Exploració per autor "Deco, Gustavo"
Ara es mostren els items 20-30 de 30
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One ring to rule them all: the unifying role of prefrontal cortex in steering task-related brain dynamics
Deco, Gustavo; Sanz Perl, Yonatan; Ponce Álvarez, Adrián Fernando; Tagliazucchi, Enzo; Whybrow, Peter C; Fuster, Joaquín; Kringelbach, Morten L. (2023-08)
Article
Accés obertSurviving and thriving in a complex world require intricate balancing of higher order brain functions with essential survival-related behaviours. Exactly how this is achieved is not fully understood but a large body of ... -
Resting-state functional connectivity emerges from structurally and dynamically shaped slow linear fluctuations
Deco, Gustavo; Ponce Álvarez, Adrián Fernando; Mantini, Dante; Romani, Gian Luca; Hagmann, Patrick; Corbetta, Maurizio (2013-07-03)
Article
Accés obertBrain fluctuations at rest are not random but are structured in spatial patterns of correlated activity across different brain areas. The question of how resting-state functional connectivity (FC) emerges from the brain's ... -
Resting-state temporal synchronization networks emerge from connectivity topology and heterogeneity
Ponce Álvarez, Adrián Fernando; Deco, Gustavo; Hagmann, Patrick; Romani, Gian Luca; Mantini, Dante; Corbetta, Maurizio (Public Library of Science (PLOS), 2015-02-18)
Article
Accés obertSpatial patterns of coherent activity across different brain areas have been identified during the resting-state fluctuations of the brain. However, recent studies indicate that resting-state activity is not stationary, ... -
Spontaneous cortical activity is transiently poised close to criticality
Hahn, Gerald; Ponce Álvarez, Adrián Fernando; Monier, Cyril; Benvenuti, Giacomo; Kumar, Arvind; Chavane, Frédéric; Deco, Gustavo; Frégnac, Yves (Public Library of Science (PLOS), 2017-05-24)
Article
Accés obertBrain activity displays a large repertoire of dynamics across the sleep-wake cycle and even during anesthesia. It was suggested that criticality could serve as a unifying principle underlying the diversity of dynamics. ... -
Stimulus-dependent variability and noise correlations in cortical MT neurons
Ponce Álvarez, Adrián Fernando; Thiele, Alexander; Albright, Thomas D.; Stoner, Gene R.; Deco, Gustavo (International Academy of Sciences (NAS), 2013-08-06)
Article
Accés obertPopulation codes assume that neural systems represent sensory inputs through the firing rates of populations of differently tuned neurons. However, trial-by-trial variability and noise correlations are known to affect the ... -
Synaptic depression and slow oscillatory activity in a biophysical network model of the cerebral cortex
Benita, Jose M.; Guillamon Grabolosa, Antoni; Deco, Gustavo; Sánchez-Vives, Maria V. (2012-08-28)
Article
Accés obertShort-termsynapticdepression(STD)isaformofsynapticplasticitythathasalargeimpactonnetworkcomputations.ExperimentalresultssuggestthatSTDismodulatedbycorticalactivity,decreasingwithactivityinthenetworkandincreasingduringsil ... -
Task-driven activity reduces the cortical activity space of the brain: experiment and whole-brain modeling
Ponce Álvarez, Adrián Fernando; He, Biyu J; Hagmann, Patrick; Deco, Gustavo (Public Library of Science (PLOS), 2015-08-28)
Article
Accés obertHow a stimulus or a task alters the spontaneous dynamics of the brain remains a fundamental open question in neuroscience. One of the most robust hallmarks of task/stimulus-driven brain dynamics is the decrease of variability ... -
The emergence of spontaneous and evoked functional connectivity in a large-scale model of the brain
Ponce Álvarez, Adrián Fernando; Deco, Gustavo (Elsevier, 2015-02-24)
Capítol de llibre
Accés restringit per política de l'editorialWe show how functional connectivity (FC) emerges in an anatomically constrained large-scale spiking model of the brain. To gain theoretical insights, we approximate the model, using a mean-field technique that leads to a ... -
The Hopf whole-brain model and its linear approximation
Ponce Álvarez, Adrián Fernando; Deco, Gustavo (Springer Nature, 2024-01-31)
Article
Accés obertWhole-brain models have proven to be useful to understand the emergence of collective activity among neural populations or brain regions. These models combine connectivity matrices, or connectomes, with local node dynamics, ... -
Using in silico perturbational approach to identify critical areas in schizophrenia
Vila Vidal, Manel; Kringelbach, Morten L.; Deco, Gustavo (2023-06-15)
Article
Accés restringit per política de l'editorialSchizophrenia is a debilitating neuropsychiatric disorder whose underlying correlates remain unclear despite decades of neuroimaging investigation. One contentious topic concerns the role of global signal (GS) fluctuations ... -
Whole-brain neuronal activity displays crackling noise dynamics
Ponce Álvarez, Adrián Fernando; Jouary, Adrien; Privat, Martin; Deco, Gustavo; Sumbre, Germán (2018-12-19)
Article
Accés obertPrevious studies suggest that the brain operates at a critical point in which phases of order and disorder coexist, producing emergent patterned dynamics at all scales and optimizing several brain functions. Here, we ...