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Revisiting nonlinear functional brain co-activations: Directed, dynamic, and delayed
(Frontiers Media, 2021-10-12)
The center stage of neuro-imaging is currently occupied by studies of functional correlations between brain regions. These correlations define the brain functional networks, which are the most frequently used framework to ...
How the brain transitions from conscious to subliminal perception
(Pergamon-Elsevier Science Ltd, 2019-07-15)
We study the transition in the functional networks that characterize the human brains’ conscious-state to an unconscious subliminal state of perception by using k-core percolation. We find that the most inner core (i.e., ...
Consciousness as an emergent phenomenon: A tale of different levels of description
(Multidisciplinary Digital Publishing Institute, 2020-09)
One of the biggest queries in cognitive sciences is the emergence of consciousness from matter. Modern neurobiological theories of consciousness propose that conscious experience is the result of interactions between ...
Neuroprotective agents in brain injury: A partial failure?
(Taylor & Francis Ltd, 2012-05)
Brain injury leads to inflammation, stress, and cell death. Neurons are more susceptible to injury than astrocytes, as they have limited antioxidant capacity, and rely heavily on their metabolic coupling with astrocytes ...
On a Simple General Principle of Brain Organization
(Frontiers Research Foundation, 2019-10)
A possible framework to characterize nervous system dynamics and its organization in conscious and unconscious states is introduced, derived from a high level perspective on the coordinated activity of brain cell ensembles. ...
Analysis of Brain Nuclei Accessible to Ghrelin Present in the Cerebrospinal Fluid
(Pergamon-Elsevier Science Ltd., 2013-12-03)
Ghrelin is a stomach-derived peptide hormone that acts in the brain to regulate many important physiological functions. Ghrelin receptor, named the growth hormone secretagogue receptor (GHSR), is present in many brain areas ...
On the pros and cons of using temporal derivatives to assess brain functional connectivity
(Elsevier, 2019-01)
The study of correlations between brain regions is an important chapter of the analysis of large-scale brain spatiotemporal dynamics. In particular, novel methods suited to extract dynamic changes in mutual correlations ...
Variability in functional brain networks predicts expertise during action observation
(Academic Press Inc Elsevier Science, 2016-09)
Observing an action performed by another individual activates, in the observer, similar circuits as those involved in the actual execution of that action. This activation is modulated by prior experience; indeed, sustained ...
Enhanced Repertoire of Brain Dynamical States During the Psychedelic Experience
(Wiley-liss, Div John Wiley & Sons Inc, 2014-07)
Abstract: The study of rapid changes in brain dynamics and functional connectivity (FC) is of increasing interest in neuroimaging. Brain states departing from normal waking consciousness are expected to be accompanied by ...
IGF-I and the aging mammalian brain
(Elsevier Inc, 2010)