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http://hdl.handle.net/2183/14465 Cortical modulation of the transient visual response at thalamic level: a TMS study
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Espinosa N, Mariño J, Labra C de, Cudeiro J. Cortical modulation of the transient visual response at thalamic level: a TMS study. PLoS ONE. 2011;6(2):e17041
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Abstract
[Abstract] The transient visual response of feline dorsal lateral geniculate nucleus (dLGN) cells was studied under control conditions
and during the application of repetitive transcranial magnetic stimulation at 1 Hz (rTMS@1Hz) on the primary visual cortex
(V1). The results show that rTMS@1Hz modulates the firing mode of Y cells, inducing an increase in burst spikes and a
decrease in tonic firing. On the other hand, rTMS@1Hz modifies the spatiotemporal characteristics of receptive fields of X
cells, inducing a delay and a decrease of the peak response, and a change of the surround/center amplitude ratio of RF
profiles. These results indicate that V1 controls the activity of the visual thalamus in a different way in the X and Y pathways,
and that this feedback control is consistent with functional roles associated with each cell type.
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Except where otherwise noted, this item's license is described as Creative Commons Attribution 4.0 International License (CC-BY 4.0)