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- W2891664217 abstract "Abstract There is convincing evidence that the deprivation of one sense can lead to adaptive neuronal changes in the spared primary sensory cortices. However, the repercussions of late-onset sensory deprivations on functionality of the remaining sensory cortices are poorly understood. Using repeated intrinsic signal imaging we investigated the effects of whisker or auditory deprivation (WD or AD, respectively) on responsiveness of the binocular primary visual cortex (V1) in fully adult mice. The binocular zone of mice is innervated by both eyes, with the contralateral eye always dominating V1 input over ipsilateral eye input, the normal ocular dominance (OD) ratio. Strikingly, we found that 3 days after WD or AD there was a transient shift of OD, which was mediated by a potentiation of V1 input through the ipsilateral eye. This cross-modal effect was accompanied by strengthening of V1 layer 4 synapses, required visual experience through the ipsilateral eye and was mediated by an increase of the excitation/inhibition ratio in V1. Finally, we demonstrate that both WD and AD induced a long-lasting improvement of visual performance. Our data provide evidence that the deprivation of a non-visual sensory modality cross-modally induces experience dependent V1 plasticity and improves visual behavior, even in adult mice." @default.
- W2891664217 created "2018-09-27" @default.
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- W2891664217 date "2018-09-11" @default.
- W2891664217 modified "2023-09-25" @default.
- W2891664217 title "Visual deprivation independent shift of ocular dominance induced by cross-modal plasticity" @default.
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- W2891664217 doi "https://doi.org/10.1101/413229" @default.
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