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- W2963793485 abstract "Sensory stimuli can be recognized more rapidly when they are expected. This phenomenon depends on expectation affecting the cortical processing of sensory information. However, the mechanisms responsible for the effects of expectation on sensory circuits remain elusive. In the present study, we report a novel computational mechanism underlying the expectation-dependent acceleration of coding observed in the gustatory cortex of alert rats. We use a recurrent spiking network model with a clustered architecture capturing essential features of cortical activity, such as its intrinsically generated metastable dynamics. Relying on network theory and computer simulations, we propose that expectation exerts its function by modulating the intrinsically generated dynamics preceding taste delivery. Our model's predictions were confirmed in the experimental data, demonstrating how the modulation of ongoing activity can shape sensory coding. Altogether, these results provide a biologically plausible theory of expectation and ascribe an alternative functional role to intrinsically generated, metastable activity." @default.
- W2963793485 created "2019-07-30" @default.
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- W2963793485 date "2019-04-01" @default.
- W2963793485 modified "2023-09-27" @default.
- W2963793485 title "Expectation-induced modulation of metastable activity underlies faster coding of sensory stimuli" @default.
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- W2963793485 doi "https://doi.org/10.1038/s41593-019-0364-9" @default.
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