Altered processing of sensory stimuli in patients with migraine
… is characterized by impaired habituation to repetitive stimuli. The habituation deficit is observed
across several sensory modalities, and is … Lack of habituation is the most prominent (and …
across several sensory modalities, and is … Lack of habituation is the most prominent (and …
Disentangling high-order mechanisms and high-order behaviours in complex systems
… same question, in this correspondence we clarify that this is not the case, and that a complete
… , but complementary perspective is to focus on the resulting high-order behaviour, that is, …
… , but complementary perspective is to focus on the resulting high-order behaviour, that is, …
Kernel method for nonlinear Granger causality
D Marinazzo, M Pellicoro, S Stramaglia - Physical review letters, 2008 - APS
… i 1 r2 i , where ri is the Pearson’s correlation coefficient of x and ti. To avoid false causalities,
we first evaluate, by Student’s t test, the probability i that ri is due to chance, assuming x and …
we first evaluate, by Student’s t test, the probability i that ri is due to chance, assuming x and …
Radial basis function approach to nonlinear Granger causality of time series
… C is a measure of the complexity of machine f and it is related to the so-called Vapnik-…
space where our predictor “lives” is small, then the empirical risk is a good approximation of the …
space where our predictor “lives” is small, then the empirical risk is a good approximation of the …
A blind deconvolution approach to recover effective connectivity brain networks from resting state fMRI data
… ϵ (t) is the … s(t) with a hypothetical model of the neural activation for s(t). Here we employ
a simple on–off model of activation to model s(t):(2) s ˆ ( t ) = ∑ τ = 0 ∞ δ ( t - τ ) where δ(t − τ) is …
a simple on–off model of activation to model s(t):(2) s ˆ ( t ) = ∑ τ = 0 ∞ δ ( t - τ ) where δ(t − τ) is …
Kernel-Granger causality and the analysis of dynamical networks
D Marinazzo, M Pellicoro, S Stramaglia - Physical review E, 2008 - APS
… is perfectly reconstructed if N 5000, while if N is further lowered some errors in the reconstructed
network appear. Moreover, it is im… K j→i depend on the link, as it is shown in Fig. 5. …
network appear. Moreover, it is im… K j→i depend on the link, as it is shown in Fig. 5. …
Nonlinear connectivity by Granger causality
… Nonlinearity is certainly another assumption that we should make, but it is not clear if this
nonlinearity should reside in s(t) or in the HRF h(t). A biologically inspired model has to answer …
nonlinearity should reside in s(t) or in the HRF h(t). A biologically inspired model has to answer …
[HTML][HTML] A novel brain partition highlights the modular skeleton shared by structure and function
…, I Escudero, B Mateos, MA Muñoz, S Stramaglia… - Scientific reports, 2015 - nature.com
… (eg, by modifications of existing methods for modularity optimization); although we are
aware this is a challenging and interesting problem, it is beyond the aim of the current work. …
aware this is a challenging and interesting problem, it is beyond the aim of the current work. …
Steady-state visual evoked potentials and phase synchronization in migraine patients
…, G Nardulli, L Nitti, M Pellicoro, C Pierro, S Stramaglia - Physical review …, 2004 - APS
We investigate phase synchronization in EEG recordings from migraine patients. We use the
analytic signal technique, based on the Hilbert transform, and find that migraine brains are …
analytic signal technique, based on the Hilbert transform, and find that migraine brains are …
Synergy and redundancy in the Granger causal analysis of dynamical networks
… (CGC) is not … is low, thus making the fully conditioned approach unfeasible, we show that
partially conditioned GC (PCGC) is an effective approach if the set of conditioning variables is …
partially conditioned GC (PCGC) is an effective approach if the set of conditioning variables is …