Browsing by Author "Romero Lafuente, Sergio"
Now showing items 21-40 of 52
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Estudi de la connectivitat cerebral durant la vigília prolongada
Marta, Alcalá; Alonso López, Joan Francesc; Giménez, Sandra; Romero Lafuente, Sergio; Mañanas Villanueva, Miguel Ángel (EUETIB, 2014-12-01)
Conference report
Open AccessEn aquest estudi s’avaluen els efectes de la privació de son sobre el senyals electroencefalogràfics de voluntaris sans mitjançant la transferència d’entropia (TE), una tècnica no paramètrica que permet detectar dependències ... -
Estudio de la conectividad cerebral mediante transferencia de entropía
Alcalá Álvarez, Marta; Alonso López, Joan Francesc; Giménez Badia, Sandra; Romero Lafuente, Sergio; Mañanas Villanueva, Miguel Ángel (2014)
Conference lecture
Open AccessEn el presente trabajo se estudian los efectos de la privación del sueño sobre las señales electroencefalográficas de voluntarios sanos mediante la transferencia de entropía (TE), una técnica no paramétrica que permite ... -
Evaluation of multiple comparison correction procedures in drug assessment studies using LORETA maps
Alonso López, Joan Francesc; Romero Lafuente, Sergio; Mañanas Villanueva, Miguel Ángel; Rojas Martínez, Mónica; Riba Serrano, Jordi; Barbanoj, Manuel José (2015-10-01)
Article
Open AccessThe identification of the brain regions involved in the neuropharmacological action is a potential procedure for drug development. These regions are commonly determined by the voxels showing significant statistical differences ... -
FONAMENTS D'AUTOMÀTICA (Examen 3r quadrimestre)
Aguado Chao, Juan Carlos; Romero Lafuente, Sergio (Universitat Politècnica de Catalunya, 2003-01-14)
Exam
Restricted access to the UPC academic community -
FONAMENTS D'AUTOMÀTICA (Examen 3r quadrimestre)
Aguado Chao, Juan Carlos; Romero Lafuente, Sergio (Universitat Politècnica de Catalunya, 2003-01-14)
Exam
Restricted access to the UPC academic community -
Identificación de tareas isométricas y dinámicas del miembro superior basada en EMG de alta densidad
Rojas Martínez, Mónica; Alonso López, Joan Francesc; Jordanic, Mislav; Romero Lafuente, Sergio; Mañanas Villanueva, Miguel Ángel (Elsevier, 2017-10-01)
Article
Open AccessLa identificación de tareas y estimación del movimiento voluntario basados en electromiografía (EMG) constituyen un problema conocido que involucra diferentes áreas en sistemas expertos, particularmente la de reconocimiento ... -
Implementació i anàlisi de la metodologia Learning by doing a les assignatures d’Informàtica dels estudis de Nàutica
Fonollosa Magrinyà, Jordi; Aymerich Martínez, Francisco Javier; Romero Lafuente, Sergio; Jordanic, Mislav; Fernández Canti, Rosa M. (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2022-05)
Article
Open AccessÉs habitual que els plans d'estudi per a titulacions de grau incloguin una assignatura transversal d'informàtica el primer any. Als estudis de Nàutica trobem un perfil d'alumnat que percep l'assignatura com una matèria ... -
Implementación de una metodología basada en el aprendizaje por proyectos como herramienta para aumentar la motivación de los estudiantes en asignaturas transversales de Informática
Fonollosa Magrinyà, Jordi; Aymerich Martínez, Francisco Javier; Jordanic, Mislav; Tost Abadías, Ana; Romero Lafuente, Sergio; Fernández Canti, Rosa M.; Maccarrone, Alessandro (Asociación de Enseñantes Universitarios de la Informática (AENUI), 2021)
Conference report
Open AccessEs habitual que planes de estudio para titulaciones de grado incluyan una asignatura transversal de informá- tica en el primer año. En los estudios de Náutica encontramos un perfil de alumnado que percibe la asignatura ... -
Improving the quality of combined TMS-EEG neural recordings: artefact removal and time analysis
Mijancos Martínez, Gema; Bachiller Matarranz, Alejandro; Fernández Linsenbarth, Inés; Alonso López, Joan Francesc; Romero Lafuente, Sergio; Molina Rodriguez, Vicente; Mañanas Villanueva, Miguel Ángel (Sociedad Española de Ingeniería Biomédica (SEIB), 2022)
Conference lecture
Open AccessTranscranial magnetic stimulation and electroencephalography (TMS-EEG) recordings are key to perform a direct evaluation of cortical function in a non-invasive and task-free manner. For the past few years, it has been used ... -
Improving the ripple classification in focal pediatric epilepsy: identifying pathological high-frequency oscillations by Gaussian mixture model clustering
Migliorelli Falcone, Carolina Mercedes; Romero Lafuente, Sergio; Bachiller Matarranz, Alejandro; Aparicio Calvo, Javier; Alonso López, Joan Francesc; Mañanas Villanueva, Miguel Ángel; San Antonio Arce, María Victoria (2021-08-01)
Article
Open AccessObjective: High-frequency oscillations (HFOs) have emerged as a promising clinical biomarker for presurgical evaluation in childhood epilepsy. HFOs are commonly classified in stereo-encephalography as ripples (80–200 Hz) ... -
Increased frontal and paralimbic activation following ayahuasca, the pan-Amazonian inebriant
Riba, J; Romero Lafuente, Sergio; Grasa, E; Mena, E; Carrio, I; Barbanoj, Manel J. (2006-03)
Article
Open AccessAyahuasca is a South American psychoactive plant tea which contains the serotonergic psychedelic N,N-dimethyltryptamine (DMT) and monoamine- oxidase inhibitors that render DMT orally active. Previous investigations ... -
Individualized time windows enhance TMS-EEG signal characterization and improve assessment of cortical function in schizophrenia
Mijancos Martínez, Gema; Bachiller Matarranz, Alejandro; Fernández Linsenbarth, Inés; Romero Lafuente, Sergio; Serna Higuita, Leidy Yanet; Molina, Vicente; Mañanas Villanueva, Miguel Ángel (2025-04)
Article
Open AccessTranscranial magnetic stimulation and electroencephalography (TMS-EEG) recordings are crucial to directly assess cortical excitability and inhibition in a non-invasive and task-free manner. TMS-EEG signals are characterized ... -
Influence of metallic artifact filtering on MEG signals for source localization during interictal epileptiform activity
Migliorelli Falcone, Carolina Mercedes; Alonso López, Joan Francesc; Romero Lafuente, Sergio; Mañanas Villanueva, Miguel Ángel; Nowak, Rafal; Russi Tintoré, Antonio (2016-03-02)
Article
Open AccessObjective. Medical intractable epilepsy is a common condition that affects 40% of epileptic patients that generally have to undergo resective surgery. Magnetoencephalography (MEG) has been increasingly used to identify the ... -
Influence of the number of trials on evoked motor cortical activity in EEG recordings
Borràs Argemí, Marta; Romero Lafuente, Sergio; Alonso López, Joan Francesc; Bachiller Matarranz, Alejandro; Serna Higuita, Leidy Yanet; Migliorelli Falcone, Carolina Mercedes; Mañanas Villanueva, Miguel Ángel (2022-08-26)
Article
Open AccessObjective. Improvements in electroencephalography enable the study of the localization of active brain regions during motor tasks. Movement-related cortical potentials (MRCPs), and event-related desynchronization (ERD) and ... -
Inhibition of alpha oscillations through serotonin-2A receptor activation underlies the visual effects of ayahuasca in humans
Valle, Marta; Ana Elda, Maqueda; Rabella, Mireia; Rodríguez Pujadas, Aina; Antonijoan Arbós, Rosa Maria; Romero Lafuente, Sergio; Alonso López, Joan Francesc; Mañanas Villanueva, Miguel Ángel; Barker, Steven; Friedlander, Pablo; Feilding, Amanda; Riba, Jordi (2016-07)
Article
Open AccessAyahuasca is an Amazonian psychotropic plant tea typically obtained from two plants, Banisteriopsis caapi and Psychotria viridis. It contains the psychedelic 5-HT2A and sigma-1 agonist N,N-dimethyltryptamine (DMT) plus ... -
MEG Connectivity Analysis in Patients with Alzheimer’s Disease Using Cross Mutual Information and Spectral Coherence
Alonso López, Joan Francesc; Poza Crespo, Jesús; Mañanas Villanueva, Miguel Ángel; Romero Lafuente, Sergio; Fernández Lucas, Alberto; Hornero Sánchez, Roberto (2011-01)
Article
Restricted access - publisher's policy -
Methodological biases in observational hospital studies of COVID-19 treatment effectiveness: pitfalls and potential
Martinuka, Oksana; Hazard, Derek; Marateb, Hamid Reza; Mansourian Gharakozlou, Marjan; Mañanas Villanueva, Miguel Ángel; Romero Lafuente, Sergio; Rubio Rivas, Manuel; Wolkewitz, Martin (Frontiers Media SA, 2024-03-21)
Article
Open AccessIntroduction: This study aims to discuss and assess the impact of three prevalent methodological biases: competing risks, immortal-time bias, and confounding bias in real-world observational studies evaluating treatment ... -
Monitoring sleep depth: analysis of bispectral index (BIS) based on polysomnographic recordings and sleep deprivation
Giménez Badia, Sandra; Romero Lafuente, Sergio; Alonso López, Joan Francesc; Mañanas Villanueva, Miguel Ángel; Pujol, Anna; Baxarias, Pilar; Antonijoan Arbós, Rosa Maria (2015-11-14)
Article
Open Access© 2015 Springer Science+Business Media Dordrecht The assessment and management of sleep are increasingly recommended in the clinical practice. Polysomnography (PSG) is considered the gold standard test to monitor sleep ... -
Neurophysiological evidence of compensatory brain mechanisms in early-stage multiple sclerosis
Lopez Gongora, Mariana; Escartín, José Antonio; Martinez Horta, Saul; Fernandez De Bobadilla, Ramon; Querol, Luis; Romero Lafuente, Sergio; Mañanas Villanueva, Miguel Ángel; Riba Serrano, Jordi (2015-08-31)
Article
Open AccessMultiple sclerosis (MS) is a chronic central nervous system disorder characterized by white matter inflammation, demyelination and neurodegeneration. Although cognitive dysfunction is a common manifestation, it may go ... -
Obstructive sleep apnea severity affects amyloid burden in cognitively normal elderly a longitudinal study
Sharma, Ram A.; Varga, Andrew W.; Bubu, Omonigho M.; Romero Lafuente, Sergio (2018-04-01)
Article
Open AccessRecent evidence suggests that Obstructive Sleep Apnea (OSA) may be a risk factor for developing Mild Cognitive Impairment and Alzheimer’s disease. However, how sleep apnea affects longitudinal risk for Alzheimer’s disease ...