Espinosa, NelsonMariño Alfonso, XurxoLabra, Carmen deCudeiro, Javier2015-04-302015-04-302011-02-10Espinosa 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):e17041http://hdl.handle.net/2183/14465[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.engCreative Commons Attribution 4.0 International License (CC-BY 4.0)http://creativecommons.org/licenses/by/4.0/journal articleopen access