Porcaro, Camillo Cottone, Carlo Cancelli, Andrea Salustri, Carlo Tecchio, Franca
Published in
International journal of neural systems
High time resolution techniques are crucial for investigating the brain in action. Here, we propose a method to identify a section of the upper-limb motor area representation (FS_M1) by means of electroencephalographic (EEG) signals recorded during a completely passive condition (FS_M1bySS). We delivered a galvanic stimulation to the median nerve a...
Bruder, Jonas C Dümpelmann, Matthias Piza, Daniel Lachner Mader, Malenka Schulze-Bonhage, Andreas Jacobs-Le Van, Julia
Published in
International journal of neural systems
High frequency oscillations (HFOs, 80-500[Formula: see text]Hz) serve as novel electroencephalography (EEG) markers of epileptic tissue. The differentiation of physiological and epileptic HFO is an important challenge and is complicated by the fact that both types are generated in mesiotemporal structures. This study aimed to identify oscillation f...
Martín-López, David Jiménez-Jiménez, Diego Cabañés-Martínez, Lidia Selway, Richard P Valentín, Antonio Alarcón, Gonzalo
Published in
International journal of neural systems
In human generalized seizures, the thalamus may become involved early or late in the seizure but, once it becomes involved, it leads the cortex. In contrast, in human frontal seizures the thalamus gets involved late in the seizure and, once it becomes involved, it lags behind the cortex. In addition, the centromedian nucleus of the thalamus is capa...
Nagaraj, Vivek Lamperski, Andrew Netoff, Theoden I
Published in
International journal of neural systems
Neuromodulation technologies such as vagus nerve stimulation and deep brain stimulation, have shown some efficacy in controlling seizures in medically intractable patients. However, inherent patient-to-patient variability of seizure disorders leads to a wide range of therapeutic efficacy. A patient specific approach to determining stimulation param...
Legaz-Aparicio, Alvar-Ginés Verdú-Monedero, Rafael Larrey-Ruiz, Jorge Morales-Sánchez, Juan López-Mir, Fernando Naranjo, Valery Bernabéu, Ángela
Published in
International journal of neural systems
This paper addresses the functional localization of intra-patient images of the brain. Functional images of the brain (fMRI and PET) provide information about brain function and metabolism whereas anatomical images (MRI and CT) supply the localization of structures with high spatial resolution. The goal is to find the geometric correspondence betwe...
Wostyn, Simon Staljanssens, Willeke De Taeye, Leen Strobbe, Gregor Gadeyne, Stefanie Van Roost, Dirk Raedt, Robrecht Vonck, Kristl van Mierlo, Pieter
Published in
International journal of neural systems
The mechanism of action of vagus nerve stimulation (VNS) is yet to be elucidated. To that end, the effects of VNS on the brain of epileptic patients were studied. Both when VNS was switched "On" and "Off", the brain activity of responders (R, seizure frequency reduction of over 50%) was compared to the brain activity of nonresponders (NR, seizure f...
Rembado, Irene Castagnola, Elisa Turella, Luca Ius, Tamara Budai, Riccardo Ansaldo, Alberto Angotzi, Gian Nicola Debertoldi, Francesco Ricci, Davide Skrap, Miran
...
Published in
International journal of neural systems
High-density surface microelectrodes for electrocorticography (ECoG) have become more common in recent years for recording electrical signals from the cortex. With an acceptable invasiveness/signal fidelity trade-off and high spatial resolution, micro-ECoG is a promising tool to resolve fine task-related spatial-temporal dynamics. However, volume c...
Gomez-Pilar, Javier Poza, Jesús Bachiller, Alejandro Gómez, Carlos Núñez, Pablo Lubeiro, Alba Molina, Vicente Hornero, Roberto
Published in
International journal of neural systems
The aim of this study was to introduce a novel global measure of graph complexity: Shannon graph complexity (SGC). This measure was specifically developed for weighted graphs, but it can also be applied to binary graphs. The proposed complexity measure was designed to capture the interplay between two properties of a system: the 'information' (calc...
Gliske, Stephen V Stacey, William C Lim, Eugene Holman, Katherine A Fink, Christian G
Published in
International journal of neural systems
Previous experimental studies have demonstrated the emergence of narrowband local field potential oscillations during epileptic seizures in which the underlying neural activity appears to be completely asynchronous. We derive a mathematical model explaining how this counterintuitive phenomenon may occur, showing that a population of independent, co...
Yang, Yuan Solis-Escalante, Teodoro Yao, Jun van der Helm, Frans C T Dewald, Julius P A Schouten, Alfred C
Published in
International journal of neural systems
Communication between neuronal populations is facilitated by synchronization of their oscillatory activity. Although nonlinearity has been observed in the sensorimotor system, its nonlinear connectivity has not been widely investigated yet. This study investigates nonlinear connectivity during the human stretch reflex based on neuronal synchronizat...
