Y cells in the cat lateral geniculate nucleus. , 1979, The Journal of physiology.

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

[16]  C. Gilbert.  Laminar differences in receptive field properties of cells in cat primary visual cortex , 1977, The Journal of physiology.

[17]  P Sterling,et al.  Visual receptive fields in the superior colliculus of the cat. , 1969, Journal of neurophysiology.

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

[19]  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.