The spatio‐temporal characteristics of cat retinal ganglion cells showing linear summation
have been studied by measuring both magnitude and phase of the responses of these cells …

The classification of cat retinal ganglion cells as X or Y on the basis of linearity or
nonlinearity of spatial summation has been confirmed and extended. Recordings were taken …

Spatiotemporal frequency responses were measured at different levels of light adaptation for
cat X and Y retinal ganglion cells. Stationary sinusoidal luminance gratings whose contrast …

1. We studied how responses to visual stimuli at spatially separated locations were
combined by cat retinal ganglion cells. 2. The temporal signal which modulated the stimuli …

1. The discharges of single X and Y ganglion cells (distinguished by a test of linearity of
spatial summation) were recorded in the optic tract of anaesthetized, paralysed cats. 2 …

We investigated receptive field properties of cat retinal ganglion cells with visual stimuli
which were sinusoidal spatial gratings amplitude modulated in time by a sum of sinusoids …

1. Properties of the central response mechanism of on‐centre ganglion cells in the cat retina
were studied by recording, from optic tract fibres, responses evoked by stimuli modulated …

1. Spatial summation within cat retinal receptive fields was studied by recording from optic‐
tract fibres the responses of ganglion cells to grating patterns whose luminance …

1. The dynamics of the centre mechanism of individual cat X retinal ganglion cells is
investigated. The visual stimuli consist of temporal contrast modulation of stationary patterns …

The summing properties of ganglion cells in the cat's retina have been examined, using as
stimuli two stationary, flashing spots of light, both positioned within the center regions of the …