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The retinal input to cells in area 17 of the cat's cortex

✍ Scribed by B. B. Lee; B. G. Cleland; O. D. Creutzfeldt

Publisher
Springer-Verlag
Year
1977
Tongue
English
Weight
753 KB
Volume
30
Category
Article
ISSN
0014-4819

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✦ Synopsis

The activity of retinal ganglion cells and cortical cells with overlapping receptive fields was simultaneously recorded. The responses to moving stimuli of individual simple cortical cells could be accounted for on the basis of the cell receiving either on-centre or off-centre afferents; instances in which it was necessary to postulate a mixed on- and off-centre input were not found. In six instances cross correlograms of ganglion cell and cortical cell activity showed that the ganglion cell was afferent, via a relay cell in the LGN, to the cortical neurone. The receptive fields of such pairs were almost completely overlapping and concentric. In three cases a sustained ganglion cell projected to a simple cortical cell. In one case a transient ganglion cell projected to a simple cell, and in one case a sustained and a transient ganglion cell projected to the same simple cell.

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Orientation tuning of cells in areas 17
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Collinearity tolerance and length dependence of orientation tuning were compared in cells recorded from areas 17 and 18 of the lightly anaesthetised cat's visual cortex. Orientation tuning and interaction between receptive field halves of the same cells are reported in the preceding paper and elsewh